The invention relates to a method for preparing a beverage suitable for consumption from at least two ingredients to be dissolved and/or extracted and an amount of liquid such as water which is supplied to the ingredients, the method comprising the following steps:
The invention also relates to an apparatus for preparing a beverage suitable for consumption from two ingredients to be dissolved and/or extracted and an amount of liquid such as water which is supplied to the ingredients, the apparatus being provided with a first holder system in which a first ingredient is included, the first holder system being provided with at least one inflow side and at least one outflow side, the apparatus being further provided with a second holder system in which a second ingredient is included, the second holder system being provided with at least one inflow side and at least one outflow side.
Such a method an apparatus are known from, for instance, European patent application 1398279.
With the known method an apparatus, the first holder system consists of a coffee pad manufactured from filtering paper which is filled with ground coffee, and the second holder system of a milk pad manufactured from filtering paper which is filled with a rigid body and a powder milk/creamer. Here, the first and second holder systems are placed in a collecting container. The coffee pad then lies on top of the milk pad.
In use, hot water is supplied to the holder so that the hot water flows through the coffee pad and the milk pad. When the coffee pad is flowed-through with hot water, coffee extract is formed. This coffee extract also flows through the milk pad, whereby the milk/creamer dissolves in the coffee extract. The coffee extract with the dissolved milk therein then leaves the collecting container via an outflow opening provided in a bottom of the collecting container.
Although the milk powder/creamer, when it is dissolved in water, has a white colour, the beverage prepared on the basis of the milk pad has a light brown colour as the milk powder/creamer is dissolved in the dark brown coffee extract.
A further object of the invention is to provide a method and apparatus with which, if so desired, further variations such as colour variations in the beverage to be obtained on the basis of the first and second ingredients, are possible.
In accordance with the method according to the invention, it applies that a first part of the amount of liquid such as hot water is supplied to the first holder system so that the first holder system is flowed-through with the liquid whereby the first ingredient is dissolved or extracted for obtaining a first beverage; a second part of the amount of liquid is supplied to the second holder system so that the second holder system is flowed-through with the liquid such that the second ingredient is dissolved or extracted for obtaining a second beverage part; and the first beverage part and the second beverage part are combined for obtaining the beverage.
As the first and second beverage parts are prepared separately from each other, the first and the second beverage part can additionally, and in mutually different ways, be processed before being combined. In the second beverage part, additionally, air may be whipped in while with the first beverage part, this does not happen.
As the first and the second beverage parts are prepared separately from each other, furthermore, if desired, combining the first and second beverage parts can be carried out in a known manner such that the first and second beverage part do not completely mix. This provides further possibilities for variation in the preparation of the beverage. For instance, the first and second beverage part can be combined such that the second beverage part does not completely mix with the first beverage part. As a result, at least a part of the second beverage part can retain its own colour. The first and the second beverage part can for instance be combined in a third container such as a cup or a mug. Here, for instance, in a known manner, air may further be whipped into the second beverage part. Then, the second beverage part is provided with froth. When the first and second beverage parts are combined, this results in the froth floating on the rest of the beverage. Here, this froth can retain the colour of the second beverage part. If, for instance, the first ingredient comprises ground coffee and the second ingredient a milk powder/creamer, thus, a first beverage part in the form of a coffee extract and a second beverage part in the form of frothed milk can be obtained. When these beverage parts are combined in a third container, the frothed portion of the milk will float on the rest of the beverage consisting of a mixture of coffee extract and milk. Thus, a perfect cappuccino can be obtained.
Whipping air into the second beverage part can, for instance, be obtained by supplying a jet of the second beverage part to a buffer reservoir as described in European patent application 878158 or by supplying a jet of the beverage to a roughened surface as described in European patent application 1317200. Other known methods of whipping in air are possible too. If it is desired that no air is whipped into the first beverage part, the buffer reservoir or the roughened surface may be automatically replaced with a tube guiding the first beverage to the third container without air being whipped in. Also, the second ingredient can be provided with a substance developing froth when a liquid such as water is supplied to the second substance, while the first ingredient does not comprise such a substance.
Also, for instance first, the second part of the amount of liquid can be supplied to the second holder system and, after that, the first part of the amount of liquid can be supplied to the first holder system. The result is that first, the second beverage part is prepared and after that, the first beverage part is prepared.
In particular, here, first of all, the milk is supplied in the form of a jet to the third container. Upon impact of the milk in the third container, air is whipped into the milk. As a result, the third container is filled with milk comprising a froth layer. Thereupon, the coffee extract is supplied in the form of a jet to the third container. Upon impact of the coffee jet on the frothed milk, a small brown dot is formed. Then, the third container is filled with the coffee extract and the frothed milk will float on the coffee extract. Also when the coffee itself is provided with a fine bubble froth layer since air is whipped into the coffee, this process will occur. Thus, according to this variant of the invention too, a cappuccino can be obtained.
The apparatus according to the invention is characterized in that the apparatus is further provided with liquid supply means for supplying to the inflow side of the first holder system a predetermined first part of the amount of liquid so that the first holder system is flowed-through with the liquid, whereby the first ingredient is extracted or dissolved for obtaining a first beverage part which leaves the first holder system via the outflow side of the first holder system, and for supplying to the inflow side of the second holder system a predetermined second part of he amount of liquid so that the second holder system is flowed-through with the liquid, whereby the second ingredient is extracted or dissolves for obtaining a second beverage part which leaves the second holder system via the outflow side of the second holder system, the apparatus being further designed for dispensing the first beverage part and the second beverage part to a receiving container such as a cup or mug.
The invention will presently be further elucidated with reference to the drawing. In the drawing:
In
The apparatus is further provided with a second holder system 16 in which a second ingredient 18 is included. The second ingredient 18 is also a substance soluble in a liquid such as water and/or extractable with the aid of a liquid such as water. In this example, the second ingredient consists of a milk powder/creamer.
In the example, the second holder system 16 is provided with a second pouch 20 comprising the second ingredient 18. The second pouch is further provided with a second covering 22 in which the second ingredient 18 is included. The second covering is manufactured, at least partly, from a sheet-shaped material such as filtering paper, transmissive to a liquid such as water and forming a barrier to the second ingredient. In this example, the entire second covering is manufactured from a sheet-shaped material such as filtering paper and consists of a top sheet 21 and a bottom sheet 23. Further, in the second covering, a rigid grid structure 24 in included (shown in part) of a type described in European patent application 1398279.
The second holder system 16 is provided with an inflow side 26 via which the liquid can be supplied to the second holder system, and an outflow side 28 via which the liquid supplied to the second holder system 16 can leave again.
The apparatus is further provided with a collecting container 30 in which the first and the second holder system 2, 16 are included. The apparatus is further provided with a lid 32 with which the collecting container 30 is sealed off fluid-tightly. To this end, between the lid 32 and the collecting container 30, a sealing ring 34 is included. In this example, the apparatus is further provided with a hot water unit 36, designed for dispensing hot water under pressure. In this example, the lid 32 is of hollow design. At an underside of the lid, the lid is provided with a number of outflow openings 38. The hot water unit 36 is connected by means of a tube 40 to the lid 32 for supplying, in use, hot water to the lid. This water will then leave the lid via the outflow openings 38 and is thus supplied to the collecting container 30. The collecting container 30 is provided with a bottom 42 comprising an annular outside part 44 and a dish-shaped inside part 46. A top side of the collecting container forms an inflow opening 48 of the collecting container. Further, in the bottom 42 of the collecting container, at least one outflow opening 50 is provided. In the collecting container, a liquid flow path 50 extends from the inflow opening 48 of the collecting container to the outflow opening 50 of the collecting container. As is clear from the drawing, the first and second holder system 2, 16 are included in the liquid flow path 52 so that the first and second holder system each form a barrier in the liquid flow path. Here, the first holder system is upstream of the second holder system in the liquid flow path of the collecting container.
The liquid supply means are further provided with a sealable and releasable bypass channel 54, extending from the inflow side of the first holder system at a position 56 outside the first holder system, to the inflow side of the second holder system at a position 58 outside the second holder system. In the bypass channel 54 a regulating valve 60 is included for adjustably sealing and releasing, or partly releasing, the bypass channel 54.
In this example, the apparatus is further provided with an air whip-in unit 62 of which an inlet opening 64 is in fluid communication and/or is formed by the outflow opening 50 of the collecting container 30. The air whip-in unit 62 is further provided with an outflow opening 66 for dispensing the ready beverage. The air whip-in unit may be designed as described in European patent application 1371311.
The apparatus is further provided with a control device 68 which generates control signals S for controlling or activating the hot water unit 36 and the valve 60.
The operation of the apparatus described up to this point is as follows.
By opening the lid 32, in advance, the second holder system 16 and the first holder system 2, respectively, are placed in the collecting container 30. In this example, the first holder system rests on top of the second holder system. As, in this example, the second holder system is provided with the pouch 20 in which the rigid grid structure 24 is included, the first holder system which, in this example, is provided with the pouch 4, can rest well on the first holder system without deforming.
After the first and second holder systems are placed in the collecting container, the collecting container 30 is closed off with the aid of the lid 32. Thereupon, the control device 68 activates the hot water unit 36. The result is that the hot water unit 36 begins supplying hot water to the lid 32. This hot water will leave the lid 32 via the outflow openings 38 of the lid, and be led to the inflow side 11 of the first holder system. At the same time the hot water unit is started or, in this example, in any case before the hot water flowing via the lid into the collecting container, begins building up pressure, the bypass valve 60 is opened by the control device 68. The result is that the water, choosing the line of least resistance, flows via the bypass channel 54 to the position 58 in the collecting container. Thus, this water flows to the inflow side 26 of the second holder system. In order to leave the collecting container 30 via the outflow opening 50, the hot water will then begin to flow through the second holder system. Then, again, the water chooses the line of least resistance, and will flow via the inflow side 26 of the second holder system, that is, via the top sheet 21 of the second pouch 20, through the pouch to then leave the second holder system via the outflow side 28, that is via the bottom sheet 23 of the second pouch 20. Then, the second ingredient, that is the milk powder/creamer, will dissolve in the hot water. The hot water with the creamer dissolved therein then flows via the outflow opening 50 of the collecting container 30 to the air whip-in unit 62. In the air whip-in unit 62, in a known manner, air is whipped into the hot water with the creamer/milk powder dissolved therein, thus forming a second beverage part. The second beverage part flows via the outflow opening 66 of the air whip-in unit 62 to a mug 70. Thus, the mug 70 is partly filled with the second beverage part which, in this example, consists of frothed milk.
The control device 68 is designed for supplying a predetermined, total amount of liquid to the ingredients. As already described hereinabove, of this total amount of liquid, a second part is supplied to the second holder system for obtaining the second beverage part. The moment the hot water unit 36 has supplied the second part of the total amount of liquid, the control device 68 shuts the valve 60. The result is that the hot water which is further supplied to the collecting container and will thereto also choose the line of least resistance, can no longer flow through the bypass channel 54. Instead thereof, the hot water which is led to the inflow side of the first holder system will enter, via the inflow side of the first holder system, that is via the top sheet 10 of the first pouch, the pouch and flow through the pouch to thereupon leave the first holder system via the outflow side, that is, in this example, via the bottom sheet of the first pouch. Thus, a predetermined first part of the predetermined amount of liquid is supplied to the first holder system so that the first holder system is flowed-through with the liquid, while the first ingredient is extracted for obtaining a first beverage part. In this example, the first beverage part is formed by a coffee extract. The coffee extract will then be supplied from the outflow side of the first holder system and via the inflow side of the second holder system to the second holder system, and, thereupon flow from the second holder system via the outflow side of the second holder system. In other words, the coffee extract will then flow through the second pouch. As the second pouch has already, at an earlier stage, been flowed-through by the second amount of water, in this example, at least the greater portion of the milk powder/creamer will already have dissolved in the second pouch. When the coffee extract flows through the second pouch, it may be so that a further portion of the second ingredient also dissolves and begins forming part of the first beverage part. Then, the first beverage part will leave the collecting container 30 via the outflow opening 50. The air whip-in unit 64 will then, again, whip air into the coffee extract so that a coffee extract with a fine bubble froth layer is obtained. Then, the coffee extract is supplied in the form of a jet to the mug 70. The mug 70 is filled with coffee extract while the frothed part of the second beverage part, that is the frothed milk, will float on the coffee extract. Thus, a beverage is obtained in the form of a cappuccino while the cappuccino is provided with an attractive, white layer of frothed milk.
When the first part of the total amount of hot water to be dispensed has been dispensed to the collecting container, the control device will deactivate the hot water unit. In this example it therefore applies that a first part of the amount of liquid, in this example hot water, is supplied to the first holder system so that the first holder system is flowed-through with liquid, thereby extracting the first ingredient for obtaining a first beverage part. Also, a second part of the amount of liquid, in this example hot water, is supplied to the second holder system so that the second holder system is flowed-through with the liquid so that the second ingredient is dissolved for obtaining the second beverage part. Also, the first and the second beverage part are combined for obtaining the beverage. It also applies in this example that first, the second part of the amount of liquid is supplied to the second holder system and after that, the first part of the amount of liquid is supplied to the first holder system. It further applies that the first beverage part from the first holder system is also supplied to the second holder system and, after that, from the second holder system, is combined with the first beverage part.
In this example, viewed in time, the dispensing of the first amount of liquid links up perfectly to the dispensing of the second amount of liquid. The fact is that the moment at which dispensing the second amount of liquid is started is determined by the moment the valve 60 is opened. However, this is not required. It is also conceivable that, after the second amount of liquid has been dispensed, the control device 68 deactivates the hot water unit to then close the valve. After the valve is closed, the control unit can, again, activate the hot water unit.
It is also conceivable that the hot water unit supplies the total amount of liquid as indicated in the above-described example in one go to the collecting container, while after the second amount of liquid has been supplied to the collecting container 60, the control device 68 slowly closes the valve 60. When the valve has closed completely, the first part of the total amount of liquid is supplied to the collecting container 30. During closing, a third part of the total amount of liquid is supplied to the first and second holder system in a variable manner. Gradually, less and less of the third part of the amount of liquid will be supplied directly to the second holder system and an increasing portion of the third part of the amount of liquid will be supplied directly to the first holder system. Here, a gradual transition is involved instead of a switched transition as described in the above example.
It is also conceivable that the valve is designed such that it releases the bypass channel when the pressure in the bypass channel is below a predetermined value, while the liquid supply means are further designed for dispensing, when the second amount of liquid is being dispensed to the inflow side of the first holder system, the second amount of liquid with a pressure which is lower than the predetermined value so that the valve of the bypass channel is opened, and for dispensing, when the first amount of liquid is being dispensed to the inflow side of the first holder system, the first amount of liquid with a pressure which is higher than the predetermine value so that the valve of the bypass channel is closed.
In this example, the control device 68 can control the hot water unit in a manner such that first of all, hot water is dispensed with a pressure that is lower than the predetermined value. During this period, the second amount of water is dispensed. Then, the control device 68 ensures that the hot water unit dispenses water with a pressure that is greater than the predetermined value. The valve will then close. During this period, the first amount of water is dispensed. Then, the valve 60 needs not be directly controlled by the control device. Instead thereof, the valve reacts to the pressure of the hot water which is supplied to the holder system 30, and is therefore controlled indirectly by the control device 68. Such variants are each understood to fall within the framework of the invention.
In
In this example, the air whip-in unit 62 is connected to the outflow opening 86 of the second holder 80. The apparatus according to
Completely analogously to that what is described hereinabove, the control device 68 will ensure that first, the second part of the amount of hot water is supplied to the collecting container 30 while the valve 60 is open. The result is that the second part of the amount of water that is led to the in-feed side of the first holder system will not flow through the first holder system but will flow, via the bypass channel 54, to the in-feed side of the second holder system. This second part of the amount of hot water will thus flow through the second pouch while the second ingredient dissolves. Then, the hot water with the second ingredient dissolved therein will leave the pouch via the bottom sheet of the pouch. After this, the thus formed second beverage part will leave the second holder via the outflow opening 86. Hence, again, the second beverage part is supplied under pressure to the air whip-in unit 62 so that air is whipped into the second beverage part. Hereupon, the second beverage part will flow, in the form of a (weak) jet, from the air whip-in unit 62, into the mug 70. Therefore, first of all, the mug is filled with the second beverage part which, in this example, consists of frothed milk. Then, completely analogously to what is described in relation to
It is noted that both with the apparatus according to
It is also conceivable that the nozzle 91 and the buffer reservoir 92 are omitted so that, in fact, the outflow opening 78 remains. Then, the second ingredient may be provided with the substance which develops froth when the second ingredient dissolves in a liquid such as water, in particular hot water. According to the invention, something similar may in general be utilized. Such variants are all understood to fall within the framework of the invention.
In
Number | Date | Country | Kind |
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1028134 | Jan 2005 | NL | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/NL06/00046 | 1/26/2006 | WO | 00 | 4/22/2008 |