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Title:
STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/197139
Kind Code:
A1
Abstract:
A storage device (1) for a fatty food product, such as butter, margarine or cheese is provided. The storage device comprises a housing, a closeable food container (400), a tempering unit (900) and a control unit (800). The closeable food container (400) is configured to contain the fatty food product and to be removably arranged in the housing. The housing comprises an insulation (200) and a cooling box (300), the cooling box (300) being configured to removably receive the closable food container (400). The tempering unit (900) is configured to control the temperature of the interior of the closable food container (400) based on a signal from the control unit (800). The storage device (1) further comprises a scale (1000) configured to communicate, to the control unit (800), a detected weight information relating to the fatty food product to be contained in the closable food container (400). Further, the control unit (800) is configured to process and communicate information relating to the detected weight information of the fatty food product to a consumer.

Inventors:
ROTHBERG, Johan (Karlby, Kökar Åland, 22730, FI)
ISAKSSON, Donny (Bättringsvägen 1, Mariehamn Åland, 22100, FI)
Application Number:
EP2019/057291
Publication Date:
October 17, 2019
Filing Date:
March 22, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NOGINVEST AB (Kökar Åland, 22730, FI)
International Classes:
F25B21/02; A47G19/26; F25D11/00; G01G19/42
Domestic Patent References:
WO2006100476A12006-09-28
WO2006100476A12006-09-28
Foreign References:
US20170042373A12017-02-16
JP2000304594A2000-11-02
Attorney, Agent or Firm:
AWA SWEDEN AB (Box 5117, Malmö, 200 71, SE)
Download PDF:
Claims:
CLAIMS

1. A storage device (1 ) for a fatty food product, such as butter or cheese,

comprising:

a housing (2), a closeable food container (400), a tempering unit (900) and a control unit (800), wherein

the closeable food container (400) is configured to contain the fatty food product and to be removably arranged in the housing (2),

the housing (2) comprises an insulation (200) and a cooling box (300), the cooling box (300) being configured to removably receive the closable food container (400), and

c h a r a c t e r i z e d by

that the tempering unit (900) comprises a thermoelectric element (902) in the form of a Peltier element which is in direct contact with the cooling box (300),

that the tempering unit (900) is configured to control the temperature of the interior of the closable food container (400) based on a signal from the control unit (800),

that the storage device (1 ) further comprises a scale (1000) configured to communicate, to the control unit (800), a detected weight information relating to the fatty food product to be contained in the closable food container (400), and

that the control unit (800) is configured to process and communicate information relating to the detected weight information of the fatty food product to a consumer. 2. The storage device according to claim 1 , wherein the scale (1000) comprises at least three load cells (1001 ), each load cell (1001 ) being configured to detect weight information relating to the fatty food product, and wherein the control unit (800) is configured to determine a sum of the weight information determined by the individual load cells.

3. The storage device according to claim 2, wherein the at least three load cells (1001 ) are arranged in a non-linear pattern.

4. The storage device according to claim 2, wherein the at least three load cells (1001 ) are arranged in a horizontally extending interface between a support element (1002) and an outer shell (100) which is configured to at least partly enclose the insulation (300); in a horizontally extending interface between the support element (1002) and the insulation (200); in a horizontally extending interface between the insulation (200) and the outer shell (100); in a horizontally extending interface between the cooling box (300) and the insulation (200); or in a horizontally extending interface between the food container (400) and the cooling box (300).

5. The storage device according to claim 4, wherein each of the at least three load cells (1001 ) is arranged to have a point-like contact (1004) with a support surface, the support surface being formed by the bottom wall (101 ; 201 ; 301 ) of the outer shell (100), the insulation (200), the cooling box (300) or the support element (1002).

6. The storage device according to any of the preceding claims, wherein the tempering unit (900) is configured to control the temperature of the interior of the closable food container (400) based on a signal from the control unit (800), which signal relates to a set-point temperature.

7. The storage device according to any of the preceding claims, wherein the control unit (800) is configured to process information relating to the detected weight information to determine a weight or a weight difference, and to further communicate information relating to this determined weight or weight difference to the consumer.

8. The storage device according to any of the preceding claims, wherein the control unit (800) is further configured to control the tempering unit (900) and to process and communicate, to the consumer, information relating to at least the temperature of the interior of the closable food container (400).

9. The storage device according to any of the preceding claims, wherein the storage device (1 ) further comprises a user interface (600) allowing presentation of information to the consumer, and a setting unit (700) allowing setting of the control unit (1 ).

10. Use of a storage device according to any of claims 1 to 9 to store and temper butter, margarine or cheese.

Description:
STORAGE DEVICE

Technical field

The present invention refers to a storage device for a fatty food product.

Technical background

Certain solid food items such as butter is traditionally kept in a refrigerator or in an area in a building with a relatively low ambient temperature to maintain the food product in a substantially solid form and also to prolong the storage life. However, in order to make the butter easy to use, such as to spread on a sandwich, or to measure in during baking, it is also preferred in many situations that the butter can be set to a required serving temperature. The time when the butter is at an ideal serving temperature does typically not coincide with when the butter is actually required during the meal. There is hence a need for a storage device for food items, and especially fatty food products such as butter or cheese, which allows an easy temperature control during storage and also tempering before serving.

To meet this, it is well known in the art to provide portable storage devices for butter. One example is by way of example found in W02006/100476. The storage device comprises a closeable container, a means for maintaining a predetermined temperature with the container irrespectively of the ambient temperature and an internal power source. The storage device further comprises a thermoelectric module.

Consumers are becoming more and more aware of raw material quality and also cooking and baking. This also involves a healthy lifestyle. Thus, people want to take control on what they eat and amounts thereof. There is hence a need to provide a storage device which overcomes or minimizes these problems.

Summary

One object of the present invention is to provide a storage device suitable for a fatty food product such as butter or cheese that allows an easy temperature control during storage and also tempering before serving.

Another object is to provide a storage device that allows a good food hygiene.

Yet another object is to provide a storage device that allows the consumer to control the amount of butter removed or remaining in the storage device.

Further, the storage device should allow a reduced waste of food. These and other objects are solved by a storage device for a fatty food product, such as butter or cheese, comprising: a housing, a closeable food container, a tempering unit and a control unit, wherein the closeable food container is configured to contain the fatty food product and to be removably arranged in the housing; the housing comprises an insulation and a cooling box, the cooling box being configured to removably receive the closable food container; and the tempering unit is configured to control the temperature of the interior of the closable food container based on a signal from the control unit. The storage device is characterized by that the storage device further comprises a scale configured to communicate, to the control unit, a detected weight information relating to the fatty food product to be contained in the closable food container; and that the control unit is configured to process and communicate information relating to the detected weight information of the fatty food product to a consumer.

In the context of the invention, the term“fatty food product’ , should be understood to encompass any fatty food product having a substantially solid structure at room temperature. Thus, the term should be understood to include any animal or vegetable fat based product, such as butter, margarine or cheese.

In the context of the invention, the term“scale” should be understood as an arrangement that is configured to detect weight information. The detected weight information relates directly or indirectly to the weight of the fatty food product. The weight information is detected by the scale comprising at least one load cell configured to act as a detector.

By the invention, a storage device is provided that first of all can ensure that the fatty food product, by the tempering unit may be stored at a proper temperature to ensure expected life length and a good food hygiene. Further, by the storage device comprising a scale, the consumer may receive information relating to the amount of fatty food product present in the closeable food container. Since the information, by the scale, relates to detected weight information, this information can be presented to the consumer in a number of ways. As non-limiting examples, the detected weight information can be used to provide information relating to removed amount of food at a specific occasion, remaining amount of food and/or calculation of calories related to the removed amount. The type of information and the way of presenting it to the consumer is determined by an inherent logic provided by the control unit.

By the tempering unit, the fatty food product will have a temperature, which may be chosen to correspond to a desired serving temperature and also to a desired storage temperature. The control unit may be configured to allow the consumer to set one or both temperatures. The temperatures may be freely chosen by the consumer, or by selecting one or several preset set-point temperatures. In the case of the fatty food product being butter, this means that it will be greatly facilitated to remove a desired amount of butter and especially remove tempered butter, without undue smearing of the closable food container. This allows a pleasant presentation to the consumer during serving in terms of visual appearance and also texture wise. Further, it also reduces food waste in the long term since the risk of the butter getting too soft and smearing is greatly reduced.

By the closeable food container being removably arranged in the housing, it is easy to remove the container and clean the same in order to maintain a good food hygiene.

The scale may comprise at least three load cells, each load cell being configured to detect weight information relating to the fatty food product, and wherein the control unit is configured to determine a sum of the weight information determined by the individual load cells. By using several load cells and determining a sum of the detected values, the accuracy of the determined weight information may be improved. It is to be understood that fewer of more than three load cells may be equally used. However, an advantage of using three load cells, is that this allows a compensation for any surface irregularities on the surface on which the storage device is intended to rest.

The at least three load cells may be arranged in a non-linear pattern.

Thereby the load cells may better accommodate for any surface irregularities on the surface on which the storage device is intended to rest.

The at least three load cells may be arranged in a horizontally extending interface between a support element and an outer shell which is configured to at least partly enclose the insulation; in a horizontally extending interface between the support element and the insulation; in a horizontally extending interface between the insulation and the outer shell; in a horizontally extending interface between the cooling box and the insulation; or in a horizontally extending interface between the food container and the cooling box. By arranging the individual load cells in a horizontally extending interface, the control unit must only consider the vertical force component from each load cell.

Each of the at least three load cells may be arranged to have a point-like contact with a support surface, the support surface being formed by the bottom wall of the outer shell, the insulation, the cooling box or the support element. It is to be understood that the support surface depends on the position of the load cell. The term“point like contact’ should in the context of the invention be understood as a having a contact area that is substantially smaller than the horizontal foot print of the individual load cell.

The tempering unit may be configured to control the temperature of the interior of the closable food container based on a signal from the control unit, which signal relates to a set-point temperature. The set-point temperature may represent one of several fixed temperature values from which the consumer may chose on her own discretion. Alternatively, the set-point temperature may represent a temperature value that the consumer may freely adjust via a user interface. Depending on in which position the temperature is measured, this temperature can either directly or indirectly relate to the temperature of the food product contained in the food container.

The control unit may be configured to process information relating to the detected weight information to determine a weight or a weigh difference, and to further communicate information relating to this determined weight or weight difference to the consumer. This may by way of example be performed before serving, during serving or at the time of filling the closeable food container with new contents.

The control unit may further be configured to control the tempering unit and to process and communicate, to the consumer, information relating to at least the temperature of the interior of the closable food container.

The storage device may further comprise a user interface allowing

presentation of information to the consumer, and a setting unit allowing setting of the control unit. As non-limiting examples, the user interface may be in the form of a digital display or one or more LED lights. The LED lights may have different colors. As non-limiting examples, the setting unit may be a key, a keypad or a touch display.

According to another aspect, the invention relates to use of a storage device according to any of claims 1 to 9 to store and temper butter, margarine or cheese.

Further objects and advantages of the present invention will be obvious to a person skilled in the art reading the detailed description given below describing different embodiments.

Brief description of the drawings

The invention will be described in detail with reference to the schematic drawings.

Fig. 1 discloses a partially exploded view of one embodiment of a storage device according to the invention.

Figs 2a, 2b discloses two views of the outer shell. Fig. 3 discloses one embodiment of the insulation.

Fig. 4 discloses one embodiment of the cooling box.

Fig. 5 discloses one embodiment of the closable food container.

Fig. 6 discloses one embodiment of the lid.

Fig. 7 discloses an exploded view of the housing and the tempering unit. Detailed description

In the following one embodiment of the storage device will be described. The storage device 1 will be described in its normal use as standing on a horizontally extending support surface, such as a kitchen worktop (not disclosed). The storage device 1 will be exemplified as containing butter.

Starting with Fig. 1 the overall design of the storage device 1 will be disclosed. The storage device 1 comprises a housing 2. The housing 2 may structurally be divided, starting from below, into an outer shell 100, an insulation 200 and a cooling box 300. The outer shell 100, the insulation 200 and the cooling box 300 are provided to the consumer as one unitary piece by being connected by fixing means such as screws 110.

The cooling box 300 is configured to removably receive a closeable food container 400. The food container 400 is closeable by a lid 500. The storage device 1 may further comprise an optional kitchen tool 1200, such as a butter knife.

Now turning to Figs. 2a and 2b, the outer shell 100 is formed as a rectangular box 101 comprising a bottom wall 102 and four side walls 103 which together define a cavity 104 having an access opening 105 opposite the bottom wall 102.

The bottom wall 102 comprises four feet 106 formed as recessed cavities. The feet 106 are arranged in the corner portions, i.e. on a distance from each other. The feet 106 form a vertical gap 107 between the bottom wall 102 of the outer shell 100 and a support surface on which the storage device 1 is intended to stand during normal use.

The bottom wall 102 comprises a plurality of through-going holes 108 allowing an air-flow (to be discussed below) to pass into the outer shell 100. As can be seen when comparing the top and bottom views of the bottom wall 102, only some of the holes 108, those forming a circular pattern, are through-going holes for a fan to be discussed below. The other are blind holes.

The outer shell 100 may be formed by injection molding a plastic material or by press forming a metallic material. The outer surface of the outer shell 100 may be provided with a visually appealing design and surface. Now turning to Figs. 1 and 3, the outer shell 100 is configured to at least partially enclose the insulation 200. The insulation 200 is preferably made of an insulating material such as an expanded cellular plastics material. The insulation 200 comprises a bottom wall 201 and four side walls 202 which together define a cavity 203 having an access opening 204 opposite the bottom wall 201. The insulation 200 is configured to receive and partially enclose the cooling box 300.

The bottom wall 201 of the insulation 200 comprises a through-going opening 205. The through-going opening 205 is preferably arranged in a central position thereof. The purpose of the opening 205 is to allow receipt of a thermoelectric element, such as a Peltier element to be discussed below. It is to be understood that more than one thermoelectric element may be used, and that these can be received in one and the same opening 205 or in individual openings.

In a position when the insulation 200 is arranged in the outer shell 100, a compartment 206 is formed in an interface between one side wall of the insulation 200 and one side wall of the outer shell 100. In the disclosed embodiment, this compartment 206 has a vertical extension formed by a recess in the side wall 202 of the insulation 200. The compartment 206 is configured to receive a control unit to be described below.

The compartment 206 is configured to be arranged in communication with a through-going hole in a flange of the closeable food container 400 to thereby allow receipt of wiring from a user interface and a setting unit which are configured to be supported by the flange of the food container 400. This will be discussed below.

The bottom wall 201 of the insulation 200 comprises recesses 207 extending along the opposing short sides. The recesses 207 are configured to receive optional support elements to be discussed below.

Now turning to Figs 1 and 4, the cavity of the insulation 200 is configured to receive and at least partially enclose the cooling box 300. At least a portion of a bottom wall 301 of the cooling box 300 is configured to abut the bottom wall 201 of the insulation 200.

The cooling box 300 is formed as a rectangular box comprising the bottom wall 301 and four side walls 302 which together define a cavity 303 having an access opening 304 opposite the bottom wall 301. The access opening 304 is surrounded by a circumferential flange 305. The flange 305 extends substantially in parallel with the bottom wall 301. The flange 305 preferably has a width that is sufficient to cover and hide an inevitable interspace that is formed between the side walls 202 of the insulation 200 and the side walls 302 of the cooling box 300. One side of the flange 305, in the disclosed embodiment the part of the flange that extends along a short wall, comprises a depression 306. The depression

306 is configured to receive a user interface 600, which user interface is best seen in Fig. 7. The user interface 600 allows presentation of information to the consumer. As non-limiting examples, the user interface 600 may be in the form of a digital display or one or more LED lights 602. The LED lights 602 may have different colors. The depression 306 is further configured to receive the setting unit 700. As non-limiting examples, the setting unit 700 may be a key 701 , a keypad or a touch display. The function of the user interface 600 and the setting unit 700 will be discussed below. The user interface 600 and the setting unit 700 may be provided as separate units or be integrated in one unit.

The depression 306 further comprises at least one through-going opening

307 allowing passage of necessary wiring allowing the user interface 600 and the setting unit 700 to communicate with the control unit 800 to be arranged in the compartment 206 in the interface between the outer shell 100 and the insulation 200, see Fig 7.

The cooling box 300 is preferably formed in one piece by e.g. injecting molding a plastic material. It is to be understood that the cooling box 300

alternatively may be provided by press forming a metallic material. It is preferred that the inner walls are smooth to allow an easy cleaning by wiping-off with a cloth.

Now turning to Fig. 5, the closeable food container 400 is disclosed. The food container 400 is a formed as a rectangular box comprising a bottom wall 401 and four side walls 402 which together define a cavity 403 having an access opening 404 opposite the bottom wall 401. The access opening 404 is surrounded by a circumferential flange 405. The flange 405 extends substantially in parallel with the bottom wall 401 and also in parallel with the flange 305 of the cooling box 300. When the food container 400 is arranged in the cooling box 300, the flange 405 of the food container 400 overlaps and covers the flange 305 of the cooling box 300. Thereby, the electronics in the storage device 1 is fully separated from the food container 400. The food container 400 may be lifted off to be cleaned.

At least a portion 406 of the flange 405 of the food container 400 that is configured to overlap the user interface 600 and the setting unit 700 in the flange 305 of the cooling box 300 may be made of a transparent material. Thereby, when the food container 400 is arranged in the storage device 1 , the consumer can easily access information communicated by the control unit 800 via user interface 600 since this is made visible through the transparent material. The thickness and/or the flexibility of a portion 406a of the flange 405 that is configured to overlap the setting unit 700 in the flange 305 of the cooling box 300 may be adapted so that that the consumer may operate the setting unit 700 through that portion 406a. Alternatively, a through-going hole for the setting unit 700 may be arranged in that flange portion.

The food container 400 may be formed in one piece by e.g. injecting molding a plastic material. Alternatively, the food container 400 may be formed by press forming a metallic material. It is to be understood that the food container 400 may be formed in a number of ways and that the design and choice of material should not be restricted to the one disclosed. No matter type of material and forming method, it is essential that the chosen material is suitable for food and also easy washable.

The access opening of the food container 400 is configured to be closed by a removable lid 500, see Fig. 6. The lid 500 preferably rests on and covers the flange 405 of the food container 400. It is to be understood that at least a portion of the lid may be made by a transparent material to allow visual access to the information communicated by the control unit 800 via the user interface 600.

Now turning to Fig 7, an exploded view of the storage device is disclosed. To ease understanding, the outer shell 100, the food container 400 and the lid are omitted.

The storage device 1 comprises a tempering unit 900 to allow tempering of the cooling box 300 and thereby indirectly the fatty food product to be contained in the food container 400. The tempering unit 900 comprises a heat sink 901 , a thermoelectric element 902, a fan 903 and a non-disclosed temperature sensor. The non-disclosed temperature sensor may by way of example be configured to detect the temperature of the cooling box 300. The skilled person will understand a suitable position of such temperature sensor. Also, the skilled person will understand how to correlate temperature of the cooling box 300 with the temperature of the fatty food product.

The heat sink 901 is in the disclosed embodiment formed as a unitary body with a substantially flat upper surface 904 configured to face and contact the exterior surface of the bottom wall 201 of the insulation 200, and a lower surface 905 configured to face away from the bottom wall 201 of the insulation 200. The lower surface 905 of the heat sink 901 is provided with a plurality of cooling flanges 906.

The heat sink 901 is preferably formed by a metallic material such as Aluminum.

Now turning to Fig. 7 anew, the thermoelectric element 902, being a Peltier element, is configured to be arranged in the interface between and in direct contact with the upper surface 904 of the heat sink 901 and the bottom wall 301 of the cooling box 300. This direct contact is allowed by the thermoelectric element 902 being received in the through-going opening 205 in the bottom wall 201 of the insulation 200. This opening 205 is best seen in Fig. 3.

The thermoelectric element 902 is arranged to communicate with and be controlled by the control unit 800 via non-disclosed wiring.

To facilitate and enhance thermal dissipation from the heat sink 901 , the fan 903 is arranged in a position below the heat sink 901. The fan 903 is arranged to direct an air flow towards the heat sink 901 , whereby the air will be guided along the cooling flanges 906 towards their outer edges while removing heat. Since the storage device 1 is configured to be standing on its feet 106 on a support surface, a gap 107, see Fig. 2 is formed between the bottom wall 101 of the outer shell 100 and the support surface. Further, by the bottom wall 101 of the outer shell 100 being provided with a plurality of through-going holes 108, the fan 903 may draw air from the ambience into the interior of the outer shell 100 and towards the heat-sink 901. The air is allowed to return to the ambience via openings arranged in the side walls of the outer shell 100.

The fan 903 is arranged to communicate with and be controlled by the control unit 800 via non-disclosed wiring.

Now turning to Fig. 7 anew, the storage device further comprises a scale 1000. In the disclosed embodiment, the scale 1000 comprises four load cells 1001. It is preferred that at least three load cells 1001 are used. It is preferred that the load cellsl 001 are distributed in an array, forming a non-linear pattern. Additionally, it is preferred that the load cells 1001 are arranged on a distance from each other, such as in the corner portions of the storage device 1 , to allow accommodation of any surface irregularities.

In the disclosed embodiment, the load cells 1001 are arranged in horizontally extending interfaces between the insulation 200 and support elements 1002 that are arranged between the bottom wall 201 of the insulation 200 and the inner bottom wall 101 of the outer shell 100. Two support elements 1002 are arranged, one extending along each short side of the insulation 200. Each support element 1002 has a U-shape forming two projections 1003 configured to extend into the

corresponding projections in the outer shell 100.

Each load cell 1001 has a point-like contact 1004 with its lower support surface. The point-like contact 1004 has a contact area that is substantially smaller than the horizontal foot print of the individual load cell. In the disclosed embodiment the lower support surface is formed by the interior of the respective support elements 1002.

Each load cell 1001 is connected to the control unit 800 via non-disclosed wiring. Each load cell 1001 is configured to detect weight information relating to the fatty food product to be contained in the food container 400.

As given above, the control unit 800 is arranged in the compartment 206 that is formed between the outer shell 100 and the insulation 200. It is to be understood that the control unit 800 may be arranged in other positions with remained function.

The control unit 800 comprises (not disclosed) at least a logic circuitry, an input device (not disclosed) and an output device (not disclosed) allowing the control unit 800 to communicate with features in the storage device 1 such as the fan 903, the thermoelectric element 902, the load cells 1001 , the user interface 600, the setting unit 700 and one or more temperature sensor.

The logic circuitry may, in a manner well known to the skilled person, be arranged to comprise (not disclosed) a processor, a memory device, a FPGA (Field- Programmable Gate Array) or an ASIC (Application Specific Integrated Circuit). The logic circuitry may be arranged on a PCB (Printed Circuit Board).

The storage device 1 is configured to be powered by being connected to a DC power source. In the disclosed embodiment, the storage device 1 and its control unit 800 may be configured to be connected to the power source via an input device 801 arranged in one of the support elements 1002. This input device 801 is in turn connected to the control unit 800.

It is to be understood that the control unit 800 optionally may be provided with a (non-disclosed) battery.

In the following the operation of the storage device 1 will be explained. The invention will be exemplified with the fatty food product being butter. The consumer arranges a block of butter (not disclosed) in the food container 400, arranges the food container 400 in the cooling box 300 and puts on the lid 500.

The storage device 1 is connected to the power source, whereby the control unit 800 together with the tempering unit 900 is powered.

The consumer sets, via the user interface 600 and the setting unit 700 a desired set-point temperature of the cooling box 300 and hence indirectly the desired set-point temperature of the butter.

The tempering unit 900 tempers the cooling box 300 to reach and maintain the desired set-point temperature. This is made by the thermoelectric element 902 being in direct contact with the cooling box 300 which thereby tempers the same and indirectly the butter in the food container 400. The thermoelectric element 902 is controlled by the control unit 800. Further, the control unit 800 is configured to start and stop the fan 903 to dissipate heat by an air flow towards the heat sink 901 when determined to be necessary in view of the desired set set-point temperature.

At the point of serving, the storage device 1 is optionally intended to be disconnected from the power source and be moved to the serving place, such as a dining table.

The skilled person understands that the complexity of the logic circuitry of the control unit 800 determines the type and amount of information sharing between the control unit and the consumer. The invention is accordingly not limited to how the temperature or any other information is set or presented.

As non-limiting examples, the consumer may by way of example be able to set, via the user interface 600 and the setting unit 700, a set-point temperature which represents the desired temperature of the butter. The set-point temperature may be presented in a number of ways. In one example the set-point temperature is presented digitally, i.e. in degrees Celsius or Fahrenheit on the user interface 600. The consumer can be by way of example be asked to choose from a limited number of set-point temperatures representing well recognized and recommended serving temperatures and hence recommended set-point temperatures.

In another embodiment, the set-point temperature may be presented to the consumer via the user interface 600 as a number of lit LED lamps 601 or different coloring representing a hardness of the butter from soft to hard. No matter way, the consumer can communicate with the control unit 800 via the setting unit 700. The information is made visible to the consumer via the transparent flange portion in the food container 400.

The storage device 1 further comprises the scale 1000 comprising the load cells 1001. Each load cell 1001 is configured to detect weight information relating to the fatty food product. This information is communicated to the control unit 800 which in turn is configured to process and communicate information relating to the detected weight information of the fatty food product to the consumer via the user interface 600. This is done by the control unit 800 calculating the sum of the weight information received from the individual load cells 1001. By determining the sum, a better accuracy in the detected weight information can be provided.

The weight information can be presented to the consumer in a number of ways. In one example the weight information is presented digitally, e.g. in grams, via the user interface. The weight information can by way of example be presented as weight of the removed amount of butter or the weight of the amount of butter remaining in the food container 400. The weight information may also be illustrated by the LED lamps 601 in combination with numbers in grams (not shown) printed on the flange 405 of the food container 400. Thus, lit lamps together with the numbers present the weight information.

The control unit 800 may be configured to process the detected weight information and convert the same to calories and present the same to the consumer on the user interface 600. It is to be understood that the invention is not to be limited as to how the detected weight information is processed or presented.

Now turning to Fig. 1 anew. One side of the storage device 1 is provided with an optional recess 1201 configured to receive a tooling, such as a knife 1200.

Complementary recesses are formed in the food container 400, the cooling box 300, the insulation 200 and the outer shell 100. The recess 1201 preferably has such width that a waist portion 1210 of a handle 1220 of the knife 1200 fits by friction in the recess 1201 without the knife blade 1230 contacting the fatty food product. This allows maintenance of food hygiene.

It is to be understood that other means than friction may be used to hold the knife 1200 in position in the recess 1201. One example is a magnet.

It is to be understood that the load cells 1001 with remained function may be arranged in other positions. The load cells 1001 may by way of example be arranged in a horizontally extending interface between a support element 1002 and an outer shell 100 which is configured to at least partly enclose the insulation 300.

Alternatively, the support elements 1002 may be omitted, whereby the load cells 1001 may be arranged directly in a horizontally extending interface between the insulation 200 and the outer shell 100. The load cells 1001 may also be positioned in a horizontally extending interface between the food container 400 and the cooling box 300 or in a horizontally extending interface between the cooling box 300 and the insulation 200.

The storage device 1 has been described as being generally rectangular. It is to be understood that the same principle is equally applicable to other geometries.

The fatty food product to be contained in the food container 400 can be arranged therein either freely, or be contained in a cup, such as a butter cup in which the fatty food product is provided by the supplier.

Depending of the complexity of the logic circuitry of the control unit 800, the control unit 800 may be configured to communicate with other devices via systems such as WiFi, NFC and Bluetooth.