Abstract:
The present invention relates to methods for operating a beverage dispenser and programs regarding same. In an embodiment, at least one of a list of selectable coffee sensory parameters that relate to a coffee sensory property selected from the group consisting of foam or crema quality property, aroma, flavor and mouthfeel is presented. At least one input is received regarding at least one of the parameters. A beverage is dispensed from soluble coffee powder based at least in part on the selectable parameters by instructing at least one device selected from the group consisting of at least one dosing device, a pump and a whipping device.

Description:
PRIORITY CLAIM 
       [0001]    The present application is a division of U.S. patent application Ser. No. 13/877,845, filed on Apr. 4, 2013, which is a National Stage of International Application No. PCT/EP2011/067546, filed on Oct. 7, 2011, which claims priority to European Application No. 10186778.6, filed Oct. 7, 2010, and European Patent Application No. 10186777.8, filed Oct. 7, 2010, the entire contents of each of which are being incorporated herein by reference. 
     
    
     FIELD OF TECHNOLOGY 
       [0002]    The present invention relates to a beverage dispenser for preparing beverages, in particular coffee, according to a choice of the consumer based on the beverage sensory profile. 
       BACKGROUND 
       [0003]    The invention particularly relates to beverage dispensers preparing coffee based beverages from a soluble coffee product. This soluble coffee product is diluted with a diluent usually hot water. The dilution can be operated in a dilution or mixing chamber and, depending on the nature of the beverage ordered by the consumer, the mixture of the coffee product and the diluent can be whipped to create foam at the top of the beverage. 
         [0004]    These dispensers generally present a user interface proposing to the consumer a choice of different coffee based beverages types like espresso, coffee with milk, American coffee, cappuccino, and macchiato. The interface also usually enables to select the sugar intensity, the temperature or the volume of the beverage. Usually the coffee based beverages types have been market tested and the recipes for their preparation are set in a memory on which the control unit of the dispenser relies. Consequently, the consumers can only get a limited choice of beverages in the dispenser. Then there is a need for a dispenser that could propose to the consumers beverages different from those initially set in the dispenser and that could enable the consumers to define their own beverages according to their own taste. 
         [0005]    US 2006/0188620 describes a system for making and delivering a customized coffee beverage in which the customer can select the size, the color, the strength, the temperature of the coffee and the introduction of additional flavors. The control of the strength of the coffee is made by utilization of delayed dilution, delayed mixing and/or delayed filtering of coffee extracts issued from roast and ground coffee brewing. Liquid extracts of different strengths are produced and can then be mixed so as to reach the strength desired by the customer. 
         [0006]    In the field of beverage dispensers preparing beverages from soluble ingredients, WO 2009/032877 describes a juices based beverages dispenser in which the consumer can select the nature of the different components of her/his beverage and the ratio of these selected components. This process enables the consumer to invent her/his own recipe. Due to the fact that the consumer knows exactly the taste of different juice flavors (e.g., apple, and orange) she/he can guess what the resulting mixture will taste. 
         [0007]    In the field of beverage dispensers preparing beverages from a soluble coffee product, there is not such a large choices of flavors with which the consumer can play. Actually the coffee dispensers generally comprise two sources of coffee ingredient: a soluble coffee powder and a soluble decaffeinated coffee powder. In such coffee dispensers, there is a need to propose to consumers to change the beverages recipes initially set in the dispenser so that the consumer can get the coffee beverage he likes in terms of coffee sensory profile not only in terms of the strength and color of the coffee beverage, but also in terms the quality of the crema at the top of the coffee beverage, of the aroma and of the taste of the coffee beverage. 
         [0008]    The aim of the present invention is to propose a coffee based beverage dispenser preparing beverage from coffee soluble ingredients which prepare the beverage according to a sensory profile defined by the consumer. 
         [0009]    It has also been observed that the taste of consumers varies from one world area to another: European consumers do not drink their coffee like American. Asian consumers like their coffee in another third way too. Yet the same beverage dispenser is generally produced for being sold and used in every part of the world. If the dispenser is set for a European consumer taste, it won&#39;t answer the demand of the consumers of the rest of the world and won&#39;t have success there. 
         [0010]    Besides the beverage dispensers produced by the dispensers&#39; manufacturers are usually sold to customers or operators who manage the operation of the dispensers. These operators usually want all their dispensers to deliver the same type of beverages, in particular presenting the same taste, so as to develop consumers&#39; loyalty. Yet again the same beverage dispenser is generally produced for being sold to all operators. If the dispenser is set for one operator taste, it won&#39;t answer the demand of the other operators. 
         [0011]    Therefore there is need for manufacturing dispensers that can be individually set for answering all the expectations of the consumers or the operators. 
         [0012]    In particular there is a need for a dispenser that incorporates usual components for making a beverage but that can be set for providing beverages according to the consumer or the operator taste. 
       SUMMARY 
       [0013]    According to a first aspect, the invention concerns a beverage dispenser comprising: 
         [0014]    means for preparing a beverage from at least one soluble concentrated food ingredient, 
         [0015]    a user interface operable to interact with a consumer for presenting to the consumer at least one of a list of selectable sensory parameters and for receiving at least one input from the consumer regarding at least one of these parameters, 
         [0016]    a control unit controlling the means for preparing a beverage and dispensing a beverage based at least in part on the at least one input of the consumer regarding at least one of the selectable sensory parameters. 
         [0017]    Generally the means for preparing a beverage from at least a concentrated food ingredient comprises: 
         [0018]    at least one source of a concentrated food ingredient, 
         [0019]    at least one dosing device operably associated with the source of concentrated food ingredient, 
         [0020]    a source of diluent, 
         [0021]    a pump operably associated with the source of diluent, 
         [0022]    a whipping device operably associated with the diluent pump means and the at least one concentrated food ingredient dosing device for receiving and whipping the source of diluent and the concentrated food ingredient to prepare a product beverage. 
         [0023]    The source of diluent and the pump are generally connected through a liquid circulation circuit. This circuit can comprise a heater. 
         [0024]    The concentrated food ingredient can be any kind of food ingredient that is soluble in water. It can be a liquid concentrate but it is preferably a soluble powder. It can be a milk powder or a chocolate powder. It is most preferably is a soluble coffee powder. The concentrated food ingredient is usually stored in a container. The source of concentrated food ingredient is preferably placed above the dosing device so that the source of concentrated food ingredient can fall by gravity in the dosing device. In the present invention “soluble” means that the concentrated food ingredients can be completely dissolved in water. Consequently the soluble concentrated food ingredients used in the present invention do not encompass roast and ground coffee or herbal or tea leaves in which only a part of the ingredients are extracted and dissolved in water. 
         [0025]    The dosing device can be any device able to meter a dose of powder like a rotary pierced disc, a dosing auger, a shut off valve, an endless screw, a barrel, a sliding chamber or other known powder dosing devices. When a liquid concentrated food ingredient is used, the dosing means can be a non-return valve associated with a peristaltic pump. It can be part of the container holding the concentrated food ingredient or it can be an independent device in which an outlet of the source of a concentrated food ingredient emerges. 
         [0026]    Preferably the dispenser can comprise several sources of different soluble concentrated coffee products. These different concentrated coffee products can be selected between coffees of different origins, of different roasting colors, of different caffeine contents. It can also be different blends of different soluble coffees or soluble coffees issued from blends of coffees of different origins. 
         [0027]    The diluent is usually water, preferably hot water. This hot water can be heated and stored in a boiler of the dispenser. It can also be heated on demand by an instant heater. 
         [0028]    The pump means and the dosing unit deliver the diluent and the concentrated food ingredient to a whipping device. The whipping device dissolves the soluble food ingredient with water and eventually creates foam in the mixture of diluent and soluble food ingredient. It can comprise a dissolution chamber in which the diluent and the concentrated food ingredient are introduced and mixed together and a whipping chamber in which a whipper froths the mixture issued from the dissolution chamber. 
         [0029]    The dispenser usually comprises a housing hiring the means for preparing a beverage and having a receiving place for at least a receptacle to be filled with the beverage. This receiving place can comprise a drip tray having a support member for the receptacle. Typically, the beverage preparation machine comprises housing for housing as least the beverage preparation means and the control unit and for bearing a user-interface. 
         [0030]    The dispenser further comprises a control unit for controlling all processes within the dispenser. More specifically the control unit can instruct the at least one dosing device, the pump and eventually the whipping device based at least in part on the at least one input of the consumer regarding at least one of the selectable sensory parameters. In particular the control unit can control: 
         [0031]    the selection of one or several concentrated food ingredient(s), 
         [0032]    the concentrated food ingredient(s) dosage, 
         [0033]    the water delay and eventually the whipping time and 
         [0034]    the whipping device speed based at least in part on the at least one input of the consumer regarding at least one of the selectable sensory parameters. The water delay corresponds to the length of time for introducing the water in the receptacle in which it is mixed with the concentrated food ingredient. 
         [0035]    The machine preferably comprises a user interface screen for providing information to the user and for accepting input by the consumer. The user interface screen can be a touch-sensitive screen and/or comprise touch-sensitive input parts. The machine may have a user-input device, such as a touch pad, one or more buttons and/or switches or similar devices known in the art. 
         [0036]    The selectable beverage sensory parameters presented by the user interface to the consumer relate at least to one of the following beverage sensory properties: the foam or crema quality, the aroma, the flavor and/or the mouthfeel. The foam generally relates to beverages comprising at least milk and/or chocolate while the crema relates to black coffee beverages. Aroma refers to what is sensed by the nose and generally depends on the volatile compounds of the beverage. Flavor is what is sensed by a combination of taste as sensed by the tongue. 
         [0037]    Concerning the sensory parameter relative to the crema quality of a black coffee or the foam quality for other beverages than black coffee, the user interface can present to the consumer at least one sensory parameter relative to the crema or the foam quality and propose to the consumer to select at least one crema or foam quality property comprised in the list of: crema or foam quantity, crema or foam stiffness, crema or foam density, crema or foam color. 
         [0038]    Concerning the sensory parameter relative to the aroma of the beverage, the user interface can present to the consumer at least one beverage sensory parameter relative to the aroma and propose to the consumer to select at least one aroma property comprised in the list of: coffee aroma, roasty aroma, fruity aroma. 
         [0039]    Concerning the coffee sensory parameter relative to the flavor, the user interface can present to the consumer at least the beverage sensory parameter relative to the flavor and propose to the consumer to select at least one or property comprised in the list of: bitterness, spiciness, acidity. 
         [0040]    Concerning the beverage sensory parameter relative to the mouthfeel, the user interface can present to the consumer at least the beverage sensory parameter relative to the mouthfeel and propose to the consumer to select at least one mouthfeel property comprised in the list of: body, persistency, astringency. 
         [0041]    According to a specific embodiment the user interface can present to the consumer at least one list of different selectable concentrated coffee products and an adjustable ratio of the concentrated coffee products and propose to the consumer to select at least one concentrated coffee product and optionally its ratio if different concentrated coffee products are selected. 
         [0042]    When the dispenser is mainly a coffee dispenser, it can comprise at least one additive source, the additive being comprised in the list of a sweetener, a milk product or a chocolate product. The dispenser can comprise several additive sources of milk products selected in the list of, e.g., skimmed milk, full fat milk, and soya. The dispenser can also comprise several additive sources of chocolate products of different origins. 
         [0043]    The user interface can present to the consumer at least one of a list of parameters relative to the choice of the additives and their ratio. 
         [0044]    According to a particular embodiment of the dispenser of the invention: 
         [0045]    the dispenser can comprise n storing means separately storing n different soluble concentrated coffee products, each storing means being operably associated with a means for dosing the stored soluble concentrated coffee product, and 
         [0046]    the user interface is operable to interact with a consumer for presenting to the consumer at least n+1 selectable predefined coffee based beverages and for receiving: 
         [0047]    either one input from the consumer for selecting one of the predefined coffee based beverages, 
         [0048]    or one input from the consumer for modifying one of the predefined coffee based beverages, and 
         [0049]    the control unit can control the means for dosing the stored concentrated coffee products based at least in part on the at least one input of the consumer regarding the selection or the modification of a predefined coffee based beverage. 
         [0050]    Preferably this dispenser comprises at least 2 storing means separately storing different soluble concentrated coffee products, which means that n≧2. 
         [0051]    The control unit of this dispenser can control the means for dosing the stored concentrated coffee products based at least in part on the at least one input of the consumer regarding the selection or the modification of the selectable predefined coffee based beverages. In particular the control unit can control at least one of the following parameters: the selection of at least one of the concentrated coffee product, the dosage of the concentrated coffee product(s), the diluent delay, the whipper time, the whipper speed based at least in part on the at least one input of the consumer regarding the selection or the modification of the selectable predefined coffee based beverages. The control unit controls the means for dosing the stored concentrated coffee product so that the concentrated coffee product(s) that enter(s) in the preparation of the selected beverage can be dosed based on the input of the consumer. 
         [0052]    According to a second aspect, the invention concerns a method for operating a beverage dispenser comprising the steps of: 
         [0053]    presenting at least one of a list of selectable sensory parameters, 
         [0054]    receiving at least one input regarding at least one of these parameters, 
         [0055]    dispensing a beverage based at least in part on the selectable parameters. 
         [0056]    The selectable sensory parameters can be chosen in the list of the foam or crema quality, the aroma, the flavor and/or the mouthfeel of the beverage. 
         [0057]    The method is preferably applied in a dispenser comprising: 
         [0058]    at least one dosing device operably associated with at least one source of concentrated food ingredient, 
         [0059]    a pump operably associated with a source of diluent, 
         [0060]    a mixing device operably associated with the pump and the at least one concentrated food ingredient dosing device, preferably a whipping device, 
         [0061]    and wherein the beverage product based at least in part on the selectable parameters is dispensed by instructing the at least one dosing device, the pump and the mixing device. 
         [0062]    In particular the beverage product can be dispensed by monitoring the activation of the at least one dosing device, the water delay and eventually the whipping speed of the whipping device. 
         [0063]    The activation of the dosing device enables simultaneously the delivery of the selected concentrated food ingredient and the control of its dosing. 
         [0064]    According to a particular embodiment, the method can comprise means configured for preparing a beverage from at least one concentrated soluble coffee product and n storing means configured for separately storing n different soluble concentrated coffee products, the method comprising the steps of: 
         [0065]    presenting to the consumer at least one of a list of selectable predefined coffee based beverages, 
         [0066]    receiving at least one input from the consumer regarding the selection of one of the predefined coffee based beverages or the modification of one of the predefined coffee based beverages, 
         [0067]    dispensing the selected predefined coffee based beverage if the user interface receives one input from the consumer for selecting one of the predefined coffee based beverages, or dispensing a modified predefined coffee based beverage if the user interface receives one input from the consumer for modifying one of the predefined coffee based beverages. 
         [0068]    Preferably the method comprises the steps of: 
         [0069]    presenting to the consumer at least one of a list of selectable coffee sensory parameters modifying the selectable predefined coffee based beverages, 
         [0070]    receiving at least one input regarding at least one of these parameters, 
         [0071]    dispensing a modified predefined coffee based beverage based at least in part on the selectable parameters. 
         [0072]    The control unit can control the means for dosing the concentrated coffee products based at least on a predefined coffee based beverage recipe stored data. 
         [0073]    According to a third aspect the invention concerns a program stored on a memory device and executable by a control unit of a beverage dispenser, the dispenser comprising: 
         [0074]    at least one dosing device operably associated with at least one source of soluble food ingredient, 
         [0075]    a pump operably associated with a source of diluent, 
         [0076]    a whipping device operably associated with the pump and the at least one concentrated coffee product dosing device, 
         [0077]    wherein the program when being executed is arranged to perform the steps of: 
         [0078]    presenting at least one of a list of selectable sensory parameters (P 1 , P 2 , P 3 , P 4 ), chosen in the list of the foam or crema quality, the aroma, the flavor and/or the mouthfeel of the beverage, 
         [0079]    receiving at least one input regarding at least one of these parameters, 
         [0080]    dispensing a beverage based at least in part on the selectable parameters. 
         [0081]    According to a fourth aspect the invention concerns a method for setting a beverage dispenser according to a sensory profile, the dispenser comprising: 
         [0082]    at least one dosing device operably associated with at least one source of soluble food ingredient, 
         [0083]    a pump operably associated with a source of diluent, 
         [0084]    a whipping device operably associated with the pump and the at least one concentrated coffee product dosing device, 
         [0085]    the method comprising the steps of: 
         [0086]    defining the parameters of the sensory profile (P 1 , P 2 , P 3 , P 4 ), chosen in the list of the foam or crema quality, the aroma, the flavor and/or the mouthfeel of the beverage, 
         [0087]    setting instructions for the at least one dosing device, the pump and/or the whipping device based at least in part on the defined parameters. 
         [0088]    This method enables the setting of a dispenser so that it dispenses beverages according to a defined sensory profile. The operator of the dispenser can identify the type of sensory profile he wants to be delivered by the dispenser. This type of sensory profile can be defined for each type of generic beverages that can be produced by the dispenser like: espresso coffee, long coffee, cappuccino, latte macchiato, chocolate, and tea. The sensory profile of each generic beverage is defined by identifying its parameters (P 1 , P 2 , P 3 , P 4 ), chosen in the list of the foam or crema quality, the aroma, the flavor and/or the mouthfeel of the beverage. Based on these parameters, instructions for the at least one dosing device, the pump and/or the whipping device are set and applied to the dispenser. 
         [0089]    According to a fifth aspect the invention concerns a program for setting a beverage dispenser according to defined parameters (P 1 , P 2 , P 3 , P 4 ) of a sensory profile chosen in the list of the foam or crema quality, the aroma, the flavor and/or the mouthfeel of the beverage, the dispenser comprising: 
         [0090]    at least one dosing device operably associated with at least one source of soluble food ingredient, 
         [0091]    a pump operably associated with a source of diluent, 
         [0092]    a whipping device operably associated with the pump and the at least one concentrated coffee product dosing device, 
         [0093]    wherein the program when being executed is arranged to perform the steps of setting instructions for the at least one dosing device, the pump and/or the whipping device based at least in part on the defined parameters of the sensory profile. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0094]    The characteristics and advantages of the invention will be better understood in relation to: 
           [0095]      FIG. 1  which depicts a schematic drawing of a dispenser of the present invention; 
           [0096]      FIG. 2  which illustrates one method of allowing a customer to choose between a standard coffee beverage or a customized beverage; 
           [0097]      FIG. 3  which depicts a schematic drawing of another embodiment of a dispenser of the present invention; 
           [0098]      FIG. 4  which illustrates one method of allowing a customer to choose between a predefined coffee based beverage or to customize a predefined coffee based beverage. 
       
    
    
     DETAILED DESCRIPTION 
       [0099]      FIG. 1  is a schematic drawing of an embodiment of a dispenser of the present invention. The illustrated dispenser comprises means for preparing a beverage from concentrated food ingredients, preferably concentrated coffee products. This means includes two containers  1   a ,  1   b  storing different beverage soluble concentrated ingredients, preferably coffee concentrate soluble in water. Yet a greater number of different ingredients could also be used according to the present invention. For example the dispenser can contain several soluble coffee concentrates differing by their origins, several soluble coffee concentrates differing by their blends, several soluble coffee concentrates differing by their roasting colors, several soluble coffee concentrates differing by their caffeine contents (e.g., decaffeinated or half decaffeinated). 
         [0100]    The means for preparing a beverage comprises a dosing device  2   a ,  2   b  associated to each container  1   a ,  1   b  for measuring a dose of ingredient and for delivering the dose to a whipper device  3 . The dispenser comprises a source of diluent that is a tank of water  5 , preferably heated water, connected to a pump  4 . The pump delivers the pumped diluent to the whipper device  3 . 
         [0101]    The whipper device  3  of the illustrated dispenser comprises a dissolution chamber  31  in which the dose of coffee ingredient and the pumped diluent are introduced and a whipper chamber  32  situated downstream to the dissolution chamber  31  and in which a whipper  33  is able to whip the mixture of coffee ingredient and diluent. The whipper is actuated by a motor  34 . The whipper chamber  32  also comprises an outlet  35  for delivering the whipped mixture to a cup  8 . 
         [0102]    The dispenser comprises a control unit  7  able to control the coffee ingredient dosing devices  2   a ,  2   b , the whipper motor  34 , the diluent pump means  4 . The control unit can execute computer executable program instructions stored in a memory  9 . 
         [0103]    The dispenser comprises a user interface  6 , comprising an input and output device, such as a display device, so that the consumer can make a beverage type selection. The controller can present to the consumer a list of selectable sensory parameters P 1 , P 2 , P 3 , P 4 , . . . in the display device. A processor can facilitate the consumer&#39;s selection of a particular sensory profile via the display device. The consumer may select at least one of the parameters using the display device, for instance, pressing a button provided by or associated with the display device or by touching the screen if the display device is a touch screen. The user interface  6  comprises means for receiving at least one input  61  from the consumer regarding at least one of the parameters. The input  61  is transmitted to the control unit  7  which may obtain from a local memory  9  or may communicate via a network, with at least one database  9 , or may communicate with at least one data processing resource  9 , such as server, to obtain corresponding process information  91  for forming the beverage with the selected sensory profile according to the input  61 . The control unit can utilize the information to control the one or more dosing device,  2   a ,  2   b  and/or the pump  4  and/or the whipping device  3 , to form and dispense a product or beverage into the cup  8  according to the sensory profile selected by the customer. 
         [0104]    The dispenser can comprise an enhanced view graphical user interface, which can provide a consumer with selectable beverage types (e.g., espresso, ristretto, and cappuccino) and then selectable sensory profile parameters in a series of dynamically generated menus, wherein the consumer can locate and select a specific sensory profile of a desired beverage type. Once a particular beverage type is selected, the consumer can select the sensory profile of the selected beverage type and then cause a corresponding beverage to be formulated and dispensed by the dispenser. 
         [0105]    Preferably at least one of the selectable sensory parameters P 1 , . . . , P 4  relates at least to one of the following beverage sensory properties: 
         [0106]    the foam or crema quality, the foam referring to a chocolate or milk based beverage while the crema referring to a black coffee, 
         [0107]    the aroma, 
         [0108]    the flavor, and/or 
         [0109]    the mouthfeel. 
         [0110]    Concerning the foam or crema quality, the user interface can present to the consumer at least one quality property comprised in the list of: 
         [0111]    foam or crema quantity. By foam quantity, it is meant the quantity of the foam at the surface of the beverage. 
         [0112]    foam or crema stiffness. By foam stiffness, it is meant the ability of the foam or crema to be taken with a spoon and to stay in the spoon when it is tilted. 
         [0113]    foam or crema density, By foam density, it is meant the visual appearance of the crema or the foam that is the bubble size. Low density means aerated big bubbles whereas high density means compact and very small or no bubbles. 
         [0114]    foam or crema color. By foam color, it is meant the darkness of the crema at the top of a black coffee or the whiteness of the foam at the top of a milk based beverage or the intensity of the color from light to dark for the foam for a chocolate beverage. 
         [0115]    The crema or foam quality selected by the consumer can be reached by the selection of at least one beverage ingredient known for its foam properties, the choice of the dosage of the ingredient, the choice of the speed of the whipper device and/or the choice of the time for the water delay. 
         [0116]    Concerning the aroma, the user interface can present to the consumer at least one property comprised in the list of: 
         [0117]    coffee aroma corresponding to an intense fresh coffee without off-note, 
         [0118]    roasty aroma corresponding to the aroma of a roasted coffee, 
         [0119]    fruity aroma corresponding to fruity, winy, flowery aroma. 
         [0120]    The aroma quality selected by the consumer can be reached by the choice of at least one coffee ingredient known for its aroma properties and its dosage. 
         [0121]    Concerning the flavor, the user interface can present to the consumer at least one taste property comprised in the list of: 
         [0122]    bitterness, 
         [0123]    spiciness, 
         [0124]    acidity. 
         [0125]    The flavor quality selected by the consumer can be reached by the choice of at least one beverage ingredient known for its taste properties and its dosage. 
         [0126]    Concerning the mouthfeel, the user interface can present to the consumer at least one mouthfeel property comprised in the list of: 
         [0127]    body corresponding to the apparent viscosity, thickness and weight in the mouth, 
         [0128]    persistency corresponding to all types of aftertaste remaining in the mouth after swallowing, 
         [0129]    astringency corresponding to chemical feeling on the tongue described as puckering or dry and associated with substances such as tannins. 
         [0130]    The mouthfeel quality selected by the consumer can be reached by the choice of at least one coffee ingredient known for its taste properties, its dosage and the speed of the whipper device. 
         [0131]    For each beverage property the user interface can present to the customer different strength levels that he/she can chose. For example the user interface can propose at least one of the following selectable strengths: 
         [0132]    no, medium or high level of foam/crema quantity, 
         [0133]    no, medium or high level of foam/crema stiffness, 
         [0134]    no, medium or high level of foam/crema density, 
         [0135]    light, medium or strong crema darkness or light, medium or strong foam whiteness, 
         [0136]    light, medium or strong coffee aroma, 
         [0137]    light, medium or strong roasty aroma, 
         [0138]    light, medium or strong fruity aroma, 
         [0139]    light, medium or strong bitterness, 
         [0140]    light, medium or strong spiciness, 
         [0141]    light, medium or strong acidity, 
         [0142]    light, medium or strong body, 
         [0143]    light, medium or strong persistency, 
         [0144]    light, medium or strong astringency. 
         [0145]    Referring to  FIG. 2 , an example of a method for operating a beverage dispenser is illustrated. The method begins in block  100 . In block  100 , an input is received from the consumer to select a coffee beverage type like espresso, ristretto, or cappuccino. Block  100  is followed by block  101 , the control unit  7  of the dispenser illustrated in  FIG. 1 , generate or otherwise transmit a communication to the consumer that allows him to make a coffee sensory customization of the selected a coffee beverage type profile. For example, the control unit  7  can provide a message via an output device, such as a user interface  6 . Block  101  is followed by block  102 , in which a determination is made as to whether the consumer wants to customize the sensory profile. If the determination is in the affirmative, that is, the consumer wants to customize the beverage type, then the method continues at block  103 . In block  103 , an input is received from the consumer via a user interface, such as 6 in the dispenser of  FIG. 1  to adjust all or some coffee sensory profile parameters P 1 , P 2 , P 3 , P 4 , . . . of the selected beverage type. Coffee sensory profile parameters can include, but are not limited to, the crema quality, the aroma, the flavor and/or the mouthfeel. Block  103  is followed by block  104 , in which the customized beverage is dispensed to the consumer. If in block  102  the determination is in the negative, that is, the consumer does not want to customize the beverage type, then the method continues at block  104 . 
         [0146]      FIG. 3  is a schematic drawing of an embodiment of a specific embodiment of a dispenser of the present invention. The illustrated dispenser comprises means for preparing a beverage from concentrated soluble coffee products. This means includes four containers  1   a ,  1   b ,  1   c ,  1   d  storing coffee concentrates soluble in water. Yet a greater number of different ingredients could also be used according to the present invention. These different coffee concentrates can differ at least by their origins, their blends of different soluble coffees, their roasting colors and/or their caffeine contents (decaffeinated, half decaffeinated). 
         [0147]    The means for preparing a beverage comprises a dosing device  2   a ,  2   b ,  2   c ,  2   d  associated to each container  1   a ,  1   b ,  1   c ,  1   d  for measuring a dose of ingredient and for delivering the dose to a whipper device  3 . The dispenser comprises a source of diluent that is a tank of water  5 , preferably heated water, connected to a pump  4 . The pump delivers the pumped diluent to the whipper device  3 . 
         [0148]    The whipper device  3  of the illustrated dispenser comprises a dissolution chamber  31  in which the dose of coffee ingredient and the pumped diluent are introduced and a whipper chamber  32  situated downstream to the dissolution chamber  31  and in which a whipper  33  is able to whip the mixture of coffee ingredient and diluent. The whipper is actuated by a motor  34 . The whipper chamber  32  also comprises an outlet for delivering the whipped mixture to a cup  8 . 
         [0149]    The dispenser comprises a control unit  7  able to control the coffee ingredient dosing devices  2   a ,  2   b , 2   c ,  2   d , the whipper motor  34 , the diluent pump means  4 . The control unit can execute computer executable program instructions stored in a memory  9 . 
         [0150]    The dispenser comprises a user interface  6 , comprising an input and output device, such as a display device, so that the consumer can make a beverage type selection. The controller presents to the consumer a list of n+1 selectable predefined coffee based beverages (C 1 , C 2 , C 3 , C 4 , C 5 , C 6 , . . . ) in the display device. These beverages can be presented with trademark names or can be associated to specific colors so that the consumer can immediately identify the predefined coffee based beverage he knows and he wants. 
         [0151]    The user interface presents to the customer two options that are either: 
         [0152]    according to a first option, the selection of one of the predefined coffee beverages 
         [0153]    or, according to a second option, the customization of one predefined coffee beverages. In the second option, the user interface presents to the customer the list of predefined coffee beverages (C 1 , C 2 , C 3 , C 4 , C 5 , C 6 , . . . ) so he can select the predefined coffee beverage he wants to customize and then a list of selectable coffee sensory profile parameters (P 1 , P 2 , P 3 , P 4 ) so that he can make his customization. 
         [0154]    The consumer may select his beverage or his customization using the display device, for instance, pressing a button provided by or associated with the display device or by touching the screen if the display device is a touch screen. The user interface  6  comprises means for receiving at least one input  61  from the consumer regarding the beverage to be prepared. The at least one input  61  is transmitted to the control unit  7  which may obtain corresponding process information  91  for forming the selected beverage according to the input  61 : 
         [0155]    from a local database  9 , 
         [0156]    or by communication via a network with at least one database  9 . 
         [0157]    The processor can utilize the information to control the one or more dosing device,  2   a ,  2   b ,  2   c  and  2   d  and/or the pump  4  and/or the whipping device  3 , to form and dispense the beverage into the cup  8 . 
         [0158]    The dispenser can comprise an enhanced view graphical user interface, which can provide a consumer with selectable predefined coffee based beverages and selectable coffee sensory profile parameters in a series of dynamically generated menus, wherein the consumer can locate and select a predefined coffee based beverage and eventually specific sensory profile of the beverage. 
         [0159]    If the consumer selects one of the predefined coffee based beverages C 1 , then the control unit controls the selection of at least one of the concentrated coffee products, the dosage of the concentrated coffee product(s), the diluent delay, the whipper time, the whipper speed device for preparing the predefined coffee based beverage C 1  based on C 1  recipe data stored in the database  9 . 
         [0160]    If the consumer selects the customization of one of the predefined coffee based beverages C 1  and gives input for the sensory profile parameter of his customized beverage C 1 , then the control unit controls the selection of at least one of the concentrated coffee products, the dosage of the concentrated coffee product(s), the diluent delay, the whipper time, the whipper speed device for preparing the predefined coffee based beverage C 1  based on C 1  recipe data stored in the database  9  and on coffee sensory parameters control data stored in the database  9 . 
         [0161]    As for the selection of the selectable coffee sensory parameters P 1 , . . . , P 4 , the dispenser works as described in the dispenser of  FIG. 1 . 
         [0162]    Referring to  FIG. 4 , an example of a method for operating the coffee beverage dispenser of  FIG. 3  is illustrated. The method begins in block  100 . In block  100 , an input is received from the consumer to select a predefined coffee based beverage. Block  100  is followed by block  101  in which the control unit  7  of the dispenser illustrated in  FIG. 3 , generate or otherwise transmit a communication to the consumer that allows him to make a coffee sensory customization of the predefined coffee based beverage selected in block  100 . For example, the control unit  7  can provide a message via an output device, such as a user interface  6 , proposing to customize the froth or foam, the aroma, the flavor and/or the mouthfeel of the predefined coffee based beverage selected in block  100 . Block  101  is followed by block  102 , in which a determination is made as to whether the consumer wants to customize the selected predefined coffee based beverage. If the determination is in the affirmative, that is, the consumer wants to customize the beverage type, then the method continues at block  103 . In block  103 , an input is received from the consumer via a user interface, such as 6 in the dispenser of  FIG. 3  to adjust all or some coffee sensory profile parameters P 1 , P 2 , P 3 , P 4 , . . . of the selected beverage type. Block  103  is followed by block  104 , in which the customized beverage is dispensed to the consumer. If in block  102  the determination is in the negative, that is, the consumer does not want to customize the beverage type, then the method continues at block  104  by dispensing the predefined coffee based beverage selected in block  100 . 
         [0163]    This dispenser presents the advantage of proposing different preselected optimized coffee beverages that can be prepared from only a limited number of basic concentrated coffee products. Although presenting a small footprint the dispenser can provide a great number of coffee based beverage by mixing the ratio of the different basic concentrated coffee products. It presents the advantage of enabling the customer to customize his coffee beverage starting from a selected predefined coffee based beverage. The customization enable the fine tuning of this predefined coffee based beverage based on sensory parameters. Consequently the dispenser does not enable the customer to prepare infinity of coffee beverages, most of them not presenting a disappointing taste. The dispenser can guide the customer in the selection of coffee beverages. 
         [0164]    It should be understood that various changes and modifications to the presently preferred embodiments described herein will be apparent to those skilled in the art. Such changes and modifications can be made without departing from the spirit and scope of the present subject matter and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.