The invention relates to a method for preparing a beverage suitable for consumption such as cappuccino. Further, the invention relates to an assembly for use in an apparatus for the preparation of the beverage. In addition, the invention relates to a collecting container and an additive holder of the assembly. The invention also relates to an apparatus for the preparation of the beverage.
Such a method is known from EP 075 68 44. In the known methods, an extraction pad in the form of a coffee pad filled with ground coffee and an additive holder in the form of a creamer pad filled with a creamer are inserted into a holder of a conventional espresso machine while the coffee pad rests on the creamer pad. Thereupon, in a customary manner, the preparation cycle is carried out in which the coffee pad and the creamer pad are contacted with hot water and/or steam. With the known method, it is of importance that the holder has a void volume for obtaining froth with the cappuccino.
A drawback of the known method is that the amount of creamer that dissolves and the amount of froth and the nature of the froth formed (big and/or fine bubbles) is relatively poorly reproducible. The object of the invention is to provide a method with which this disadvantage can be met.
According to the invention, it holds that with the method for the preparation of a beverage suitable for consumption such as, for instance, cappuccino, use is made of at least one extraction pad at least filled with a product to be extracted such as ground coffee, and at least one additive holder at least filled with a soluble substance such as a flavouring and/or an odorant and/or a colorant, more in particular such as an instant and/or liquid creamer, the method further comprising the following method steps:
According to the method of the invention, the extraction pad does not rest on the additive holder because they are separated from each other by a mutual, intermediate space. As a result, during the preparation cycle, the position and the shape of the extraction pad in the collecting container are independent of the shape of the additive holder. This entails that the through-flow of the extraction pad is at least virtually independent of the degree of filling of the additive holder, also when it is designed as an additive holder, not form-retaining and manufactured from, for instance, filtering paper. The fact is that during a preparation cycle, the soluble substance will gradually dissolve so that the degree of filling is decreased and hence the shape of the not form-retaining additive holder changes. This latter has no influence on the position and the shape of the extraction pad. Also, the extraction pad cannot influence the shape and the position of the additive holder by direct contact between extraction pad and the additive holder when the additive holder is designed not to be form-retaining. Hence, the amount of soluble substance dissolving during a preparation cycle cannot be influenced by an unpredictable contact between extraction pad and the additive holder. The method can then be carried out repeatedly having, each consecutive time, a virtually similar result with respect to the beverage.
As, further, use is made of a nozzle to which the extract in which the soluble substance has dissolved is fed, a fine bubble froth layer is obtained. In case the product to be extracted comprises ground coffee and the soluble substance is a creamer, this has the character of a real cappuccino.
In particular it holds that the invention comprises a method wherein:
In particular, it further holds that the extraction pad and the additive holder are separated from each other by a separating body provided with at least one passage, while the extract is fed from the extraction pad via the at least one passage to the additive holder. By utilizing the separating body with the at least one passage, the extract can be fed to the additive holder in a predetermined manner.
In particular, it further holds that the separating body is provided with a separating plate comprising a plurality of passages so that the extract is fed to the additive holder at various positions of the additive holder. This has as an advantage that the amount of soluble substance dissolving in the additive holder during a preparation cycle can be maximized.
According to a preferred embodiment, it holds that the extraction pad and the additive holder together are inserted into a collecting container, the additive holder being placed downstream of the extraction pad, the extraction pad and the additive holder being positioned relative to each other with the aid of positioning means such that the extraction pad and the additive holder lie clear of each other.
Preferably, it then holds that for the provision of the positioning means, use is made of an extraction pad holder provided with a bottom on which the extraction pad rests while in the bottom at least one through-flow opening is provided for feeding the extract via the through-flow opening to the additive holder.
According to a highly advanced embodiment of the method, it further holds that the extraction pad and the additive holder are separated from each other by a separating body provided with at least one passage while the extract is fed from the extraction pad via the at least one passage to the additive holder.
Here, it preferably holds that the separating body is provided with a separating plate comprising a plurality of passages so that the extract can be fed, via the passages, to the additive holder at various positions of the additive holder. This special embodiment of the method too has as an advantage that in a predetermined manner, extract can be fed to the holder thus that, if so desired, the soluble substance dissolves as much as possible during a preparation cycle.
The assembly for use in an apparatus such as a coffee machine for the preparation of a beverage suitable for consumption such as cappuccino is provided with a collecting container comprising at least one inflow opening, at least one outflow opening and a liquid flow path extending from the inflow opening to the outflow opening, the assembly being further provided with at least one extraction pad at least filled with a product to be extracted such as ground coffee and at least one additive holder at least filled with a soluble substance such as a soluble flavouring and/or odorant and/or colorant, more in particular such as an instant and/or liquid creamer, the collecting container being further provided with a first space included in the liquid flow path for including the extraction pad in the liquid flow path, a second space included in the liquid flow path for including the additive holder in the liquid flow path and positioning means for positioning, during use, the extraction pad and the additive holder relative to each other such that the extraction pad and the additive holder lie clear of each other, the extraction pad being preferably located upstream of the additive holder in the liquid flow path.
In use, the hot water will first be pressed through the extraction pad thereby forming the extract. Then the extract is contacted with the soluble substance, for instance by feeding the extract through the additive holder, the soluble substance then dissolving in the extract. Hereafter, the extract with the soluble substance dissolved therein will leave the collecting container via the outflow opening. Such an assembly can preferably be utilized in the method as described hereinabove.
In particular, it holds that the positioning means comprise an extraction pad holder having a bottom on which the extraction pad rests, while in the bottom at least one through-flow opening is provided for feeding extract, via the through-flow opening, to the additive holder. Owing to the use of the extraction pad holder, it again holds that during a preparation cycle, the shape of the extraction pad and the optional not form-retaining additive holder will not be influenced through contact between the extraction pad and the additive holder. As a result, the degree of filling of the additive holder will also have no influence on the shape and the position of the extraction pad and vice versa.
In particular, it holds that in the bottom, a plurality of through-flow openings are provided.
Further, it holds in particular that the assembly is further provided with a separating body provided with at least one passage, the separating body being included between the extraction pad and the additive holder, while during use, the extract is fed from the extraction pad, via the at least one passage, to the additive holder. Through the use of the separating body, the extract can be fed to the additive holder in a predetermined manner. If so desired, this manner can be optimized in order that the flavouring and/or the odorant and/or the colorant dissolve as much as possible in the additive holder during a preparation cycle.
In particular, it holds that the separating body is provided with a separating plate comprising a plurality of passages so that, in use, the extract is fed via the passages to the additive holder at various positions of the additive holder.
The collecting container according to the invention for use in an apparatus such as a coffee machine for the preparation of a beverage suitable for consumption such as cappuccino, is characterized in that the collecting container is designed for including at least one extraction pad at least filled with a product to be extracted such as ground coffee, and at least one additive holder at least filled with a soluble substance such as a soluble flavouring and/or odorant and/or colorant, more in particular such as an instant and/or liquid creamer, the collecting container being provided with at least one inflow opening, at least one outflow opening and a liquid flow path extending from the inflow opening to the outflow opening, the collecting container being further provided with a first space included in the liquid flow path for including the extraction pad in the liquid flow path, a second space included in the liquid flow path for including the additive holder in the liquid flow path and positioning means for positioning, during use, the extraction pad and the additive holder relative to each other such that the extraction pad and the additive holder lie clear of each other, while the extraction pad is located in the liquid flow path downstream of the additive holder.
The apparatus for the preparation of a beverage suitable for consumption such as cappuccino, is provided with a collecting container, as described hereinabove, and means for feeding hot water under pressure to the inflow opening of the collecting container.
The method as described hereinabove can be carried out with the aid of an apparatus as described in Dutch patent application 1013270, while the container of this apparatus is replaced by the collecting container according to the present invention. The method can also be carried out with the aid of an apparatus as described in European patent application 904717 or 878158, while the holder filled with the pouch with ground coffee is replaced by the assembly or the collecting container of the present invention.
The invention will presently be further elucidated with reference to the drawing. In the drawing:
a shows a side view of a possible embodiment of an apparatus according to the invention for the preparation of cappuccino;
b shows a perspective view of a container receiving unit of the apparatus of
c shows a top plan view of the container receiving unit according to
d shows a cross section of the container receiving unit according to the line 1d of
e shows a cross section of the container receiving unit according to the line 1e of
a shows a collecting container which, in use, is placed in the chamber of the container receiving unit according to
b shows a cross section of the holder according to line 2b of
c shows a detail of an encircled part of
d shows a cross section according to
a is the element of the collecting container according to
b is a cross section according to
In
The apparatus is further provided with a removable lid 8 with which the collecting container can be closed off when it has been placed in the receiving space 6. The apparatus further comprises a hot water unit 10 designed for feeding hot water via a hose 12 to the collecting container 4 which is closed of by the lid 8.
The container receiving unit 2 is further provided with a buffer reservoir 14 having, in top plan view, a substantially convex bottom 16 and upright side walls 18. Near to the centre of the bottom however, the bottom has a substantially flat shape. The flat part of the bottom is indicated in
The collecting container 4 is provided with a bottom 24 and an upright sidewall 26. The bottom 24 is provided with an outflow opening 27 in which a nozzle 28 is included. The nozzle 28 is manufactured from a rigid material. A hard plastic or a metal can be considered here. Herein, nozzle is understood to mean any element or means with which a jet can be generated. At its upper side, the collecting container 4 is provided with an inflow opening 30.
On the bottom 24, an additive holder 32 rests, filled with a soluble substance known per se such as a soluble flavouring and/or odorant and/or colorant, in this example an instant and/or liquid creamer. In this example, the additive holder 32 comprises a creamer package 34 filled with the creamer 35. This may be a dairy creamer or a non-dairy creamer. In this example, the creamer package 34 is manufactured from filtering paper. The additive holder is therefore designed as an additive pad. Hereinafter, the additive pad will also be indicated as creamer pad. In this example, the creamer package 34 comprises an upper sheet 36A and an lower sheet 36B each manufactured from filtering paper and sealed together along their circumferential edges 38. The thus sealed together parts form a circumferential sealing joint 40. In this example, the lower side of the creamer package 34, i.e. the lower sheet 36B, is dish-shaped while the upper side, i.e. the upper sheet 36A, is of flat design.
The collecting container 4 is further provided with positioning means 42, positioning the extraction pad 44 filled with a product to be extracted and the creamer pad 32 relative to each other such that the extraction pad 44 is located at a distance from the creamer pad 32. Therefore, the extraction pad and the creamer pad lie clear of each other. Inside the collecting container 4, a liquid flow path extends from the inflow opening 30 to the outflow opening 27. The extraction pad 44 and the creamer pad 32 are included in this liquid flow path. In this example, the extraction pad is located upstream relative to the creamer pad in the liquid flow path, in a first space 45 of the collecting container. In this example, the creamer pad 32 is located downstream of the extraction pad in this liquid flow path in a second space 51 of the collecting container (see
In this example, the positioning means 42 comprise the bottom 24 on which the additive holder or creamer pad rests.
The positioning means 42 are further provided with a plate-shaped element 50 located at a distance from the bottom 24. The element 50 extends at least virtually parallel to the bottom 24. In the element, a plurality of through-flow openings 52 are provided. The positioning means 42 are further provided with a supporting surface 54 extending around the element 50 and an upright sidewall 55. An outer edge 56 of the supporting surface 54 reaches as far as the upright sidewall 55 and an inner edge 58 of the supporting surface 54 reaches as far as an outer edge 60 of the element 50. The supporting surface 54 comprises a ring-shaped outer part 62 which, together with the upright sidewall 55, adjoins the upright sidewall 26, and an inner part 64 reaching downwardly away from the upright sidewall 26, which part adjoins the element 50. Together with the inner part 64, the element 50 forms a cup-shaped space wherein the described convex lower side of the coffee pad fits. The circumferential sealing joint of the coffee pad lies flat on the outer part 62. The element 50, the outer part 62 and the inner part 64, and the upright sidewall 55 together form an extraction pad holder, indicated hereinafter as coffee pad holder 66 for receiving the coffee pad 44, the bottom of the coffee pad holder 66 being formed by the outer part 62, the inner part 64 and the element 50. In this bottom, by means of the element 50, a plurality of through-flow openings 52 is provided.
In this example, by means of the coffee pad holder 66, the positioning means 42 support the coffee pad such that the coffee pad is located at a distance from the creamer pad 32, the creamer pad being included between the bottom 24 and the coffee pad 44. Hence, the coffee pad 44 and the creamer pad 32 are positioned relative to each other such that they lie clear of each other. In this example, the element 50 is composed from a first number of parallel, spaced apart, separate metal wires 68 and a second number of parallel, spaced apart, separate metal wires 70 which are in one plane. The wires 68 are directed perpendicularly to the wires 70, the first number of wires 68 being connected to the second number of wires 70 by means of, for instance, soldering. All this entails that the through-flow openings 52 are enclosed by, each time, two of the wires 68 and two of the wires 70. Further, on a side proximal to the coffee pad, the element is provided with grooves 72. The grooves are formed by intermediate spaces between neighbouring wires 68. In particular, completely analogously, the element is provided with grooves on the side facing away from the coffee pad (not shown). These grooves are formed by intermediate spaces between the wires 70. In this example, the coffee pad holder 66 lies in a detachable manner on the rest of the collecting container 4. The coffee pad holder 66 rests on projections 73 of the upright sidewall 26.
The operation of the apparatus described to this point is as follows. The coffee pad holder 66 is removed (lifted from the upright sidewall 26 and the projections 73) from the rest of the collecting container 4. Hereafter, the creamer pad 32 is placed in the second space 51 on the bottom 24 of the container 4. Then, the coffee pad holder 66 is placed back in the first space 49. The coffee pad 44 is placed on top of the coffee pad holder 66. Thus, the collecting container 4, coffee pad 44 and creamer pad 32 form the assembly, a cross section of which is shown in
In particular, a space 76 below the buffer reservoir is divided into two equal parts 76A and 76B by means of an upright partition 76. The space 76A is then in fluid communication with the overflow 21A, the opening 22A and the outlet 20A, and the space 76B is in fluid communication with the overflow 21B, the opening 22B and the outlet 20B. The coffee extract flowing via the overflow 21A or the opening 22A to the space 76A will leave the container receiving unit via the outlet 20A. The coffee extract flowing via the overflow 21B or the opening 22B to the space 76B will leave the container receiving unit via the outlet 20B. Per outlet 20A and 20B at least virtually the same amount of cappuccino is dispensed.
Hence, it holds that the coffee pad 44 and the creamer pad 32 are included in the collecting container 4 together, while the creamer pad 32 is placed downstream of the coffee pad 44, while the coffee pad 44 is supported by positioning means 42 so that the coffee pad 44 and the creamer pad lie clear of each other. As coffee pad 44 and the creamer pad, not form retaining in this example, lie clear from each other, it appears that each time a cappuccino can be formed having the same quality. The fact is that also when the creamer dissolves so that the size of the creamer pad decreases and its shape changes, this has no influence on the positioning and, hence, the extraction of the coffee pad. Conversely, the coffee pad itself has no predictable influence on the manner in which the creamer pad is flowed through and hence, the dissolution of the creamer. Thus, each time, a cappuccino of the same quality will be obtained.
To ensure that the coffee extract which is pressed through the coffee pad can easily finds its way to the creamer holder, the element 50 is provided with earlier mentioned grooves 72. The grooves 72 which are located on the upper side of the element 50 furthermore ensure that the lower side of the coffee pad 44, at least the part thereof which extends over the element 50, remains open and can be flowed through easily by the coffee extract formed.
According to a special embodiment of the collecting container 4, the collecting container 4 is further provided with a separating body 80 (see
The invention is not limited in any manner to the embodiments outlined hereinabove. For instance, the additive holder can also be provided with a form retaining cup filled with a soluble substance, such as a soluble flavouring and/or odorant and/or colorant, as the above-mentioned creamer. This cup can have a shape as described hereinabove with reference to the creamer pad and can be manufactured, at least partly, from a material which bursts open when hot water is supplied so that tears are formed, or which dissolves. The cup can be manufactured, for instance, as described in Dutch patent application 1006874. The additive holder or creamer pad can further consist of a (for instance rigid) holder open at the top which is designed so as to be refillable. This holder can have the shape of the lower sheet 36B.
In this example, the creamer pad lies clear of the element 50. However, it is conceivable that a very limited distance, or no distance is present between the element 50 and the upper side 36A of the creamer pad.
It is also conceivable that the extraction pad and the creamer pad are switched in the collecting container. In that case, the creamer pad rests on the extraction pad holder 66, indicated hereinabove as coffee pad holder 66, and the extraction pad 66 rests on the bottom 24 of the collecting container 4. This bottom 24 can then be designed as described in European patent 904717. In that case, the hot water is first contacted in the creamer pad with the soluble substance for obtaining water with the dissolved soluble substance therein. Then, the extract with the soluble substance dissolved therein is fed under pressure to the at least one nozzle for obtaining an extract jet; and the extract jet is aimed at an impact surface for obtaining the beverage with a froth layer suitable for consumption, such as cappuccino. Here too, the extraction pad and creamer pad are positioned relative to each other such that they lie clear of each other. In this example, the positioning as such is carried out with the positioning means described hereinabove.
Further, the buffer reservoir can be replaced by a single impact surface (as described in the European patent application 1317200) optionally roughened. When the coffee extract jet with the creamer dissolved therein impacts on the impact surface, froth is formed as well. The cappuccino can then flow away along, for instance, the impact surface when this has been disposed at an inclination, towards a cup. Naturally, this also means that the impact surface, as indicated in European patent 1317200, can be formed by a gauze through which the extract flows for obtaining froth. Also, the buffer reservoir can be replaced by apparatus described in Dutch patent application 1020833.
In this example, the extraction pad is filled with ground coffee. Other products such as tea and combinations thereof are also possible. In addition, further soluble substances such as flavourings, odorants or colorants can be added.
In this example, the additive holder is filled with a creamer. However, different flavourings, odorants or colorants such as sugar and combinations thereof are also possible. Herein, soluble substance is understood to mean a flavouring, odorant or colorant and also a soluble binder which increases the viscosity of the extract after some time, for instance after the extract has passed the nozzle.
Number | Date | Country | Kind |
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1024160 | Aug 2003 | NL | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/NL04/00590 | 8/23/2004 | WO | 10/24/2006 |