Patent Publication Number: US-11046567-B2

Title: Beverage aseptic filling system and carbonated beverage aseptic filling system

Description:
BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present invention relates to a beverage aseptic filling system and a carbonated beverage aseptic filling system. 
     Background Art 
     Conventionally, a container with a beverage including a carbonated beverage containing components derived from animals or plants, such as fruit juice and a milk component, has been manufactured. In this case, first, a container (PET bottle) is filled with a carbonated beverage, and then heat sterilization treatment for heating the carbonated beverage together with the container is performed. By performing the heat sterilization treatment, proliferation of mold, yeast and other microorganisms in the carbonated beverage can be suppressed. For example, in a case of a carbonated beverage containing fruit juice, carbon dioxide gas is injected at a low temperature into a liquid preparation obtained by mixing nitrogen sources, such as fruit juice and a milk component. After the above, a container is filled with the liquid preparation in which carbon dioxide gas is dissolved, and the container is sealed with a cap. Next, the carbonated beverage with which the container is filled is applied with heat sterilization treatment from the outside of the container, so that the carbonated beverage and the container are sterilized simultaneously. The heat sterilization treatment is generally performed under the condition that the carbonated beverage is heated at a liquid temperature of 60° C. or more and 65° C. or less for about 10 minutes. 
     CITATION LIST 
     Patent Literature 
     
         
         Patent Literature 1: JP 2006-211931 A 
         Patent Literature 2: JP 4674743 B2 
       
    
     However, in a case where the conventional heat sterilization treatment is performed, the content made up of a carbonated beverage, for example, a content liquid containing nitrogen sources, such as fruit juice and a milk component, may be changed in quality. Further, since the container is expanded at the time of the heat sterilization treatment, disadvantages, such as deformation of the container, occur. For this reason, it is considered not to perform heat sterilization treatment by filling a container with a carbonated beverage using an aseptic filling facility. 
     In a case where a container is filled with a carbonated beverage using an aseptic filling facility as described above, the aseptic filling facility is provided with a dedicated sterilizer (carbonator or the like) to be filled with the carbonated beverage. For this reason, conventionally, there has been a problem that it is difficult to use an aseptic filling facility for filling a container with a carbonated beverage directly as an aseptic filling facility for filling a container with a non-carbonated beverage. 
     On the other hand, some carbonated beverages, such as cola and soda, do not require a sterilization process (non-sterilized carbonated beverages). For this reason, in a case where an aseptic filling facility for filling a container with carbonated beverages (sterilized carbonated beverages) that require sterilization is used directly as an aseptic filling facility for non-sterilized carbonated beverages, non-sterilized carbonated beverages that do not require sterilization are also caused to pass through a sterilizer. In this case, it is necessary to perform useless work, such as cleaning and sterilizing the sterilizer by, for example, CIP treatment. 
     The present invention has been made in consideration of the above, and an object of the present invention is to provide a beverage aseptic filling system that can fill a container with both a carbonated beverage and a non-carbonated beverage using the same beverage aseptic filling system. Further, an object of the present invention is to provide a carbonated beverage aseptic filling system that is capable of efficiently filling a container with both a sterilized carbonated beverage for which sterilization treatment is performed and a non-sterilized carbonated beverage that does not require sterilization using the same carbonated beverage aseptic filling system. 
     SUMMARY OF INVENTION 
     The present invention is a beverage aseptic filling system for both a carbonated beverage and a non-carbonated beverage, the beverage aseptic filling system including a raw material liquid preparation unit that prepares a raw material liquid, a beverage sterilization unit that is connected to the raw material liquid preparation unit and sterilizes a beverage, a beverage filling unit that fills a container with the beverage, a switching valve that is provided between the beverage sterilization unit and the beverage filling unit, a first filling line that is provided between the switching valve and the beverage filling unit, and a second filling line that is connected to the switching valve and has a beverage cooling unit for cooling the beverage and a carbonated beverage production unit for injecting carbon dioxide gas into the beverage disposed therein, wherein the switching valve supplies the beverage to either one of the first filling line and the second filling line selectively. 
     The present invention is the beverage aseptic filling system, wherein, in a case where a beverage with which the container is filled by the beverage filling unit is a carbonated beverage, the beverage from the switching valve is supplied to the beverage filling unit via at least the second filling line, and, in a case where a beverage with which the container is filled by the beverage filling unit is a non-carbonated beverage, the beverage from the switching valve is supplied to the beverage filling unit via the first filling line without passing through the second filling line. 
     The present invention is the beverage aseptic filling system, wherein the second filling line is configured in a loop, and a beverage from the second filling line is sent to the first filling line via the switching valve. 
     The present invention is the beverage aseptic filling system, wherein the raw material liquid preparation unit and the beverage cooling unit are connected by a third filling line not via the beverage sterilization unit. 
     The present invention is the beverage aseptic filling system, wherein a first aseptic tank for storing the beverage from the beverage sterilization unit is provided between the beverage sterilization unit and the switching valve. 
     The present invention is the beverage aseptic filling system, wherein a second aseptic tank for storing the beverage from the carbonated beverage production unit is provided between the carbonated beverage production unit and the beverage filling unit. 
     According to the present invention, a container can be filled with both a carbonated beverage and a non-carbonated beverage by using the same beverage aseptic filling system. 
     The present invention is a carbonated beverage aseptic filling system for both a sterilized carbonated beverage for which sterilization treatment is performed and a non-sterilized carbonated beverage that does not require sterilization, the carbonated beverage aseptic filling system including a raw material liquid preparation unit that prepares a raw material liquid, a beverage sterilization unit that is connected to the raw material liquid preparation unit and sterilizes a beverage, a beverage cooling unit that is connected to the beverage sterilization unit and cools the beverage, a carbonated beverage production unit that is connected to the beverage cooling unit and injects carbon dioxide gas into the beverage, and a beverage filling unit that is connected to the carbonated beverage production unit and fills a container with the beverage, wherein the raw material liquid preparation unit and the beverage cooling unit are connected by a first bypass filling line not via the beverage sterilization unit. 
     The present invention is the carbonated beverage aseptic filling system, wherein a first aseptic tank for storing the beverage is provided between the beverage sterilization unit and the beverage cooling unit. 
     The present invention is the carbonated beverage aseptic filling system, wherein the raw material liquid preparation unit and the first aseptic tank are connected by a second bypass filling line not via the beverage sterilization unit. 
     The present invention is the carbonated beverage aseptic filling system, wherein a second aseptic tank for storing the beverage from the carbonated beverage production unit is provided between the carbonated beverage production unit and the beverage filling unit. 
     The present invention is a carbonated beverage aseptic filling system for both a sterilized carbonated beverage for which sterilization treatment is performed and a non-sterilized carbonated beverage that does not require sterilization, the carbonated beverage aseptic filling system including a raw material liquid preparation unit that prepares a raw material liquid, a beverage sterilization unit that is connected to the raw material liquid preparation unit and sterilizes a beverage, a first aseptic tank that is connected to the beverage sterilization unit and stores the beverage, a beverage cooling unit that is connected to the first aseptic tank and cools the beverage, a carbonated beverage production unit that is connected to the beverage cooling unit and injects carbon dioxide gas into the beverage, and a beverage filling unit that is connected to the carbonated beverage production unit and fills a container with the beverage, wherein the raw material liquid preparation unit and the first aseptic tank are connected by a second bypass filling line not via the beverage sterilization unit. 
     According to the present invention, the same carbonated beverage aseptic filling system can be used to efficiently fill a container with both a sterilized carbonated beverage for which sterilization treatment is performed and a non-sterilized carbonated beverage that does not require sterilization. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a schematic plan view showing a beverage aseptic filling system according to one embodiment of the present invention. 
         FIG. 2  is a schematic configuration diagram showing a beverage preparation unit and a beverage filling unit in the beverage aseptic filling system according to one embodiment of the present invention. 
         FIG. 3  is a schematic block diagram showing flow of a beverage in the beverage preparation unit and the beverage filling unit in the beverage aseptic filling system according to one embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Hereinafter, an embodiment of the present invention will be described with reference to  FIGS. 1 to 3 .  FIGS. 1 to 3  illustrate one embodiment of the present invention. Note that, in the drawings below, the same reference numerals are given to the same parts, and a part of the detailed description may be omitted. 
     (Beverage Aseptic Filling System) 
     First, a beverage aseptic filling system according to the present embodiment will be described with reference to  FIG. 1 . 
     A beverage aseptic filling system  10  shown in  FIG. 1  is a system for both a carbonated beverage and a non-carbonated beverage, that is, a filling system that can fill a bottle (container)  30  with both a beverage including a carbonated beverage and a beverage including a non-carbonated beverage selectively. Further, the beverage aseptic filling system  10  is a system for both a sterilized carbonated beverage for which sterilization treatment is performed and a non-sterilized carbonated beverage, that is, a filling system that can fill the bottle (container)  30  with both a beverage including a sterilized carbonated beverage and a beverage including a non-sterilized carbonated beverage selectively. The bottle  30  can be made by performing biaxial stretching blow molding on a preform made by performing injection molding on a synthetic resin material. A material of the bottle  30  to be used is preferably a thermoplastic resin such as polyethylene (PE), polypropylene (PP), polyethylene-terephthalate (PET), or polyethylene naphthalate (PEN). In addition, as a container, glass, a can, or the like may be used. The present embodiment will describe an example of a case where a plastic bottle is used for the container. 
     As shown in  FIG. 1 , the beverage aseptic filling system  10  includes a bottle feeding portion  21 , a bottle sterilization unit  11 , an air rinse unit  14 , a sterile water rinse unit  15 , a beverage filling unit (filler)  20 , a cap attachment unit (a capper, a seamer, and a capping machine)  16 , and a product bottle conveyor  22 . These bottle feeding portion  21 , bottle sterilization unit  11 , air rinse unit  14 , sterile water rinse unit  15 , beverage filling unit  20 , cap attachment unit  16 , and product bottle conveyor  22  are disposed in this order along a conveying direction of the bottle  30  from an upstream side to a downstream side. Further, between the bottle sterilization unit  11 , the air rinse unit  14 , the sterile water rinse unit  15 , the beverage filling unit  20 , and the cap attachment unit  16 , a plurality of convey wheels  12  for conveying the bottle  30  between these devices is provided. 
     The bottle feeding portion  21  successively receives the empty bottle  30  from an outside to the beverage aseptic filling system  10 , and conveys the received bottle  30  to the bottle sterilization unit  11 . 
     A bottle molding portion (not shown) which molds the bottle  30  by performing biaxial stretching blow molding on a preform may be provided on the upstream side of the bottle feeding portion  21 . As described above, the process starting upon feeding of the preform, and then molding of the bottle  30 , and ending upon filling of the bottle  30  with the beverage and capping may be performed continuously. In this case, since the beverage can be transported from the outside to the beverage aseptic filling system  10  in the form of a preform having small volume instead of the bottle  30  having large volume, a facility constituting the beverage aseptic filling system  10  can be made compact. 
     The bottle sterilization unit  11  sterilizes the inside of the bottle  30  by injecting a disinfectant into the bottle  30 . As the disinfectant, a hydrogen peroxide aqueous solution is used, for example. In the bottle sterilization unit  11 , mist or gas obtained by temporarily vaporizing and then condensing a hydrogen peroxide solution having a concentration of 1% by weight or more, preferably 35% by weight, is generated, and the mist or gas is sprayed to inner and outer surface of the bottle  30 . Since the inside of the bottle  30  is thus sterilized by the mist or gas of the hydrogen peroxide aqueous solution, the inner surface of the bottle  30  is sterilized uniformly. 
     The air rinse unit  14  supplies sterile heated air or room temperature air into the bottle  30  to remove foreign matter, hydrogen peroxide, and the like from the inside of the bottle  30  while activating the hydrogen peroxide. 
     The sterile water rinse unit  15  washes the bottle  30 , sterilized by hydrogen peroxide as a disinfectant, with sterilized water at 15° C. or more to 85° C. or less. As a result, hydrogen peroxide adhering to the bottle  30  is washed off, and foreign matter is removed. Note that the sterile water rinse unit  15  is not necessarily provided. 
     The beverage filling unit  20  fills the bottle  30  with a sterilized carbonated beverage or a sterilized non-carbonated beverage for which sterilization treatment is performed in advance, or a non-sterilized carbonated beverage that does not require sterilization treatment (hereinafter simply referred to as “beverage”), from a mouth of the bottle  30 . The beverage filling unit  20  fills the bottle  30  in an empty state with a beverage. In the beverage filling unit  20 , while a plurality of the bottles  30  is rotated (revolved), the inside of the bottles  30  is filled with a beverage. 
     In a case where a beverage with which the bottle  30  is filled is a carbonated beverage (sterilized carbonated beverage or non-sterilized carbonated beverage), the bottle  30  is filled with the beverage at a filling temperature of 1° C. or more and 40° C. or less, preferably 5° C. or more and 10° C. or less. The reason for setting the filling temperature of the carbonated beverage to, for example, 1° C. or more and 10° C. or less is that carbon dioxide gas is easily released from the carbonated beverage when the liquid temperature of the carbonated beverage exceeds 10° C. Note that, as a carbonated beverage with which the beverage filling unit  20  is filled, a carbonated beverage (sterilized carbonated beverage) containing a component derived from an animal or a plant, such as fruit juice and a milk component, or a carbonated beverage (non-sterilized carbonated beverage) containing no component derived from an animal or a plant, such as soda, cola, and the like, can be used. 
     When the beverage with which the bottle  30  is filled is a sterilized non-carbonated beverage, the bottle  30  is filled with the beverage at a filling temperature of 1° C. or more and 40° C. or less, preferably 10° C. or more and 30° C. or less. Note that, as a sterilized non-carbonated beverage with which the beverage filling unit  20  fills a bottle, a non-carbonated beverage containing a component derived from an animal or a plant, such as fruit juice and a milk component, can be used. 
     The beverage supplied to the beverage filling unit  20  is prepared by a beverage preparation unit  40  in advance. The beverage filling unit  20  fills the inside of the bottle  30  with a beverage sent from the beverage preparation unit  40 . Note that a configuration of the beverage preparation unit  40  will be described later. 
     The cap attachment unit  16  caps the bottle  30  by attaching a cap  33  to the mouth of the bottle  30 . In the cap attachment unit  16 , the mouth of the bottle  30  is capped with the cap  33  and then sealed so as to prevent external air or microorganisms from invading into the bottle  30 . In the cap attachment unit  16 , while a plurality of the bottles  30  filled with the beverage rotates (revolves), the caps  33  are attached to the mouths of the bottles  30 . In this manner, by attaching the cap  33  to the mouth of the bottle  30 , it is possible to obtain a product bottle  35 . 
     The cap  33  is sterilized by a cap sterilization unit  25  in advance. The cap sterilization unit  25  is disposed outside a sterile chamber  13  (to be described later) and near the cap attachment unit  16 , for example. In the cap sterilization unit  25 , a large number of the caps  33  carried in from the outside are collected in advance and then conveyed in a row toward the cap attachment unit  16 . Mist or gas of hydrogen peroxide is blown against an inner and outer surfaces of the cap  33  on the way of conveyance of the cap  33  toward the cap attachment unit  16  and then dried with hot air and sterilized. 
     The product bottle conveyor  22  continuously conveys the product bottle  35  with the cap  33  attached by the cap attachment unit  16  to the outside of the beverage aseptic filling system  10 . 
     Note that the beverage aseptic filling system  10  includes the sterile chamber  13 . Inside the sterile chamber  13 , the above-mentioned bottle sterilization unit  11 , air rinse unit  14 , sterile water rinse unit  15 , beverage filling unit  20 , and cap attachment unit  16  are accommodated. The inside of the sterile chamber  13  is kept in a sterile state. 
     Furthermore, the sterile chamber  13  is divided into a bottle sterilization chamber  13   a  and a filling and seaming chamber  13   b . A chamber wall  13   c  is provided between the bottle sterilization chamber  13   a  and the filling and seaming chamber  13   b , and the bottle sterilization chamber  13   a  and the filling and seaming chamber  13   b  are separated from each other with the chamber wall  13   c  interposed between them. Inside the bottle sterilization chamber  13   a , the bottle sterilization unit  11 , the air rinse unit  14 , and the sterile water rinse unit  15  are disposed. Further, the beverage filling unit  20  and the cap attachment unit  16  are disposed inside the filling and seaming chamber  13   b.    
     (Beverage Aseptic Filling System) 
     Next, a configuration of the beverage preparation unit  40  and the beverage filling unit  20  of the beverage aseptic filling system  10  will be described using  FIGS. 2 and 3 .  FIG. 2  is a diagram showing the configuration of the beverage preparation unit  40  and the beverage filling unit  20 , and  FIG. 3  is a block diagram schematically showing the configuration shown in  FIG. 2 . Note that, in  FIG. 2 , a solid arrow indicates a process of the beverage (a raw material liquid, a sterilized beverage, a non-sterilized beverage, a sterilized carbonated beverage, a sterilized non-carbonated beverage, or a non-sterilized carbonated beverage), a dotted arrow indicates a process of gas (vapor, sterile carbon dioxide gas), and a dashed-dotted arrow indicates a process of water (sterile water). 
     As shown in  FIGS. 2 and 3 , the beverage preparation unit  40  includes a raw material liquid preparation unit  46 , a beverage sterilization unit  41 , a first aseptic tank  42 , a switching valve  47 , a beverage cooling unit  43 , a carbonated beverage production unit  44 , and a second aseptic tank  45 . 
     Further, the raw material liquid preparation unit  46 , the beverage sterilization unit  41 , the first aseptic tank  42 , the switching valve  47 , the beverage cooling unit  43 , the carbonated beverage production unit  44 , the second aseptic tank  45 , and the beverage filling unit  20  are connected by eight beverage supply system pipes  60   a  to  60   h . Beverages (raw material liquids, sterilized beverages, non-sterilized beverages, sterilized carbonated beverages, sterilized non-carbonated beverages, or non-sterilized carbonated beverages) sequentially pass through the inside of the eight beverage supply system pipes  60   a  to  60   h.    
     The raw material liquid preparation unit  46  prepares a raw material liquid from a beverage raw material. Here, the beverage raw material includes a sweetener, fruit juice, a plant extract, a dairy product, a flavor, a sourness modifier, vitamins, and the like. Further, the beverage may be prepared, for example, by mixing one or more of the above-mentioned beverage raw materials with beverage water at a predetermined ratio. 
     The raw material liquid preparation unit  46  is connected to the beverage sterilization unit  41  via the first beverage supply system pipe  60   a . A raw material liquid prepared in the raw material liquid preparation unit  46  is supplied to the beverage sterilization unit  41 . Then, the beverage sterilization unit  41  produces a sterilized beverage by sterilizing the supplied raw material liquid. The beverage sterilization unit  41  may be constituted by, for example, an ultra high-temperature (UHT) sterilizer. In this case, the raw material liquid is supplied from the raw material liquid preparation unit  46  to the beverage sterilization unit  41  constituted by a UHT sterilizer, and the raw material liquid is instantaneously heated and sterilized to produce a sterilized beverage. 
     Further, the raw material liquid preparation unit  46  is connected to the beverage cooling unit  43  by a first bypass filling line (third filling line)  50 C. The first bypass filling line  50 C is a supply path for directly feeding the raw material liquid from the raw material liquid preparation unit  46  to the beverage cooling unit  43  without using the beverage sterilization unit  41 , the first aseptic tank  42 , and the switching valve  47 . The first bypass filling line  50 C has a first beverage supply system bypass pipe  70   a  through which the beverage (raw material liquid) passes. Note that the first beverage supply system bypass pipe  70   a  may be provided with a pump (not shown) for feeding the raw material liquid from the raw material liquid preparation unit  46 . 
     For example, in a case where the beverage with which the bottle  30  is filled by the beverage filling unit  20  is a non-sterilized carbonated beverage, a non-sterilized beverage (raw material liquid) from the raw material liquid preparation unit  46  can be supplied to the beverage cooling unit  43  via the first bypass filling line  50 C. That is, the non-sterilized beverage (raw material liquid) prepared in the raw material liquid preparation unit  46  is directly sent to the beverage cooling unit  43 . Next, in the beverage cooling unit  43 , the raw material liquid is cooled to, for example, 1° C. or more and 5° C. or less, and then, in the carbonated beverage production unit  44 , carbon dioxide gas is injected into the beverage cooled by the beverage cooling unit  43 , and a carbonated beverage is manufactured. 
     Furthermore, the raw material liquid preparation unit  46  is connected to the first aseptic tank  42  by a second bypass filling line (fourth filling line)  50 D. The second bypass filling line  50 D is a supply path for directly feeding the raw material liquid from the raw material liquid preparation unit  46  to the first aseptic tank  42  without using the beverage sterilization unit  41 . The second bypass filling line  50 D has a second beverage supply system bypass pipe  70   b  through which the beverage (raw material liquid) passes. Note that the second beverage supply system bypass pipe  70   b  may be provided with a pump (not shown) for feeding the raw material liquid from the raw material liquid preparation unit  46 . 
     For example, in a case where the beverage with which the bottle  30  is filled by the beverage filling unit  20  is a non-sterilized carbonated beverage, a non-sterilized beverage (raw material liquid) from the raw material liquid preparation unit  46  can be supplied to the first aseptic tank  42  via the second bypass filling line  50 D. That is, the non-sterilized beverage (raw material liquid) prepared in the raw material liquid preparation unit  46  is directly sent to the first aseptic tank  42 . Such non-sterilized carbonated beverages include a carbonated beverage which does not require sterilization, such as soda and cola. 
     Note that, in the present embodiment, although both the first bypass filling line  50 C and the second bypass filling line  50 D are provided, the present invention is not limited to this configuration, and the configuration may be such that only either one of the first bypass filling line  50 C and the second bypass filling line  50 D is provided. 
     The beverage sterilization unit  41  is connected to the first aseptic tank  42  via the second beverage supply system pipe  60   b . The first aseptic tank  42  is supplied with the sterilized beverage sterilized in the beverage sterilization unit  41 . Alternatively, the non-sterilized beverage from the second bypass filling line  50 D is supplied to the first aseptic tank  42  without passing through the beverage sterilization unit  41 . The first aseptic tank  42  temporarily stores the sterilized beverage sterilized by the beverage sterilization unit  41  or the non-sterilized beverage from the second bypass filling line  50 D. Sterile air is supplied from an aseptic air supply unit (not shown) to the first aseptic tank  42 , and the first aseptic tank  42  is filled with the sterile air. Note that the first aseptic tank  42  does not need to be provided, and the sterilized beverage from the beverage sterilization unit  41  or the non-sterilized beverage from the second bypass filling line  50 D may be directly supplied to the switching valve  47 . 
     The first aseptic tank  42  is connected to the switching valve  47  via the third beverage supply system pipe  60   c . The switching valve  47  is supplied with the sterilized beverage or the non-sterilized beverage from the first aseptic tank  42 . 
     The switching valve  47  feeds the sterilized beverage or non-sterilized beverage sent from the first aseptic tank  42  by switching between a first filling line  50 A used for both a carbonated beverage and a non-carbonated beverage and a second filling line  50 B exclusively used for a carbonated beverage. That is, the switching valve  47  supplies the sterilized beverage or non-sterilized beverage sent from the first aseptic tank  42  toward either one of the first filling line  50 A positioned on the beverage filling unit  20  side and the second filling line  50 B positioned on the beverage cooling unit  43  side selectively. As the switching valve  47 , for example, a valve manifold can be used. Further, the switching valve  47  may be controlled by a control signal from a control unit (not shown) of the beverage aseptic filling system  10  so that the first filling line  50 A and the second filling line  50 B can be switched to each other. Alternatively, the first filling line  50 A and the second filling line  50 B may be switched by manual operation of the switching valve  47 . 
     Furthermore, a return line (the eighth beverage supply system pipe  60   h ) from the second filling line  50 B is connected to the switching valve  47 . That is, in a case where the sterilized beverage or the non-sterilized beverage from the first aseptic tank  42  is supplied to the second filling line  50 B, the switching valve  47  also plays a role of supplying a sterilized carbonated beverage or a non-sterilized carbonated beverage from the second filling line  50 B (the eighth beverage supply system pipe  60   h ) to the beverage filling unit  20  side. However, the present invention is not limited to the above, and the configuration may be such that a separate valve is provided on a downstream side (the fourth beverage supply system pipe  60   d ) of the switching valve  47 , and the return line (the eighth beverage supply system pipe  60   h ) from the second filling line  50 B is connected to the separate valve. Alternatively, the return line (the eighth beverage supply system pipe  60   h ) from the second filling line  50 B may be directly connected to the beverage filling unit  20 . Note that the details of the first filling line  50 A and the second filling line  50 B will be described later. 
     An outlet on the second filling line  50 B side of the switching valve  47  is connected to the beverage cooling unit  43  via the fifth beverage supply system pipe  60   e . In a case where the switching valve  47  is switched to the second filling line  50 B side, the sterilized beverage or the non-sterilized beverage that is sterilized by the beverage sterilization unit  41  and sent from the first aseptic tank  42  is supplied to the beverage cooling unit  43 . Alternatively, the non-sterilized beverage from the first bypass filling line  50 C is supplied to the beverage cooling unit  43  without passing through the beverage sterilization unit  41 . The beverage cooling unit  43  cools the sterilized beverage or the non-sterilized beverage. The beverage cooling unit  43  has a cooling plate or a cooling shell and a tube. In the beverage cooling unit  43 , the sterilized beverage or non-sterilized beverage is cooled to, for example, 1° C. or more and 10° C. or less, preferably 1° C. or more and 5° C. or less. In this manner, the carbonated beverage production unit  44  facilitates dissolving of the carbon dioxide gas in the sterilized beverage or the non-sterilized beverage. 
     The beverage cooling unit  43  is connected to the carbonated beverage production unit  44  via the sixth beverage supply system pipe  60   f . The sterilized beverage or the non-sterilized beverage from the beverage cooling unit  43  is supplied to the carbonated beverage production unit  44 . 
     The carbonated beverage production unit  44  injects carbon dioxide gas into the sterilized beverage or the non-sterilized beverage cooled by the beverage cooling unit  43  to dissolve the carbon dioxide gas in the sterilized beverage or the non-sterilized beverage, so as to produce a sterilized carbonated beverage or a non-sterilized carbonated beverage. For the carbonated beverage production unit  44 , for example, a publicly-known mechanism, such as a carbonator, can be used. In the carbonated beverage production unit  44 , carbon dioxide gas is introduced into the sterilized beverage or non-sterilized beverage under high pressure, and a sterilized carbonated beverage or non-sterilized carbonated beverage in which the carbon dioxide gas is dissolved is produced. 
     The carbonated beverage production unit  44  is connected to the second aseptic tank  45  via the seventh beverage supply system pipe  60   g . The sterilized carbonated beverage or non-sterilized carbonated beverage from the carbonated beverage production unit  44  is supplied to the second aseptic tank  45 . 
     The second aseptic tank  45  temporarily stores the sterilized carbonated beverage or the non-sterilized carbonated beverage in which the carbon dioxide gas is dissolved in the carbonated beverage production unit  44 . Sterile carbon dioxide gas is supplied to the second aseptic tank  45 , and the second aseptic tank  45  is filled with the sterile carbon dioxide gas. By pressurizing the sterilized carbonated beverage or the non-sterilized carbonated beverage with sterile carbon dioxide gas, the carbon dioxide gas dissolved in the sterilized carbonated beverage or the non-sterilized carbonated beverage is prevented from being released into a gas phase. The second aseptic tank  45  is preferably pressurized at a pressure higher than a carbon dioxide gas pressure of the product standard. In this manner, a concentration of the carbon dioxide gas in the sterilized carbonated beverage or non-sterilized carbonated beverage is kept constant. Note that the second aseptic tank  45  does not need to be provided, and the sterilized carbonated beverage or non-sterilized carbonated beverage from the carbonated beverage production unit  44  may be directly supplied to the switching valve  47  or a filling head tank  75  of the beverage filling unit  20 . 
     The second aseptic tank  45  is connected to the switching valve  47  via the eighth beverage supply system pipe  60   h . The sterilized carbonated beverage or non-sterilized carbonated beverage from the second aseptic tank  45  is supplied to the switching valve  47 . Further, a filter  62  is interposed in the fourth beverage supply system pipe  60   d  between the switching valve  47  and the filling head tank  75  of the beverage filling unit  20 . The filter  62  filters out impurities, foreign matters, and the like contained in the beverage sent from the switching valve  47  to the filling head tank  75 . Note that the filter  62  may be provided anywhere on the pipe up to the tip of a filling valve. 
     The filling head tank (buffer tank)  75  is disposed in an upper portion of the beverage filling unit  20 . The filling head tank  75  is filled with a beverage. In a case where the inside of the filling head tank  75  is filled with a sterilized carbonated beverage or a non-sterilized carbonated beverage, the filling head tank  75  is supplied with carbon dioxide gas in a sterile state. By pressurizing the sterilized carbonated beverage or the non-sterilized carbonated beverage with the sterile carbon dioxide gas, the carbon dioxide gas dissolved in the sterilized carbonated beverage or the non-sterilized carbonated beverage is prevented from being released into a gas phase. The filling head tank  75  is preferably pressurized at a pressure higher than a carbon dioxide gas pressure of the product standard. In this manner, a concentration of the carbon dioxide gas in the carbonated beverage in the filling head tank  75  is kept constant. 
     In the beverage filling unit  20 , the bottle  30  in an empty state is filled with the beverage with which the filling head tank  75  is filled. The beverage filling unit  20  has a convey wheel  71  that rotates. While the convey wheel  71  rotates (revolves) a plurality of the bottles  30 , the inside of the bottles  30  is filled with the beverage. Further, a plurality of filling nozzles  72  is disposed along an outer circumference of the convey wheel  71 . One of the bottle  30  is attached to each of the filling nozzles  72 , and the filling nozzle  72  injects the beverage into the bottle  30 . As the filling nozzle  72 , a publicly-known one can be used (for example, JP 4674743 B2). A beverage supply line  73  and a gas supply line  74  are connected to the filling nozzle  72 . Among the above, the beverage supply line  73  has one end connected to the filling head tank  75  filled with the beverage, and communicates with the inside of the bottle  30  at the other end. Then, the beverage supplied from the filling head tank  75  passes through the beverage supply line  73  and is injected into the bottle  30 . Further, the gas supply line  74  has one end connected to the filling head tank  75 , and communicates with the inside of the bottle  30  at the other end. 
     In a case where a bottle is to be filled with a sterilized carbonated beverage or a non-sterilized carbonated beverage, a counter pressure gas made from sterile carbon dioxide gas supplied from the filling head tank  75  passes through the gas supply line  74  and is put into the inside of the bottle  30 . Furthermore, separately from the gas supply line  74 , a snift line (not shown) is connected to each filling valve (not shown), and the gas inside the bottle  30  can be discharged through the snift line. The snift line of each filling valve is connected by a manifold, and has the tip that is opened into a filler in the sterile chamber  13 . In this manner, the gas in the bottle  30  can be discharged into the filler which is sterile space without contamination of bacteria. Note that, when a non-sterilized beverage is produced, a product liquid route, an air route, a carbon dioxide gas route, and the like do not need to be sterilized (sterilization), but may be sterilized. 
     The convey wheel  71  and the filling nozzle  72  are covered with a cover  76 . A rotary joint (rotating machine)  77  is attached to the top of the cover  76 . The rotary joint (the convey wheel  71 , the filling nozzle  72 , and the like) and a non-rotating body (the cover  76  and the like) are sealed in a sterile state by the rotary joint  77 . The rotary joint  77  is connected to a sterilizing gas supply unit  64  for pipe sterilization and a sterile air supply unit  65 . Valves  66  and  67  are provided in a supply pipe from the sterilizing gas supply unit  64  and a supply pipe from the sterile air supply unit  65 , respectively. The sterilizing gas supplied from the sterilizing gas supply unit  64  includes, for example, hydrogen peroxide gas and steam. The sterile air supply unit  65  supplies sterile air toward the rotary joint  77  after the supply pipe is sterilized by the sterilizing gas from the sterilizing gas supply unit  64 . The sterile air from the sterile air supply unit  65  is used for a mechanical seal of the rotary joint  77 . As described above, by supplying sterile air to the space surrounding a boundary surface of the mechanical seal, it is possible to prevent bacteria and microorganisms from the outside from being mixed into the beverage through the boundary surface. Note that, when a non-sterilized beverage is produced, the rotary joint  77  does not need to be sterilized (sterilization), but may be sterilized. 
     As described above, the raw material liquid preparation unit  46 , the beverage sterilization unit  41 , the first aseptic tank  42 , the switching valve  47 , the beverage cooling unit  43 , the carbonated beverage production unit  44 , the second aseptic tank  45 , and the beverage filling unit  20  are connected by the eight beverage supply system pipes  60   a  to  60   h . Beverages pass sequentially through the inside of the eight beverage supply system pipes  60   a  to  60   h . In this case, the sterilization degree of the inside of the switching valve  47 , the beverage cooling unit  43 , the carbonated beverage production unit  44 , the beverage filling unit  20 , and the seven beverage supply system pipes  60   b  to  60   h  is higher than the sterilization degree of the sterilized beverage after sterilization in the beverage sterilization unit  41 . In this manner, in a process after the beverage sterilization unit  41 , the sterilization degree of the beverage can be maintained to be higher than the sterilization degree of the sterilized beverage after sterilization in the beverage sterilization unit  41 . As a result, even in a case where the bottle  30  is filled with a beverage containing a component derived from an animal or a plant, such as fruit juice and a milk component, it is possible to reliably prevent proliferation of mold, yeast, and other microorganisms in the beverage after filling. 
     Next, the first filling line  50 A and the second filling line  50 B described above will be further described. 
     As described above, the first filling line  50 A is interposed between the switching valve  47  and the beverage filling unit  20 . In this case, the first filling line  50 A includes the fourth beverage supply system pipe  60   d , and the filter  62  is disposed in the fourth beverage supply system pipe  60   d  that constitutes the first filling line  50 A. The sterilized carbonated beverage, non-sterilized carbonated beverage, or sterilized non-carbonated beverage from the switching valve  47  pass through the first filling line  50 A. Specifically, in a case where the beverage with which the bottle  30  is filled by the beverage filling unit  20  is a non-carbonated beverage, the switching valve  47  directly connects the third beverage supply system pipe  60   c  and the fourth beverage supply system pipe  60   d . In this case, the sterilized non-carbonated beverage consisting of the sterilized beverage from the switching valve  47  is supplied to the beverage filling unit  20  via the first filling line  50 A without passing through the second filling line  50 B. On the other hand, in a case where the beverage with which the bottle  30  is filled by the beverage filling unit  20  is a sterilized carbonated beverage or a non-sterilized carbonated beverage, the switching valve  47  connects the third beverage supply system pipe  60   c  and the fifth beverage supply system pipe  60   e , and also connects the eighth beverage supply system pipe  60   h  and the fourth beverage supply system pipe  60   d . In this case, the sterilized beverage or the non-sterilized beverage sent from the switching valve  47  to the second filling line  50 B becomes a sterilized carbonated beverage or a non-sterilized carbonated beverage in the carbonated beverage production unit  44 . This sterilized carbonated beverage or non-sterilized carbonated beverage passes through the switching valve  47  again and is supplied to the beverage filling unit  20  via the first filling line  50 A. 
     Further, the second filling line  50 B is configured in a loop, and both ends of the loop are connected to the switching valve  47 . The second filling line  50 B includes the four beverage supply system pipes  60   e  to  60   h . A beverage cooling unit  43 , the carbonated beverage production unit  44 , and the second aseptic tank  45  are disposed in the second filling line  50 B. 
     Note that, for a channel through which a beverage passes in the beverage filling unit  20  and the beverage preparation unit  40 , cleaning in place (CIP) processing is performed periodically or at the time of switching a type of a beverage, and sterilizing in place (SIP) processing is preferably further performed. In the CIP processing, for example, a cleaning solution obtained by adding an alkaline agent, such as caustic soda, to water is caused to flow through a channel from the inside of a pipeline of a path for supplying the beverage raw material to the raw material liquid preparation unit  46  to the filling nozzle  72  of the beverage filling unit  20 , and then a cleaning solution obtained by adding an acidic agent to water is caused to flow. In this manner, a residue and the like of a previous beverage adhering in a channel through which a beverage passes are removed. Further, the SIP processing is processing for sterilizing the inside of a channel through which the beverage passes in advance before the filling operation of the beverage is performed, and, for example, heating steam or hot water is caused to flow into the channel cleaned by the CIP. In this manner, the inside of the channel through which the beverage passes is sterilized and becomes in a sterile state. 
     The degree of sterilization of the channel through which the beverage of the beverage filling unit  20  and the beverage preparation unit  40  passes may be controlled by an F value. For example, while heating steam or hot water is caused to flow through the channel of the beverage filling unit  20  and the beverage preparation unit  40 , the temperature may be measured by temperature sensors disposed at various places in the channel where temperature does not easily rise. Then, when the time in which the temperature from each temperature sensor reaches a predetermined temperature becomes equal to or longer than a predetermined time, the heating of the channel by the heating steam or the like may be finished. Here, the F value is a heating time required to kill all bacteria when the bacteria are heated for a certain period of time, and is indicated by a lethal time of the bacteria at 121.1° C., and is calculated by the equation below.
 
 F=∫   t     0     t     1   10 T−T     r     )/Z   dt   Equation 1
 
(where T is an optional sterilization temperature (° C.), 10{circumflex over ( )}{(T−Tr)/Z} is a lethality at the optional sterilization temperature T, Tr is a reference temperature (° C.), and Z is a Z value (° C.).)
 
     (Beverage filling method) 
     Next, a beverage filling method using the above-described beverage aseptic filling system  10  ( FIG. 1 ) will be described. Note that, in the description below, a filling method at a normal time, that is, a beverage filling method in which the bottle  30  is filled with a beverage to produce the product bottle  35  will be described. 
     First, a plurality of the empty bottles  30  is sequentially fed from the outside of the beverage aseptic filling system  10  to the bottle feeding portion  21 . The bottle  30  is sent from the bottle feeding portion  21  to the bottle sterilization unit  11  by the convey wheel  12  (container feeding process). 
     Next, in the bottle sterilization unit  11 , the bottle  30  is sterilized using a hydrogen peroxide aqueous solution as a disinfectant (sterilization process). At this time, the hydrogen peroxide aqueous solution is gas or mist which is obtained by temporarily vaporizing and then condensing the hydrogen peroxide aqueous solution having a concentration of 1% by weight or more, preferably 35% by weight, and the gas or mist is supplied toward the bottle  30 . 
     Subsequently, the bottle  30  is sent to the air rinse unit  14  by the convey wheel  12 , and sterile heated air or room temperature air is supplied in the air rinse unit  14 , whereby foreign matter, hydrogen peroxide, and the like are removed from the bottle  30  while hydrogen peroxide is activated. Subsequently, the bottle  30  is conveyed to the sterile water rinse unit  15  by the convey wheel  12 . In the sterile water rinse unit  15 , cleaning with sterile water at 15° C. or more and 85° C. or less is performed (rinsing process). Specifically, sterile water at 15° C. or more and 85° C. or less is supplied into the bottle  30  at a flow rate of 5 L/min or more and 15 L/min or less. At this time, it is preferable that the bottle  30  take an inverted attitude, and the sterile water is supplied into the bottle  30  through the downwardly opened mouth, and flows out of the bottle  30  from the mouth. With this sterile water, hydrogen peroxide adhering to the bottle  30  is washed off, and foreign matter is removed. Note that, the process in which sterile water is supplied into the bottle  30  does not need to be provided. 
     Subsequently, the bottle  30  is conveyed to the beverage filling unit  20  by the convey wheel  12 . In the beverage filling unit  20 , while the bottle  30  is rotated (revolution), the bottle  30  is filled with the beverage (sterilized carbonated beverage, non-sterilized carbonated beverage or sterilized non-carbonated beverage) from the mouth of the bottle  30  (filling process). In a case where the beverage to be filled with is a sterilized carbonated beverage or a non-sterilized carbonated beverage, in the beverage filling unit  20 , the sterilized bottle  30  is filled with the sterilized carbonated beverage or the non-sterilized carbonated beverage prepared in advance by the beverage preparation unit  40  at a filling temperature of 1° C. or more and 40° C. or less, preferably 5° C. or more and 10° C. or less. On the other hand, in a case where the beverage to be filled with is a sterilized non-carbonated beverage, in the beverage filling unit  20 , the sterilized bottle  30  is filled with the sterilized non-carbonated beverage prepared in advance by the beverage preparation unit  40  at a filling temperature of 1° C. or more and 40° C. or less, preferably 10° C. or more and 30° C. or less. 
     Next, processes of producing a beverage in the beverage preparation unit  40  and supplying the beverage to the beverage filling unit  20  will be described with reference to  FIGS. 2 and 3 . Hereinafter, a case of producing a sterilized carbonated beverage, a case of producing a non-sterilized carbonated beverage, and a case of producing a sterilized non-carbonated beverage will be described in this order. 
     (Case of Sterilized Carbonated Beverage) 
     First, a case where a sterilized carbonated beverage is produced by the beverage preparation unit  40  and the bottle  30  is filled with the sterilized carbonated beverage by the beverage filling unit  20  will be described. 
     First, in the raw material liquid preparation unit  46 , the raw material liquid is prepared from the beverage raw material. Next, for example, in the beverage sterilization unit  41  formed of an ultra-high temperature (UHT) sterilizer, the raw material liquid sent from the raw material liquid preparation unit  46  is sterilized, so that a sterilized beverage is produced (sterilization process). During this time, the raw material liquid is supplied from the raw material liquid preparation unit  46  to the beverage sterilization unit  41 , and the raw material liquid is instantaneously heated and sterilized to obtain a sterilized beverage. 
     The sterilized beverage sterilized by the beverage sterilization unit  41  is sent to the first aseptic tank  42 , and temporarily stored in the first aseptic tank  42  (first storage process). Next, the sterilized beverage from the first aseptic tank  42  is sent to the beverage cooling unit  43  via the switching valve  47 . Note that the switching valve  47  is switched in advance so as to send the sterilized beverage to the second filling line  50 B side. Next, in the beverage cooling unit  43 , the sterilized beverage produced in the beverage sterilization unit  41  is cooled to, for example, 1° C. or more and 5° C. or less (cooling process). 
     The sterilized beverage cooled by the beverage cooling unit  43  is sent to a carbonated beverage production unit  44  such as a carbonator. In the carbonated beverage production unit  44 , carbon dioxide gas is injected into the sterilized beverage cooled by the beverage cooling unit  43 , and a sterilized carbonated beverage is produced (carbonated beverage producing process). 
     Next, the sterilized carbonated beverage from the carbonated beverage production unit  44  is sent to the second aseptic tank  45 . The sterilized carbonated beverage sent to the second aseptic tank  45  is temporarily stored in the second aseptic tank  45  (second storage process). Next, the sterilized carbonated beverage from the second aseptic tank  45  is sent to the first filling line  50 A side via the switching valve  47  and is fed to the filling head tank  75  of the beverage filling unit  20 . The sterilized carbonated beverage sent to the filling head tank  75  is temporarily stored in the filling head tank  75  (third storage process). 
     Note that, when the beverage (raw material liquid, sterilized beverage, or sterilized carbonated beverage) is sent from the raw material liquid preparation unit  46  to the beverage filling unit  20  via the beverage sterilization unit  41 , the first aseptic tank  42 , the switching valve  47 , the beverage cooling unit  43 , the carbonated beverage production unit  44 , the second aseptic tank  45 , and the switching valve  47  sequentially, the beverage passes through the eight beverage supply system pipes  60   a  to  60   h  sequentially. 
     After the above, in the beverage filling unit  20 , the bottle  30  in an empty state is filled with the sterilized carbonated beverage stored in the filling head tank  75 . 
     During this time, first in the beverage filling unit  20 , the filling nozzles  72  is closely adhere to the mouth of the bottle  30 , so that the gas supply line  74  and the bottle  30  communicate with each other. Next, sterile carbon dioxide gas for counter pressure is supplied from the filling head tank  75  to the inside of the bottle  30  through the gas supply line  74 . Thus, an inner pressure of the bottle  30  is made higher than an atmospheric pressure, and the inner pressure of the bottle  30  is the same pressure as the inner pressure of the filling head tank  75 . 
     Next, the inside of the bottle  30  is filled with a sterilized carbonated beverage from the beverage supply line  73  (filling process). In this case, the sterilized carbonated beverage passes through the beverage supply line  73  from the filling head tank  75 , and is injected into the inside of the bottle  30 . 
     Next, the supply of the sterilized carbonated beverage from the beverage supply line  73  is stopped. Next, a snift line (not shown) is opened, and gas inside the bottle  30  is exhausted from the snift line. In this manner, the pressure inside the bottle  30  becomes equal to the atmospheric pressure, and the filling of the bottle  30  with the sterilized carbonated beverage is completed. 
     (Case of Non-Sterilized Carbonated Beverage) 
     Next, a case where a non-sterilized carbonated beverage is produced by the beverage preparation unit  40  and the bottle  30  is filled with the non-sterilized carbonated beverage by the beverage filling unit  20  will be described. 
     First, in a similar manner as in the case of producing a sterilized carbonated beverage, the raw material liquid preparation unit  46  prepares the raw material liquid (non-sterilized beverage) from the beverage raw material. Next, the non-sterilized beverage prepared in the raw material liquid preparation unit  46  is sent to the beverage cooling unit  43  via the first bypass filling line  50 C. 
     Alternatively, the non-sterilized beverage is sent from the raw material liquid preparation unit  46  to the first aseptic tank  42  via the second bypass filling line  50 D, and temporarily stored in the first aseptic tank  42  (first storage process). After the above, the non-sterilized beverage is sent from the first aseptic tank  42  to the beverage cooling unit  43 . 
     Next, the non-sterilized beverage is cooled to, for example, 1° C. or more and 10° C. or less in the beverage cooling unit  43  (cooling process). Next, the non-sterilized beverage is sent to the carbonated beverage production unit  44  such as a carbonator. In the carbonated beverage production unit  44 , carbon dioxide gas is injected into the non-sterilized beverage cooled by the beverage cooling unit  43 , and a non-sterilized carbonated beverage is produced (carbonated beverage producing process). 
     Next, the non-sterilized carbonated beverage from the carbonated beverage production unit  44  is sent to the second aseptic tank  45 . The non-sterilized carbonated beverage sent to the second aseptic tank  45  is temporarily stored in the second aseptic tank  45  (second storage process). Next, the non-sterilized carbonated beverage from the second aseptic tank  45  is sent to the first filling line  50 A side via the switching valve  47  and is fed to the filling head tank  75  of the beverage filling unit  20 . The non-sterilized carbonated beverage sent to the filling head tank  75  is temporarily stored in the filling head tank  75  (third storage process). 
     After the above, like the case of the sterilized carbonated beverage, in the beverage filling unit  20 , the bottle  30  in an empty state is filled with the non-sterilized carbonated beverage stored in the filling head tank  75  (filling process). 
     (Case of Sterilized Non-Carbonated Beverage) 
     Next, a case where a sterilized non-carbonated beverage is produced by the beverage preparation unit  40  and the bottle  30  is filled with the sterilized non-carbonated beverage by the beverage filling unit  20  will be described. 
     First, in a similar manner as in the case of producing a sterilized carbonated beverage, the raw material liquid preparation unit  46  prepares the raw material liquid from the beverage raw material. Next, the raw material liquid is sterilized in the beverage sterilization unit  41  to produce a sterilized beverage (sterilization process). 
     The sterilized beverage sterilized by the beverage sterilization unit  41  is sent to the first aseptic tank  42 , and temporarily stored in the first aseptic tank  42  (first storage process). Next, the sterilized beverage (sterilized non-carbonated beverage) from the first aseptic tank  42  is sent to the first filling line  50 A via the switching valve  47 . Note that the switching valve  47  is switched in advance so as to send the sterilized beverage (sterilized non-carbonated beverage) to the first filling line  50 A side. 
     Next, the sterilized non-carbonated beverage from the switching valve  47  is sent to the first filling line  50 A side, and is fed to the filling head tank  75  of the beverage filling unit  20 . The sterilized non-carbonated beverage sent to the filling head tank  75  is temporarily stored in the filling head tank  75  (third storage process). 
     Note that, the beverage (raw material liquid, sterilized beverage, or sterilized non-carbonated beverage) is sent from the raw material liquid preparation unit  46  to the beverage filling unit  20  via the beverage sterilization unit  41 , the first aseptic tank  42 , and the switching valve  47  sequentially, and, at this time, the beverage passes through the four beverage supply system pipes  60   a  to  60   d  sequentially. 
     After the above, in the beverage filling unit  20 , the empty bottle  30  in an empty state is filled with the sterilized non-carbonated beverage stored in the filling head tank  75 . 
     During this time, in the beverage filling unit  20 , the inside of the bottle  30  is filled with the sterilized non-carbonated beverage from the beverage supply line  73  (filling process). In this case, the sterilized non-carbonated beverage is injected into the inside of the bottle  30  from the filling head tank  75  through the beverage supply line  73 . 
     Referring back to  FIG. 1 , the bottle  30  filled with the sterilized carbonated beverage, non-sterilized carbonated beverage, or sterilized non-carbonated beverage in the beverage filling unit  20  in the above manner is conveyed by the convey wheel  12  to the cap attachment unit  16 . 
     On the other hand, the cap  33  is previously sterilized by the cap sterilization unit  25  (cap sterilization process). The cap  33  sterilized by the cap sterilization unit  25  is attached to the mouth of the bottle  30  conveyed from the beverage filling unit  20  in the cap attachment unit  16 . In this manner, the product bottle  35  which has the bottle  30  and the cap  33  is obtained (cap attachment process). 
     After the above, the product bottle  35  is conveyed from the cap attachment unit  16  to the product bottle conveyor  22  and is carried toward the outside of the beverage aseptic filling system  10 . 
     Note that the processes from the sterilization process to the cap attachment process are performed in a sterile atmosphere, that is, in a sterile environment, surrounded by the sterile chamber  13 . After the sterilization treatment, sterile air of positive pressure is supplied into the sterile chamber  13  so that the sterile air is always blown toward the outside of the sterile chamber  13 . 
     Note that a production (conveying) speed of the bottle  30  in the beverage aseptic filling system  10  is preferably 100 bpm or more and 1500 bpm or less. Here, bottle per minute (bpm) refers to a conveying speed of the bottle  30  per minute. 
     As described above, according to the present embodiment, the switching valve  47  selectively supplies the beverage toward either one of the first filling line  50 A and the second filling line  50 B. This allows the bottle  30  to be filled with both carbonated and non-carbonated beverages using the same beverage aseptic filling system  10 . 
     Further, according to the present embodiment, when the beverage with which the bottle  30  is filled by the beverage filling unit  20  is a carbonated beverage, the beverage from the switching valve  47  is supplied to the beverage filling unit  20  via the second filling line  50 B. On the other hand, in a case where the beverage with which the bottle  30  is filled by the beverage filling unit  20  is a non-carbonated beverage, the beverage from the switching valve  47  is supplied to the beverage filling unit  20  via the first filling line  50 A without passing through the second filling line  50 B. That is, when the bottle  30  is filled with a non-carbonated beverage, the beverage does not pass through the second filling line  50 B. Accordingly, there is no need to clean and sterilize the second filling line  50 B by, for example, CIP treatment and the like, and the work can be simplified. 
     Further, according to the present embodiment, the second filling line  50 B is configured in a loop shape, and the carbonated beverage from the second filling line  50 B is sent to the first filling line  50 A via the switching valve  47 . In this manner, it is possible to switch between the filling of the carbonated beverage and the filling of the non-carbonated beverage using only a single one of the switching valve  47 , and a circulation channel of the beverage can be simplified. 
     Further, according to the present embodiment, the raw material liquid preparation unit  46  and the beverage cooling unit  43  are bypass-connected by the first bypass filling line (third filling line)  50 C not via the beverage sterilization unit  41 . In this manner, in a case where the beverage with which the bottle  30  is filled by the beverage filling unit  20  is a non-sterilized carbonated beverage, the beverage (raw material liquid) from the raw material liquid preparation unit  46  can be supplied to the beverage cooling unit  43  via the first bypass filling line  50 C. Further, the same beverage aseptic filling system  10  can be used to fill the bottle  30  with both the sterilized carbonated beverage for which sterilization treatment is performed and the non-sterilized carbonated beverage that does not require sterilization. That is, when the bottle  30  is filled with a sterilized carbonated beverage, the beverage sterilization unit  41  is used to sterilize the raw material liquid, and the sterilized beverage is sent to the beverage cooling unit  43 . On the other hand, in a case where the bottle  30  is filled with the non-sterilized carbonated beverage, the raw material liquid is sent from the first bypass filling line  50 C to the beverage cooling unit  43  without using the beverage sterilization unit  41 . In this manner, in a case where a bottle is filled with the non-sterilized carbonated beverage, the beverage does not pass through the beverage sterilization unit  41  and the first aseptic tank  42 . Accordingly, the beverage sterilization unit  41  and the first aseptic tank  42  do not need to be cleaned or sterilized by, for example, the CIP treatment, and the work can be simplified. Further, energy in the beverage sterilization unit  41  and the first aseptic tank  42  can be saved. 
     Further, according to the present embodiment, the first aseptic tank  42  for storing the sterilized beverage from the beverage sterilization unit  41  or the non-sterilized beverage not passing through the beverage sterilization unit  41  is provided between the beverage sterilization unit  41  and the switching valve  47 . In this manner, the sterilized beverage sterilized by the beverage sterilization unit  41  or the non-sterilized beverage that does not require sterilization can be temporarily stored in the first aseptic tank  42 , which can serve as a buffer. Specifically, it is possible to adjust a difference in the amount of the sterilized beverage or the non-sterilized beverage caused by a difference in the processing speed between the beverage sterilization unit  41  and the beverage filling unit  20  or the beverage cooling unit  43 . 
     Further, according to the present embodiment, the raw material liquid preparation unit  46  and the first aseptic tank  42  are connected by the second bypass filling line  50 D not via the beverage sterilization unit  41 . In this manner, the same beverage aseptic filling system  10  can be used to fill the bottle  30  with both the sterilized carbonated beverage for which sterilization treatment is performed and the non-sterilized carbonated beverage that does not require sterilization. In this case, since the beverage does not pass through the beverage sterilization unit  41 , there is no need to clean or sterilize the beverage sterilization unit  41  by, for example, CIP treatment, and the work can be simplified. Further, energy in the beverage sterilization unit  41  can be saved. 
     Further, according to the present embodiment, the second aseptic tank  45  for storing the carbonated beverage from the carbonated beverage production unit  44  is provided between the carbonated beverage production unit  44  and the beverage filling unit  20 . In this manner, the carbonated beverage produced by the carbonated beverage production unit  44  can be temporarily stored in the second aseptic tank  45 , which can serve as a buffer. Specifically, it is possible to adjust a difference in the amount of the carbonated beverage caused by a difference in the processing speed between the carbonated beverage production unit  44  and the beverage filling unit  20 . 
     Note that, in the above, the container sterilization of the bottle  30 , the preform, the cap  33 , and the like is described by exemplifying the case of using a disinfectant made from hydrogen peroxide. However, the present invention is not limited to the above, and sterilization may be performed by a disinfectant, such as peracetic acid, and an electron beam. Further, when the non-sterilized beverage is produced, the non-sterilized beverage may be produced in an aseptic environment after the inside of the chamber of the beverage filling unit (aseptic filling machine)  20  is cleaned and sterilized. This allows for the production of a beverage in a more hygienic environment than normal.