Patent Publication Number: US-2022218143-A1

Title: Bag for producing baby food, device for controlling the temperature of baby food, and method for producing baby food

Description:
The present invention relates to a bag for producing baby food, specifically baby milk or baby puree, a device for tempering baby food and a process for producing baby food. 
     In order to have baby food available on the go, parents usually need to carry a variety of utensils to be able to make baby food for the baby as needed. Usually, a thermos of boiled water is taken along, and the water must be cooled to a comfortable drinking temperature before use. In some cases, the boiled water has already cooled down too far, so that it is too cold for the baby. Alternatively, bottles of special baby water or pre-made milk can be taken, but these are not heated to a drinking temperature. In all cases, it is difficult or not possible to have the liquid at the appropriate drinking temperature for the baby. 
     Furthermore, thermos flasks and plastic containers in which the powder for baby food is carried represent open systems. There is therefore a risk of contamination. In other words, both the water and the powder for the baby food can only be stored in these systems to a limited extent. 
     Specifically, prefabricated milk does not allow free dosage. 
     In addition, parents must carry baby bottles with nipple attachments and a baby food concentrate, which when mixed with the water is the actual baby food. However, the baby bottles and nipple attachments must be cleaned and sterilized after use. Sterilization requires a stove specifically, for example to boil the bottles. However, a stove is usually difficult to find when travelling. In addition, cleaning and sterilizing is time-consuming. 
     All this means a lot of utensils for outings and especially for longer trips that parents have to carry with them and a baby food production process that regularly fails to reach the optimal drinking temperature. 
     This problem is solved by the independent claims. Preferred embodiments are the subject of the dependent claims. 
     According to a first aspect, the problem is solved by a bag for producing baby food, specifically baby milk or baby puree, comprising a first chamber and a second chamber separated from one another by a separating region, 
     the first chamber being designed to contain a baby food concentrate, 
     wherein the second chamber is designed to receive a fluid, 
     wherein the first and second chamber are arranged along the longitudinal direction of the bag; 
     wherein the separating region can be at least partially opened by applying force to the bag in order to be able to mix the components contained in the first and second chambers to forma a baby food; 
     wherein the bag has a first opening at a first end adjacent to the first chamber and a second opening at a second end adjacent to the second chamber, and 
     wherein the first opening can be closed by means of a first closure and the second opening can be closed by means of a second closure. 
     The “bag” represents a flexible container, which is preferably made of plastic, such as polyethylene. A composite film of polyethylene and polyamide is particularly preferred. Additional thermally conductive particles, such as aluminum and/or copper particles, may be incorporated into the bag material to provide improved or faster heating of the baby food. Specifically, the bag is designed for single use and can be disposed of after use. 
     The bag contains two chambers which are separated from one another by a separating region so that the baby food concentrate and the fluid cannot come into contact with each other and be mixed before use. 
     Specifically, the chambers are arranged along the longitudinal direction with the opposite ends of the bag being open. In this regard, a first opening is adjacent to the first chamber and a second opening is adjacent to the second chamber. Via the openings, the chambers can be filled (e.g. by the parents) with contents (e.g. the fluid and the baby food concentrate) in advance (e.g. at home) and subsequently closed by means of the first and second closures, respectively. This means that the baby food is already pre-portioned and can be mixed if necessary. Since the individual components of the baby food are stored separately, the baby food or the contents of the bag have a longer shelf life. 
     For mixing, the user applies force to the bag to at least partially break open or open the separating region so that the individual components or the content(s) of the bag can mix and the baby food can be produced. By shaking the bag, an optimal mixture can be produced. 
     Preferably, a first connecting element is arranged at the first opening and a second connecting element is arranged at the second opening, wherein the first connecting element can be connected to the first closure and the second connecting element can be connected to the second closure. 
     In contrast to the bag, the connecting element is preferably a rigid element so that the closure can be securely connected to the connecting element. Specifically, a secure connection is intended to prevent leakage of the bag. 
     The connecting element is preferably welded to the bag. 
     Preferably, the connecting elements can be connected to the closures by means of a screw cap. 
     For this purpose, the connecting elements are rotationally symmetrical and have a thread on their outer surface which engages in a thread on the respective closure. By screwing the closure onto the connecting element, a secure connection can be made between the bag and the closure. 
     It is preferred that the first and/or second closure is a cover or a nipple. 
     A cover is suitable for closing the bag. During transport, both openings of the bag can therefore preferably be closed with a cover. However, it is also possible for the baby to drink the baby food directly from the bag. For this purpose, a cover can be replaced by a nipple. 
     Preferably, at least one magnet is arranged in or on the cover. 
     This magnet can be connected to another magnet in the bottom area of a tempering module described later, which is designed for tempering of the baby food. By means of said magnetic connection, the bag can be fixed in the tempering module. 
     It is preferred that the separating region is provided by means of a weld seam. 
     Preferably, the separating region is configured to be at least partially opened by pulling the bag substantially in the longitudinal direction. 
     As described above, the first and second chamber are arranged in the longitudinal direction and are separated from one another by the separating region. The separating region is designed in such a way that a simple pull on the bag in this longitudinal direction leads to an at least partial rupture or opening of the separating region. In this case, one end of the bag can be pulled in the longitudinal direction while the other end is merely held. However, the bag may also be pulled apart in the longitudinal direction. 
     It is further preferred that the separating region is designed as a folding edge, at which the bag (1) is folded by a large angle of up to 180°. 
     The folded edge may be formed alternatively or in addition to the sealing edge. Preferably, the bag is folded such that the first and second chamber are at least partially superimposed. The folded edge may be fixed by an adhesive tape. 
     Preferably, the first and second chamber are separated from one another by at least one clamp. 
     Further, the bag may be twisted in the separating region. 
     A twisting of the bag creates a separating region, whereby the twisted state can be fixed for example, by an adhesive tape. As soon as the separating region is supposed to be opened, the adhesive tape can be removed or torn so that the twist can be released. 
     Preferably, the bag is formed from a flexible tube. 
     In other words, the bag is tubular in shape, the tube preferably is being made in one piece. 
     According to another aspect of the present invention, the underlying problem is solved by a device for tempering baby food, specifically baby milk or baby puree, the device comprising: 
     a tempering module which is designed to receive a bag for baby food, preferably a bag according to one of the preceding claims; and 
     a connecting unit to which the tempering module can be connected, 
     wherein the tempering module comprises at least one heating element which is designed for tempering the baby food contained in the tempering module, 
     wherein the connecting unit comprises at least one rechargeable battery, which supplies the heating element with energy, and a control unit, which controls the heating process. 
     According to the aspect described above, the bag for baby food may be formed with at least two chambers. However, it is also possible for the bag to have only one chamber and one opening. Such a bag could contain breast milk or ready-made baby food. Specifically, the breast milk or ready-made baby food could be frozen in the bag and thawed or tempered to drinking or eating temperature in the tempering module. 
     The tempering module thus represents a receptacle in which a bag of baby food can be received in order to heat the baby food when required. 
     For mobile heating on the move, the tempering module can be connected to a connecting unit which has at least one rechargeable battery which supplies the heating element in the tempering module with energy. The heating process is thereby controlled by the control unit. 
     The device thus offers an easy tempering of baby food, which is stored in bags on the go. It is only necessary that the rechargeable battery is sufficiently charged. 
     Preferably, the tempering module has a rotationally symmetrical tempering module housing with a tempering module base surface and a tempering module insertion opening via which the bag can be inserted into the tempering module housing, and wherein the at least one heating element is arranged on an inner wall of the tempering module housing. 
     Preferably, the heating element is designed as a heating mat. The heating element can at least partially or completely overlap the inner wall of the tempering module housing. The heating element heats the inner wall of the tempering module housing, whereby heat is subsequently transferred from the inner wall of the tempering module housing to the bag which is inserted into the tempering module housing. A particularly fast tempering of the baby food can take place if the bag is at least partially in contact with the inner wall of the tempering module housing. The larger the contact surface, the faster the baby food can be heated. 
     The tempering module housing may include tempering module extension members that can be connected to one another in such a way that the height of the tempering module is individually adjustable. 
     In other words, the tempering module housing can have a modular structure. The individual tempering module extension elements are to be connected to each other in such a way that the desired height of the tempering module housing is obtained. For this purpose, the individual tempering module extension elements may be assembled and/or displaced relative to one another. 
     Preferably, the device further comprises a sterilization module for sterilizing baby accessories, specifically at least one baby pacifier or at least one nipple, can be connected to the connecting unit in order to carry out the sterilization process controlled by the control unit and to supply the sterilization module with energy from at least one rechargeable battery. 
     The sterilization module can be connected to the connecting unit in parallel with the tempering module. Alternatively, the connecting unit can be alternately connected to one of the modules. In this case, the connecting unit can be designed to be particularly space-saving. 
     With the additional option of sterilizing the reusable components, such as a baby nipple, or even a nipple, the device can additionally be used to perform on-the-go cleaning tasks on the baby accessories. Before the baby accessories are positioned in the sterilization module, the baby accessories can be easily cleaned under water or with a wet wipe. 
     It is preferred that the sterilization module comprises a sterilization module housing with a sterilization module base surface and a sterilization module insertion opening via which the baby accessories can be inserted into the sterilization module housing, wherein at least one UV lamp is arranged in the sterilization module housing, and wherein the sterilization module insertion opening can be closed by a sterilization module cover. 
     In order to distribute the radiation of the UV lamp in a particularly advantageous manner in the sterilization module housing, at least one UV mirror and/or at least one reflective surface can/could additionally be arranged in the sterilization module housing. 
     According to a still further aspect, the underlying problem is solved by a process for producing baby food, specifically puree, which comprises:
         providing a bag with a first chamber and a second chamber which are separated from one another by a separating region;   filling a baby food concentrate into the first chamber via a first opening in the bag which is formed adjacent to the first chamber;   filling a fluid into the second chamber via a second opening in the bag which is formed adjacent to the second chamber;   closing the first opening with a first closure and the second opening with a second closure;   applying force to the bag so that the separating region is at least partially opened and the components contained in the first and second chambers are mixed with one another to form baby food.       

     Preferably, applying force to the bag comprises pulling the bag in a longitudinal direction, opening at least one clamp, unfolding the bag, or releasing a twisted condition of the bag. 
     It is further preferred that closing the first and second openings comprises screwing on a cover. 
     Preferably, after the individual components have been mixed, a cover is replaced by a nipple. 
     Preferably, the process comprises the step of inserting the bag in which the mixed components are located into a tempering module via a tempering module insertion opening for tempering of the baby food. 
     Preferably, the bag is inserted into the tempering module such that a nipple positioned on the first or second opening of the bag or a connector element positioned on the first or second opening rests on an edge of the tempering module insertion opening to prevent the nipple or connector element from scovering into the tempering module. This allows the tempering module to be used as a holding device for the baby food. The parents or the baby itself hold the temperature control module, in which the bag with the temperature-controlled baby food is arranged. The baby&#39;s nipple protrudes from the tempering module so that the baby can simply drink its baby food. 
     Furthermore, the bag can be held in a stretched (not collapsed) position in the tempering module by the nipple. This avoids folds in the bag and the bag can lie against the inner wall of the tempering module housing in a particularly advantageous manner. This facilitates the heating as well as the emptying of the bag during the drinking process. 
     In order to connect the bag securely to the tempering module and to prevent it from slipping out during the drinking process, the nipple or the connecting element, which rests on the edge of the temperature control module, can be connected to the tempering module by means of a click mechanism. 
     It is further preferred that the closure of the bag, which is arranged adjacent a tempering module base surface when inserted into the temperature control module, includes at least one magnet which is connected to a magnet in the tempering module bottom area. 
     By such a magnetic connection, the opposite end of the bag, where a closure and not the nipple is located, is also stretched in the longitudinal direction towards the tempering module bottom area. This further positions the bag within the tempering module, such that the above benefits can be effected in an even more advantageous manner. In addition, the bag is prevented from falling out of the tempering module. 
    
    
     
       These and other objectives, features and advantages of the present invention will become clearer from a study of the following detailed description of preferred embodiments and the accompanying drawings. Further, it is noted that although embodiments are described separately, individual features of these embodiments may be combined to form additional embodiments. 
         FIG. 1 a   ) shows a sectional view of a bag for producing baby food along a longitudinal axis according to a preferred embodiment; 
         FIG. 1 b   ) show schematic drawings of bag openings which are closed with and c) alternative closures; 
         FIG. 1 d   ) show schematic drawings of bags with alternative separating regions; and e) 
         FIG. 2  shows the bag of figure la) before opening the separating region and after opening the separating region; 
         FIG. 3  shows a sectional view of a tempering module according to a preferred embodiment; 
         FIG. 4  shows a tempering process according to a preferred embodiment for tempering the baby food in the bag; 
         FIG. 5  shows different views of a connecting unit; and 
         FIG. 6  shows a sectional view of a sterilization module according to a preferred embodiment. 
     
    
    
       FIG. 1  shows a bag  1  for the production of baby food according to a preferred embodiment. For the production of baby food, various baby food concentrates from different manufacturers are commercially available, which, when mixed with water, produce the required baby food. The baby food concentrate is typically in powder form. Specifically, the baby food concentrate may be milk powder or a puree powder. The bag  1  is preferably made of plastic (for example polyethylene or a composite film of polyethylene and polyamide) substantially in the form of a tube. Specifically, the tube is made in one piece without seams. 
     The bag  1  has at least one first chamber  3  and a second chamber  5 , which are arranged along the longitudinal direction L.  FIG. 1  shows for this purpose a sectional view along the longitudinal direction L. The chambers  3 ,  5  are separated or separated from one another by a separating region  7 , the separating region  7  preferably having at least one weld seam. As shown in  FIG. 1 , the separating region  7  creates specifically a necking in the bag  1 . 
     The opposite or opposing ends of the bag  1  with respect to the longitudinal direction L have openings. Specifically, a first opening  11  is designed at a first end  9  of the bag  1  adjacent to the first chamber  3 , while a second opening  15  is designed at a second end  13  (opposite to the first end  9 ) of the bag  1  adjacent to the second chamber  5 . The openings  11 ,  15  may be of the same size or of different sizes. Specifically, the openings  11 ,  15  serve for filling the respective chamber  3 ,  5 . The first chamber  3  is designed to be filled with a baby food concentrate, whereas the second chamber  5  is designed to be filled with a fluid. The fluid may be, for example, water (specifically sterile water) which, when mixed with the baby food concentrate, produces a baby milk or a baby puree. Preferably, the bag  1  is filled in advance (for example, already at home) to provide a pre-portioned bag  1  for a later time (for example, on the go). 
     In order to close the chambers  3 ,  5  for transport, the individual openings  11 ,  15  in the bag  1  can be closed by means of corresponding closures. For this purpose, a first connecting element  17  may be provided at the first opening  11  and a second connecting element  19  may be provided at the second opening  15 . The connecting elements  17  and/or  19  can thereby be formed as circular elements, which are preferably made of plastic. Specifically, it is advantageous in this case if the connecting elements  17 ,  19 , in contrast to the bag  1  itself, are designed to be rigid or to have a higher rigidity. In order to connect the connecting elements  17 ,  19  to the bag  1 , the connecting elements  17 ,  19  can be welded to the bag  1 . 
     As shown in  FIG. 1 , the closure or closures may be in the form of covers  21 , each of which can be connected to the connecting elements  17 ,  19 . The covers  21  may be connected to the connecting elements by means of a hooking or clicking mechanism. Alternatively, the connecting elements  17 ,  19  and/or the covers  21  may have one or more sealing lips which, when in contact with the respective other element, have both a sealing and a fixing function.  FIG. 1 , on the other hand, shows a screw mechanism. On an outer surface  23  of the connecting element  17  or  19  and on an inner surface  25  of the cover  21  there is in each case, at least in some areas, a thread  27  which engages in one another or interacts with one another in the connecting process. 
     Specifically, the connecting element  17  or  19  can also be used to be connected to a dispenser which is designed, for example, to dispense a baby food concentrate into the first chamber  3 . Specifically, it is preferred that the bag  1  is compatible with a dispenser such as published in the publication WO 2017/121638 A1 and/or in the German patent application DE 10 2018 009 551, which are incorporated herein by reference in their entirety. The connecting element  17  and/or  19  may be connected to the dispenser directly herein or by means of an adapter. The amount of baby food concentrate may be manually adjusted at the dispenser. Alternatively, the dispenser dispenses predetermined or pre-portioned units to the bag  1 . However, the dispenser may also comprise a sensor that automatically detects a connected bag  1  and, in a complementary manner, the size of the bag  1 . Specifically, based on the size of the connected connecting element  17 ,  19  the dispenser could detect whether it is the powder chamber or water chamber. Depending on which chamber the dispenser detects, the dispenser then dispenses either water or powder. The size of the connected connecting element  17 ,  19  may thereby also provide information to the dispenser as to how much water or powder is to be dispensed. Alternatively, an RFID tag could be provided or incorporated in or on the connecting element  17 ,  19  for this purpose. Once the dispenser detects a bag  1 , a corresponding amount of a baby food concentrate can subsequently be dispensed automatically. This is also possible with respect to the second chamber  5  and the supply of a fluid. Thus, by being compatible with a dispenser, the chambers  3 ,  5  can be filled quickly and precisely. 
     Preferably, the bag size is such that between 50 ml and 300 ml of baby food can be produced. Particularly preferred is a size that allows 250 ml of baby food to be produced. Furthermore, the bag  1  may be folded in areas so that the chamber(s)  3 ,  5  are reduced in size. As required, the folding may be unfolded. The folded area may be fixed with an adhesive strip and/or a clamp. 
     However, the bag  1  may also be formed without connecting elements  17  and/or  19 . In order to close the openings  11  and/or  15  of the bag  1  for storage and transport, the openings  11  and/or  15  can be welded after the individual chambers have been filled. To do this, as shown in  FIG. 1 b   ), the desired opening  11 ,  15  is welded with a welding device  26  containing at least one welding wire  28 . This can be done by the user or the bag  1  is already filled in the manufacturing process and sealed by means of a welding device  26 . Furthermore, at least one sealing lip  30  may be formed at the respective openings  11  and/or  15 , which allows the corresponding chamber  3 ,  5  to be filled but prevents the filled element from escaping again. Once the chamber  3 ,  5  is filled, the sealing lip  30  can additionally be closed with a seal  32  to prevent the sealing lip ( 30 ) from spreading, as shown in  FIG. 1 c   ). Only when the seal  32  has been removed and the sealing lip  30  is spread, the mixed baby food can escape from the bag  1 . Alternatively, the openings may be closed by separate clamps. 
     If baby food is now required at a later time (e.g. while travelling, for example), only the separating region  7  can be at least partially opened. For this purpose, it is sufficient if force is applied to the bag  1  from the outside. If the separating region  7  is designed, for example, by a weld seam, the force is to be applied in such a way that the bag sides, which are connected to one another by the weld seam, at least partially separate from one another again as a result of the force applied. However, the bag sides themselves are not damaged in the process, so that leakage of the filled components is avoided. Once the separating region  7  has been opened, the filled components can be mixed together, so that subsequently the baby food is produced. Preferably, the bag  1  can be shaken. 
     The force to be applied may, for example, be applied by pushing on the bag  1  and/or by pulling the bag  1  substantially along the longitudinal direction L. 
     Alternatively, or in addition to a weld seam, the separating region  7  can also have at least one folded edge  34 , as shown in  FIG. 1 d   ). At the folded edge  34 , the bag  1  is folded in the separating region  7  by an angle of up to about 180°, preferably so that the first chamber  3  and the second chamber  5  lie substantially on top of each other. The folded state is specifically fixed by a fixing adhesive tape  36 , which is specifically arranged in the separating region  7  to fix the folded area. If the individual components are to be mixed to form baby food, the first chamber  3  and second chamber  5  can be unfolded so that the separating region  7  is opened. 
     Further, the separating region  7  between the first chamber  3  and the second chamber  5  may include a clamp that clamps the bag  1  in the separating region  7 . By opening the clamp, the separating region  7  is opened. 
     As a still further alternative, the separating region  7  may be formed by twisting the bag  1  in the separating region  7 . The twisted state of the bag  1  may be fixed by a seal  38  (e.g. adhesive tape). If the user pulls on the bag  1  substantially along the longitudinal direction L, the seal breaks and the twist of the bag  1  may be released, allowing the components contained in the bag  1  to mix. In addition to the twist, the bag  1  may be folded as described above, as shown in  FIG. 1 e   ). 
     Before or after opening the separating region  7 , the cover  21  on one side of the bag  1  can be replaced, specifically by a nipple  29 .  FIG. 2  shows on the left a state of the bag  1  in which the separating region  7  is not yet open, but the second opening  15  is no longer closed by a cover  21 , but is replaced by a nipple  29 . As soon as the separating region  7  is now open and the individual components in the bag  1  are mixed, the baby can thus consume the baby food directly from the bag  1 . To this end, a state of the bag  1  in which the separating region  7  has been at least partially opened is shown on the right in  FIG. 2 . 
     However, since babies should preferably not eat their baby food cold, it is advantageous that the baby food in the bag  1  can be heated beforehand. 
     For this purpose, the bag  1  is at least partially insertable into a tempering module  100 , as shown in  FIG. 3 . 
     The tempering module  100  has a tempering module housing  102 , which is preferably rotationally symmetrical in shape. However, only a tempering module interior  104  may be rotationally symmetrically shaped, while the exterior shape of the tempering module housing  102  is freely selectable. In addition, the tempering module housing  102  has a tempering module base surface  106  that is attachable to a connecting unit described later. On a side opposite to the tempering module base surface  106 , there is a tempering module insertion opening  108  via which the bag  1  can be at least partially inserted into the tempering module  100 . 
     During the tempering process, the tempering module insertion opening  108  may be closed by a cover (not shown). However, it is also possible that the nipple  29  which is positioned on the bag  1 , substantially closes the tempering module insertion opening  108 , as shown in  FIG. 4 . Specifically, it is preferred that the diameter of the nipple  29  and/or the diameter of the connecting element  19 , which is connected to the nipple  29 , is larger than the diameter of the tempering module insertion opening  108 , so that slipping of the nipple  29  and/or the connecting element  19  into the tempering module interior  104  can be prevented (see  FIG. 4 ). The height H of the tempering module interior  104  is preferably adjusted so that the bag  1  can be arranged in a preferably stretched position in the tempering module interior  104 . In this way, a faster tempering of the contents of the bag  1  or of the baby food can be achieved. The height H of the tempering module interior  104  can thereby either be defined by the length of the tempering module  100  as such, or can be combined as desired by tempering module extension elements  110 . The individual tempering module extension elements  110  can be clicked together or screwed together.  FIG. 3  shows a condition in which two tempering module extension elements  110  are connected to each other. The lowest extension element  110  is preferably firmly connected to the tempering module base surface  106  and serves as the base module. 
     Alternatively, the individual tempering module extension members  110  may be interconnected such that they are scoverable relative to each other to allow the size of the tempering module  100  or tempering module interior  104  to be adjusted to the size of the bag  1 . 
     Since the tempering module  100  may comprise individual tempering module extension elements  110 , the size of the tempering module  100  may be reduced, particularly during transport. 
     More preferably, the tempering module  100  has a height H of from about 80 mm to about 140 mm. Preferably, the wall thickness of the tempering module  100  is in a range between about 0.5 mm and about 1.0 mm. A wall thickness of about 0.8 mm is particularly preferred. An inner diameter of the tempering module  100  is preferably between about 45 and about 70 mm. 
     At least one heating element is arranged on at least one area of an inner wall  112  of the tempering module housing  102 . The heating element can heat the inner wall  112  of the tempering module housing  102 , preferably the heating element is located outside the tempering module interior  104 . In other words, the inner wall  112  can be heated from the outside by the heating element and the heat is transferred to the tempering module interior  104  via the inner wall  112 . As shown in  FIG. 3 , the heating element is preferably formed as a heating mat  114  that at least partially overlaps the inner wall  112  of the tempering module housing  102 . Alternatively, the heating element may be formed as a heating plate, heating foil or heating board. In the following, however, only the heating mat  114  according to  FIG. 3  will be discussed by way of example. However, the explanations also apply to the other alternatives of a heating element. 
     Preferably, the inner wall  112  of the tempering module housing  102  is at least partially made of a thermally conductive material, such as aluminum or copper. For this purpose, the inner wall  112  may be manufactured as a tubular element made of aluminum or copper. As manufacturing tolerances for the diameter of the tubular element, +/−1 mm is preferred. Hereby, the heat generated by the heating mat  114  can be substantially evenly distributed via the tempering module housing  102  and delivered into the tempering module interior  104 . Thus, the contents of the bag  1  or the baby food can be heated evenly. 
     In order to achieve the fastest possible tempering of the contents of the bag  1  or the baby food, the tempering module interior  104  is dimensioned in relation to the bag  1  such that the bag  1  in the inserted state is in contact with the inner wall  112  at least in some areas. The more area of the bag  1  is in contact with the inner wall  112 , the faster heating can occur. If the tempering module housing  102  has a plurality of tempering module extension elements  110 , preferably each tempering module extension element  110  comprises at least one heating element. In order to provide power to each of the individual heating elements on the tempering module extension elements  110 , it is necessary to provide connection between the tempering module extension elements  110  that allows power to be transferred from the tempering module base surface  106  to the individual heating elements. 
     In addition, it is advantageous if heat-conducting particles are incorporated into the material of the bag  1 . These enable an even better transfer of heat to the baby food. The particles can be aluminum or copper particles. 
     In addition, at least one first magnet  116  may be arranged in the tempering module base surface  106 , which interacts with at least one second magnet  31  (see e.g.  FIG. 1 a   )). The second magnet  31  is arranged in or on the cover  21  of the bag  1 , which is arranged adjacent to the tempering module base surface  106  in the inserted state of the bag  1 . This fixes and/or elongates the bag  1  to the tempering module base surface  106  when the nipple  29  remains outside the tempering module housing  102 . 
     The bag  1  is arranged in the tempering module  100  with as few folds as possible. Specifically, as much surface of the bag as possible is in contact with the heated inner wall  112  of the tempering module  100 , so that as little insulating air as possible is located between the bag  1  and the inner wall  112 . Specifically, the hydrostatic pressure of the baby food in the bag  1  presses the bag  1  against the inner wall  112 . 
     In addition, tempering module terminal contacts  118  are positioned in the tempering module base surface  106 , via which the tempering module  100  can be connected to the connecting unit. Specifically, the heating mat  114  can thereby be connected. 
     Specifically, the tempering module  100  is configured such that the tempering module  100  can additionally be used as a holding device for the bag  1 . Specifically, after the baby food has been tempered in the bag  1 , the baby can drink directly from the bag  1  which is held in the tempering module  100 . via this, the user can hold a stable element resembling a bottle while the flexible bag  1  is arranged inside the tempering module  100 . 
     In the following, the connecting unit  200  will now be described, which is shown, for example, in  FIG. 4  (see steps  3  and  4  of the tempering process). 
     The connecting unit  200  has a connecting unit housing  202  (see  FIG. 5 a   )), the upper surface of which is a connection surface  204  onto which the tempering module  100 , specifically the tempering module base surface  106 , can be placed. Preferably, the tempering module  100  can be clicked onto the connecting surface  204  by a click mechanism. This allows the tempering module  100  to be securely connected to the connecting unit  200 . Furthermore, the click mechanism can already be used to start the temperature control process as soon as the tempering module  100  is clicked onto the connection surface  204 . 
       FIG. 5 b   ) shows a sectional view of the connecting unit  200 , showing that at least one rechargeable battery  206  (e.g. a lithium polymer rechargeable battery) is arranged inside the connecting unit housing  202 . This serves as an energy storage device, which supplies energy to the tempering module  100  when needed to provide power to the heating element. The rechargeable battery  206  makes it possible to always have energy available for tempering for baby food when on the move—independent of a power outlet. For example, by means of a USB port or a conventional power cable, the rechargeable battery  206  can be at least partially recharged. The rechargeable battery  206  as well as the heating mat  114  is thereby preferably designed in such a way that both liquid and frozen baby food can be heated in the tempering module  100 . Frozen baby food may be, for example, frozen breast milk stored in a bag  1 . 
     Furthermore, a control unit  208  is arranged in the interior of the connecting unit housing  202 , which is connected to the accumulator  206  in order to start and stop a tempering process by delivering energy to the heating element or by stopping the delivery. The duration of the tempering process may be determined by a fixed predefined time, or may occur as a function of an achieved temperature reached in the tempering module interior  104 . For this purpose, a sensor may be provided in the tempering module interior  104  that measures the temperature in the tempering module interior  104  (e.g., regularly or at different times) and transmits the measured data to the control unit  208 . Depending on the measured temperatures, the control unit  208  then controls the further tempering process. This function can also be used to maintain baby food in the tempering module  100  at a predetermined or predeterminable temperature. For example, the desired temperature may be set at the connecting unit  200 . In addition, switches may be located on the connecting unit  200  to trigger a start and/or stop of the tempering process. Alternatively or additionally, the connecting unit  200  may be controllable via an app. 
       FIG. 5 b   ) also shows connecting unit terminal contacts  210  located in the connection area  204  and designed to connect the tempering module terminal contacts  118 . 
     The set can be supplemented with a sterilization module  300  for sterilizing baby accessories, such as baby pacifiers or nipples. 
     The sterilization module  300  includes a sterilization module housing  302  with a sterilization module interior  304  formed therein. At least one UV lamp or LED  306  is positioned in the sterilization module interior  304  and is configured to sterilize the baby accessories positioned in the sterilization module interior  304 . Preferably, the UV lamp  306  is located on a sterilization module base surface  308  of the sterilization module housing  302 , as shown in  FIG. 6 . However, the at least one UV lamp  306  may be located on any other surface of the sterilization module interior  304 . Additionally, at least one UV mirror and/or at least one reflective surface may be positioned within the sterilization module housing  302 . 
     The UV lamp or LED  306  is connected to sterilization module  310  formed in the sterilization module base surface  308 . In order to perform the sterilization process, the sterilization module  300  is also connectable to the connecting unit  200 . For this purpose, the sterilization module terminal contacts  310  connect the connecting unit terminal contacts  210 . Again, a click mechanism may be used to automatically start the sterilization process. Alternatively, switches on the connecting unit  200  may be used to manually start or stop the sterilization process. Further, the sterilization process may be defined by a fixed predetermined or predeterminable time such that the sterilization process is automatically stopped by the control unit  208  after this time. When the sterilization process is started, the control unit  208  delivers energy from the rechargeable battery  206  to the UV lamp or LED  306 . 
     The sterilization module housing  302  further includes a sterilization module insertion opening  312  via which the baby accessories are insertable into the sterilization module interior  304 . As shown in  FIG. 6 , the sterilization module insertion opening  312  is preferably located at or near an upper surface of the sterilization module housing  302 . The sterilization module insertion opening  312  may be closed by a sterilization module cover  314 . This is fitted using a click mechanism, sealing lips or a screw mechanism (see  FIG. 6 ). 
     At least one retaining device  316  may be arranged on the sterilization module cover  314 , into which the ring of a baby pacifier may be hooked. Preferably, the retaining device  316  is or contains a hook. 
     The sterilization module base surface  308  can serve as a support surface for a nipple. Preferably, the at least one UV lamp or LED  306  is located at least partially in a bottom recess  318  (see  FIG. 6 ) to ensure unobstructed placement of the nipple. 
     The additional sterilization module  300  can also be used to easily sterilize baby accessories on the go, which are reused. For this purpose, the connecting unit  200  can be used to operate both the tempering module  100  and the sterilization module  300 . Before sterilization, the baby accessories can be cleaned with water or a wet wipe. 
     Although  FIGS. 4 and 5  show only connecting units  200  with a connector surface  204 , additional connector surfaces  204  may also be provided on the connecting unit  200  to allow parallel tempering and sterilization. 
     List of reference signs 
       1  bag 
       3  first chamber 
       5  second chamber 
       7  separating region 
       9  first end of the bag 
       11  first opening 
       13  second end of the bag 
       15  second opening 
       17  first connecting element 
       19  second connecting element 
       21  cover 
       23  outer surface of the connecting element 
       25  inner surface of the cover 
       26  welding device 
       27  thread 
       28  welding wire 
       29  nipple 
       30  sealing lip 
       31  second magnet 
       32  seal 
       34  folding edge 
       36  adhesive tape 
       38  seal 
       100  tempering module 
       102  tempering module housing 
       104  tempering module interior 
       106  tempering module bottom area 
       108  tempering module insertion opening 
       110  tempering module extension element 
       112  inner wall of the tempering module housing 
       114  heating mat 
       116  first magnet 
       118  tempering module terminal contact 
       200  connecting unit 
       202  connecting unit housing 
       204  connection area 
       206  rechargeable battery 
       208  control unit 
       210  connecting unit terminal contacts 
       300  sterilization module 
       302  sterilization module housing 
       304  sterilization module interior 
       306  UV lamp 
       308  sterilization module base surface 
       310  sterilization module terminal contact 
       312  sterilization module insertion opening 
       314  sterilization module cover 
       316  holding device 
       318  bottom recess 
     L longitudinal direction 
     H height