WO2016207846A1

WO2016207846A1 - Brew and dispenser device of a drink and brew method

Info

Publication number: WO2016207846A1
Application number: PCT/IB2016/053774
Authority: WO
Inventors: Paola MUGGIA; Barbara MAZZON; Luciano Navarini
Original assignee: Illycaffe SpA
Current assignee: Illycaffe SpA
Priority date: 2015-06-24
Filing date: 2016-06-24
Publication date: 2016-12-29
Anticipated expiration: 2017-12-24

Abstract

A brew and dispenser device of a drink (1) unusually capable of a better and more rapid cold-brewing, comprises: a container (2) provided with at least one container opening (3); a basket (4); said basket (4) comprising an upper feed opening (5) to feed a fluid (6); said basket (4) comprising an evacuation opening (7) for the selective bleeding off of the fluid (6), wherein a selective closure valve (8) is joined to said evacuation opening (7) to close the evacuation opening (7) when the basket is extracted); a dispenser (13) suitable to selectively dispense said. fluid (6), wherein said dispenser (13) is selectively fluidically connected to said basket (4) by means of a coupling (14) selectively connected to open said selective closure valve (8); wherein said extractable basket (4) suitable to be selectively extracted or inserted in said container (2) through said at least one container opening (3); said selective closure valve (8) is suitable to close the evacuation opening (7) when the basket is extracted; said device also comprises a strainer (9) suitable to be selectively extracted or inserted in said extractable basket (4) through said upper feed opening (5); said strainer (9) comprising at least one strainer wall (10) and a strainer bottom (11) having a plurality of strainer openings (12) suitable for the free passage of the fluid (6); and wherein a refrigeration device (16) is comprised suitable for influencing the temperature of the fluid (6) placed in said extractable basket (4).

Description

DESCRIPTION

"Brew and dispenser device of a drink and brew method"

[0001] Field of application

[0002] This invention relates to a brew and dispenser device of a drink.

[0003] In particular, this invention relates to a cold brew and dispenser device of coffee and a brew method.

[0004] State of the art

[0005] For some time, the possibility has been known of brewing coffee using cold water mixed with coffee powder obtained from roasted and ground coffee beans.

[0006] However, it is known that brewing coffee from ground coffee using cold water requires a long brewing time, for example even several hours.

[0007] For this reason, the method of obtaining cold coffee by cooling ground coffee brewed with hot water is currently widespread.

[0008] For example, the document EP2441359B1 shows a solution of this type.

[0009] However it is also known that the brewing of ground coffee with hot water and subsequent cooling gives a drink a particular taste that is not always acceptable to all, particularly for the acidity of the brew.

[0010] For this reason, devices have been known for some time for brewing coffee from ground coffee using cold water that passes through a percolation device and passing slowly through the ground coffee drips into a collection container.

[0011] For example, devices of this type are known from documents USD 208,032, USD 229,530, US 228,889, US 2,878,746, US20150050389.

[0012] In these known solutions the shape and arrangement of the filters and the adjustment of the adjusting the drip device strongly affect the quality of the brewed beverage.

[0013] Furthermore, this drip brewing, while at times rapid, requires the use of complex devices, similar to alembics, which are not only difficult to use but also of difficult to manage and maintain, relegating this type of brewing to a few enthusiasts.

[0014] Moreover, where ones wishes to obtain a particularly rich and, thus, aromatic, coffee brew, the drip device must be adjusted leading to very long brew times, comparable to those of the criteria of brewing by infusion.

[0015] For this reason, brewing by infusion continue to be used .

[0016] For example, such devices are known from documents KR101497242B1, US 7,793, 585B2 and WO 2009/102668.

[0017] However, even these known devices are complex to use and maintain and, although their diffusion is increasing in some markets, they are more laborious to use in the initial and final preparation. Moreover, these known solutions are complex to use, also due to the multiplicity of factors that influence brewing.

[0018] Furthermore, long brewing times using water at room temperature to expose the drink to a greater risk of contamination and microbial proliferation.

[0019] Therefore, cold drip brewing devices are known provided with refrigeration systems designed to maintain a low temperature for the brew collected in a container after dripping.

[0020] For example, documents KR101392192B1 and JP2011083446 show solutions of this type.

[0021] However, these known solutions have the drawback of proposing solutions that are complex and increasingly difficult to maintain.

[0022] Furthermore, in the case of drip brewing, one obtains a brew collected^' for a long time in a collection container where decanting is determined by the precipitation of finely ground coffee particles on the bottom, making the extract not uniform, with different densities and inconstant aromas.

[0023] Document US 2878746, already mentioned above, shows a device for brewing a drink from ground coffee by dripping where the drink tank is large and, thus, requires a mechanical mixer suitable to give the brew the most uniform characteristics possible during its storage.

[0024] However, this known solution does not propose any solution for the storage of these large quantities of brewed coffee.

[0025] Therefore, the need is strongly felt to provide a device and method for brewing a coffee drink from ground coffee that improves cold-brewing by infusion, while also improving the quality and taste of the brew and reducing preparation times for brewing by infusion.

[0026] Solution

[0027] Therefore, the purpose of this invention to provide a cold-brewing device and a related brewing method capable of meeting the above-listed needs and solving the problems of the prior art.

[0028] These and other purposes are achieved by means of a device according to claim 1, an assembly according to claim 10 and a method according to claim 15. Several advantageous embodiments are covered by the dependent claims.

[0029] Figures

[0030] Further characteristics and advantages of the device according to the invention will appear in the following description of its preferred embodiments, provided by way of non-limiting example, with reference to the accompanying figures, in which:

[0031] - Figure 1 is an axonometric view of a cold-brewing device ;

[0032] - Figure 2 represents the assembly of Figure 1, in an exploded axonometric view;

' [0033] - Figure 3 is a sectional and schematic view of a brewing device according to an embodiment;

[0034] - Figure 4 is a sectional and schematic view of a brewing device according to a further embodiment;

[0035] - Figure 5 is a sectional and schematic view of a brewing device according to a still further embodiment;

[0036] - Figure 6 schematically shows the steps of a cold- brewing method according to a possible embodiment;

[0037] - Figure 7 is an axonometric view of a cold-brewing capsule according to an embodiment;

[0038] - Figure 8 is an axonometric view of a cold-brewing capsule according to a further embodiment;

[0039] - Figure 9 represents the capsule of Figure 7, in a partially-sectional axonometric view;

[0040] - Figure 10 is an axonometric view of a capsule according to a still further embodiment;

[0041] - Figure 11 is an exploded axonometric view of the capsule of Figure 10;

[0042] - Figure 12 is a sectional and schematic view of a brewing device according to a further embodiment.

[0043] Description of several preferred embodiments

[0044] The elements, or parts of elements, in common between the embodiments described below will be indicated with the same reference numbers.

[0045] With reference to the figures, a capsule (100) comprising a casing (101) defining an inner space of the casing (102) communicating with the outside of the casing through casing walls (103).

[0046] Said casing walls (10.3) comprise at least one wall portion (104) formed by filter paper (105) suitable to allow the input into said inner space of the casing (102) of a fluid such as water (106) and the output of a brew or infusion (107) .

[0047] Said filter paper (105) comprises a wall thickness (108) having dimensions between 70 micrometres and 1900 micrometres, preferably 1700 micrometres and/or a weight of 25-40 g/m² and/or a wet MD tensile strength greater than 4 N/15 mm (measured according to the Glotfelter Method) .

[0048] According to an embodiment, filter paper (105) is required with a paper thickness of 98 micrometres with filtration criterion predominantly of surface or alternatively a filter paper (108) with paper thickness of 1700 micrometres with filtration criterion of volume that it acts in the thickness of the paper itself.

[0049] According to an embodiment, as an alternative to the paper thickness, a filter paper (108) is selected based on its weight variable between 25 and 40 g/m2 to as an index of its retentive capacity in against the powder and/or selected on the basis of the porosity, which instead indicates the filtering capacity and flow speed of the infusion, which is selected greater than 600 l/m²s and/or the wet tensile strength, so that it is greater than 4 N/15mm (Glatfelter method) , so as to prevent the paper from breaking when extracted from the infusion.

[0050] Said filter paper (105) presents a porosity greater than 600 [l/m²s, i.e. litres/ (square metre * second)].

[0051] According to an embodiment, said filter paper (105) has a porosity comprised between 600 [l/m²s, i.e., litres/ (square metre * second)] to 800 [l/m²s].

[0052] Advantageously, said capsule (100) comprises ground coffee (109) for a dry volume equal to 30% to 75% of the inner space of the casing (102) .

[0053] With further advantage, said ground coffee (109) has a particle size between 100 microns and 2500 micrometres.

[0054] According to an embodiment, said capsule (100) comprises ground coffee (109) for a dry volume variable to 45% to 75% of the inner space of the casing (102) .

[0055] According to an embodiment, said ground coffee (109) has a particle size between 700 microns and 2500 micrometres .

[0056] According to an embodiment, said casing (101) comprise's a rigid or semi-rigid structure (110) having at least one opening (111) closed by said filter paper (105) (Figures 10 and 11) .

[0057] According to an embodiment, said casing (101) comprises a rigid or semi-rigid structure (110) having at least two openings (111) closed by said filter paper (105).

[0058] According to an embodiment, said casing (101) comprises a rigid or semi-rigid structure (110) in biodegradable material.

[0059] According to an embodiment, said casing (101) comprises a bag structure (112) in filter paper (105) shaped as a pillow bag enclosing said ground coffee (109) ( Figures 7 to 9 ) .

[0060] According to an embodiment, said ground coffee (109) has a particle size between 700 micrometres and 1800 micrometres, preferably between 800 micrometres and 1400 micrometres .

[0061] According to an embodiment, said ground coffee (109) has a variable dry volume from 45% to 55% of the inner space of the casing (102); preferably, said ground coffee (109) has a dry volume equal to 50% of the inner space of the casing ( 102 ) .

[0062] Below, we will describe a cold-brewing device of a drink according to this invention.

[0063] A brew and dispenser device of a drink (1), comprises a container (2) provided with at least one container opening (3) .

[0064] Said device also comprises a removable basket (4) suitable to be selectively extracted or inserted in said container (2) through said at least one container opening (3) .

[0065] Said extractable basket (4) comprises an upper feed opening (5) to feed a fluid (6) .

[0066] Said extractable basket (4) comprising an evacuation opening (7) for the selective drawing off of the fluid (6), wherein a selective closure valve (8) is associated to said evacuation opening (7) to close the evacuation opening (7) when the basket is extracted.

[0067] Said device also comprises a strainer (9) suitable to be selectively extracted or inserted in said extractable basket (4) through said upper feed opening (5) .

[0068] Said strainer (9) comprises at least one strainer wall (10) and a strainer bottom (11) having a plurality of strainer openings (12) suitable for the free passage of the fluid (6) when the strainer is immersed in said fluid.

[0069] Said device also comprises a dispenser (13) suitable to selectively dispense said fluid (6), wherein said dispenser (13) is selectively fluidically connected to said extractable basket (4) by means of a coupling (14) selectively connected in opening of said selective closure valve (8).

[0070] Said device (1) comprises a stirrer_. (15) suitable to stir said fluid (6) situated inside said extractable basket (4) .

[0071] Said cold-brewing device also comprises a refrigeration device (16) suitable to influence the temperature of the fluid (6) placed in said extractable basket (4 ) .

[0072] According to an embodiment, said extractable basket (4) presents a cylindrical shape open above like a pot (pot-shaped) .

[0073] According to an embodiment, said strainer (9) comprises strainer walls (10) made entirely of a mesh structure (18) .

[0074] According to an embodiment, said strainer (9) comprises at the top a strainer handle (19) suitable for the insertion and extraction of the strainer (9) from said extractable basket (4) allowing the operator to avoid touching the fluid contained in the extractable basket (4) .

[0075] According to an embodiment, said selective closure valve (8) comprises a mushroom valve (20) fitted with an obturator stressed in closing and suitable to open the valve in the event of its displacement caused by a pin (21) provided in said container (2) suitable to house said extractable basket (4).

[0076] According to an embodiment, said selective closure valve (8) comprises a quick coupling (14) comprising a female element, or mushroom valve (20), connected to said extractable basket (4) and a male element, or pin (21) connected to said container (2) and in fluidic connection with said dispenser (13), wherein said mushroom valve (20) is influenced in constant closure when not stressed in opening by said pin (21) .

[0077] According to an embodiment, said refrigeration device (16) is connected to a temperature sensor or heat probe (22 ) .

[0078] According to an embodiment, said refrigeration device (16) is connected in a controlled manner to a temperature sensor or heat probe (22) .

[0079] According to an embodiment, said refrigeration device (16) is connected in a controlled and feedback manner to a temperature sensor or heat probe (22), so as to maintain the temperature set in said basket. [0080] According to an embodiment, said device (1) comprises a lid (27) closing said container opening (3).

[0081] According to an embodiment, said device (1) comprises a lid (27) closing said container opening (3), forming a closed refrigerated cell at a controllable temperature.

[0082] According to an embodiment, said lid comprises lid insulating material (28) at least thermally suitable to avoid heat dispersion from said container opening (3).

[0083] According to an embodiment, said lid comprises lid insulating material (28) at · least acoustically suitable to muffle the noise of the refrigeration device (16) and of the stirrer (15).

[0084] In accordance to an embodiment, said cover comprises a stirring device. For example, in the said cover is housed an actuator which protrudes toward the inside of the device with a rotary shaft. In the proximity of the free end of the shaft is provided at least one blade, preferably two opposite blades, adapted to be placed in rotation with said shaft to agitate or mix the fluid contained in the device.

[0085] According to an embodiment, said container (2) comprises container insulating material (29) at least thermally suitable to avoid heat dispersion from the container walls (30) . [0086] According to an embodiment, said container (2) comprises container insulating material (29) at least acoustically suitable to muffle the noise of the refrigeration device (16) and of the stirrer (15) .

[0087] According to an embodiment, said stirrer is fitted to the container on elastic suspensions (31) suitable to reduce the vibrations transmitted to the container and suitable to reduce the operating noise of the stirrer.

[0088] According to an embodiment, said brew and dispenser device of a drink comprises a control device (23) at least operationally connected to said refrigeration device (16) and to said agitator (15) .

[0089] According to an embodiment, said device comprises a time control device, or timer (24).

[0090] According to an embodiment, said timer (24) is connected to said control device (23) and allows adjustment of the switching on or operating mode of said refrigeration device (16).

[0091] According to an embodiment, said timer (24) is connected to said control device (23) and makes it possible to adjust the switching on or operating mode of said stirrer (15).

[0092] According to an embodiment, said device comprises a screen or monitor (25), suitable to represent to the user and allow, directly like a touch-screen monitor or by means of a keypad (26) a setting of at least one of the following parameters:

[0093] - infusion time; and/or

[0094] - end-infusion buzzer; and/or

[0095] - infusion temperature; and/or

[0096] - ^' stirrer on; and/or

[0097] - adjustment of stirring intensity of the stirrer ( 15 ) ; and/or

[0098] - correct closing of the container opening (3) by the lid (27); and/or

[0099] - alarm of the malfunction of the refrigeration device; and/or

[00100] - control of the storage time of the infusion following brewing.

[00101] According to an embodiment, said stirrer (15) comprises a stirrer blade (32) freely rotatable and fluidically sealed with respect to said extractable basket (4) and wherein said stirrer blade (32) comprises a blade coupling (33) suitable to connect it to a motor shaft (34) of a motor (35) provided in said container (2) . According to an embodiment, said motor (35) is controlled in a controlled manner by a control device (23) .

[00102] According to an embodiment, said stirrer also comprises an electromechanical exciter or shaker (36). [00103] According to an embodiment, said shaker (36) comprises piezoelectric material connected to an actuator controlled by a control device (23) , wherein a defined mass is associated to said piezoelectric material, in order to exercise a vibration, of predefined entity, on the extractable basket (4) .

[00104] According to an embodiment, said shaker (36) is fluidically insulated or fluidically sealed, in order to be suitable to be immersed in a fluid contained in said basket .

[00105] According to an embodiment, said shaker (36) is connected to the container (2) and transmits the vibration to the basket through a basket support thereof or support base of the basket (37) .

[00106] In accordance with an embodiment, said shaker

(36) is connected to a basket bottom (38) .

[00107] According to an embodiment, said shaker (36) is connected to said actuator commanded by said control device (23) by means of a sealed electrical connection coupling (39) .

[00108] According to an embodiment, said extractable basket (4) is connected to elastic basket supports (40) that allow a vibration of the basket and its acoustic insulation avoiding at the same time separating said selective closure valve of the basket (8) . [00109] According to an embodiment, said stirrer (15) comprises a rotation device of the basket (41) .

[00110] According to an embodiment, said rotation device of the basket (41) comprises an inner toothed wheel (42) placed coaxial¹ to a rotation axis (X-X) of the extractable basket (4), and a pinion (43) selectively meshed with said inner toothed wheel (42) and supported so as to rotate said container (2) and operationally connected to a motor (35) connected to an actuator controlled by a control device (23) .

[00111] Said extractable basket (4) is supported so as to rotate on basket bearings (48) on said container (2) for a free rotation thereof around its rotation axis (X- X) .

[00112] According to an embodiment, said rotatable extractable basket comprises vanes (49), for example, formed in its side walls suitable to place the fluid contained in the basket in movement.

[00113] According to an embodiment, said stirrer also comprises an ultrasonic exciter (44) .

[00114] According to an embodiment, said ultrasonic exciter _. (44) is fluidically insulated or fluidically sealed, in order to be suitable to be immersed in a fluid contained in said basket.

[00115] According to an embodiment, said ultrasonic exciter (44) is connected to a basket bottom (38) .

[00116] According to an embodiment, said ultrasonic exciter (44) is connected to said actuator commanded by said control device (23) by means of a sealed electrical connection coupling (39) .

[00117] According to an embodiment, said extractable basket is attached to elastic basket supports (40) that allow a vibration of the basket and its acoustic insulation avoiding at the same time separating said selective closure valve of the basket (8) during the operation of the exciter (15) .

[00118] According to an embodiment, said brew and dispenser device of a drink (1), comprises a gas injector (45), for example of nitrogen, suitable to inject gas into said fluid (6) contained in said extractable basket (4) to form a frothy brew.

[00119] According to an embodiment, said brew and dispenser device- of a drink (1), comprises an outer casing, or case (46) suitable to be externally joined to said -container (2) for the covering and easy cleaning of the device, avoiding closing said container opening (3), and at least one monitor (25) and/or a keypad (26), as well as a possible air intake (47) at least for the refrigeration device (16) .

[00120] Below, we will describe an assembly of cold- brewing device and coffee capsule.

[00121] Said assembly comprises a device as defined in any one of the embodiments described above, and a capsule (100) .

[00122] Said capsule comprises a casing (101) defining an inner space of the casing (102) communicating with the outside of the casing through casing walls (103) .

[00123] Said casing walls (103) comprise at least a portion of the wall (104) formed of filter paper (105) suitable to allow the input into said inner space of the casing (102) of a fluid such as water (106) and the output of an infusion (107) .

[00124] Said filter paper (105) comprises a wall thickness (108) having dimensions of between 70 and 1900 micrometres, preferably between 1500 micrometres and 1900 micrometres, or preferably between 15Ό micrometres and 190 micrometres;

[00125] Said filter paper (105) presents a porosity greater than 600 [l/m2s, i.e. litres/ (square metre * second) ] and preferably comprised between 600 and 800 [l/m²s] .

[00126] Said capsule (100) comprises ground coffee

(109) for a dry volume variable from 30% to 75%, preferably from 45% to 75% of the inner space of the casing (45) . [00127] Said ground coffee (109) has a particle size between 700 microns and 2500 micrometres.

[00128] Said casing (101) comprises a rigid or semirigid structure (110) having at least one opening (111) closed by said filter paper (105) .

[00129] According to an embodiment, said casing . (101) comprises a rigid or semi-rigid structure (110) having at least two openings (111) closed by said filter paper (105) .

[00130] According to an embodiment, said casing (101) comprises a rigid or semi-rigid structure (110) in biodegradable material.

[00131] According to an embodiment, said casing (101) comprises a bag structure (112) in filter paper (105) shaped as a pillow bag enclosing said ground ¹ coffee (109) .

[00132] According to an embodiment, said ground coffee

(109) has a particle size between 700 micrometres and 1400 micrometres, preferably between 800 micrometres and 1200 micrometres.

[00133] According to an embodiment, said ground coffee

(109) has a variable dry volume from 45% to 55% of the inner space of the casing (102) .

[00134] According to an embodiment, said ground coffee (109) has a dry volume equal to 50% of the inner space of the casing ( 102 ) .

[00135] Below, we will describe a brewing method according to this invention.

[00136] A method for brewing a drink comprising at least the following steps:

[00137] - immersing for a predetermined time ground coffee (109) in water (6);

[00138] - keeping the water and ground coffee between

2° C and 9° C;

[00139] - simultaneously shaking the fluid (6) .

[00140] In accordance with a possible alternative method, at least one of the following steps is required:

[00141] - separating said ground coffee (106) from said water (6) by means of a cartridge (100) comprising:

[00142] - a casing (101) defining an inner space of the casing (102) communicating with the outside of the casing through casing walls (103);

[00143] - said casing walls (103) comprising at least a portion of the wall (104) formed of filter paper (105) suitable to allow the input into said inner space of the casing (102) of a fluid such as water (106) and to allow the output of an infusion (107);

[00144] - said filter paper (105) comprising a wall thickness (108). having dimensions of between 70 micrometres and 1900 micrometres, preferably 1500 micrometres and 1900 micrometres, or preferably between 150 micrometres and 190 micrometres;

[00145] - said filter paper (105) having a porosity between 600 [l/m²s, i.e., litres/ (square metre * second)] to 800 [l/m²s];

[00146] wherein said capsule (100) comprises ground coffee (109) for a dry volume comprised between 30% and 75%, preferably from 45% to 75%, of the inner space of the casing (102); and wherein

[00147] said ground coffee (109) has a particle size between 100 and 2500 micrometres, preferably between 700 micrometres and 2500 micrometres; and/or

[00148] - measuring the temperature of the fluid (6) present in the removable basket (4); and/or

[00149] - adjusting the temperature of the fluid (6) present in the removable basket (4); and/or

[00150] - providing for a single infusion chamber by means of a removable basket (4); and/or

[00151] - measuring the degree of agitation imparted to the fluid; and/or

[00152] - adjusting the degree of agitation imparted to the fluid; and/or

[00153] - measuring the infusion time; and/or

[00154], - indicating or signalling the infusion time; and/or [00155] - alerting the user depending on a predetermined infusion time or state of agitation of the fluid.

[00156] In accordance with a possible alternative method, at least one of the following steps is required:

[00157] - providing a volume of water (6) in proportion to the dry ground coffee (109) of 50-100 g of coffee per litre of water; and/or preferably 70 grams of coffee per litre of water; and/or

[00158] - adjusting the temperature of the fluid (6) during brewing so that it is between 2°C and 9°C; and/or preferably 4°C.

[00159] In accordance with a possible alternative method, at least one of the following steps is required:

[00160] - agitating the fluid by means of a heat gradient, or temperature difference between one part of the fluid and a second part of the thermal fluid, or temperature gradient between a first portion of the extractable basket (4) and a second portion of the extractable basket (4), in which said gradient is between 2°C and 5°C, preferably 4°C; and/or

[00161] - stirring the fluid with a rotary blade at a speed between 10 revs/min and 100 revs/min, preferably 50 revs/min; and/or

[00162] - stirring the fluid with a vibration induced by an electro-mechanical stirrer at a frequency between 270Hz and 370Hz; and/or

[00163] - stirring the fluid with a vibration induced by an ultrasonic stirrer at a frequency of between 1.5 MHz and 2.5 MHz

[00164] - leaving the ground coffee (106) in infusion in the water (6) for an infusion time of between 4 hours and 14 hours, preferably 12 hours; and/or reducing the infusion time in proportion to the increase in the agitation action of the fluid; and/or

[00165] - injecting compressed air or nitrogen into the fluid to obtain a frothy extract.

[00166] Figure 6 schematically represents a possible brewing method according to this invention.

[00167] Step A is the selection of the desired coffee mixture .

[00168] Step B is roasting the coffee beans according to a desired process in order to obtain a greater or lesser degree of roasting.

[00169] Step C is the grinding of the roasted coffee beans according to a predefined particle size between 100 and 2500 micrometres, preferably between 700 and 2500 micrometres .

[00170] Step D is the insertion of a predefined quantity of ground coffee in a capsule, such as a filter paper bag according to any of the previously described embodiments, so as to respect a ratio of 50-100 grams of coffee per litre of water.

[00171] Step E is the immersion of the" capsule in water in the ratio of 50-100 grams of coffee per litre of water, infusion that takes place immersing in a capsule in a container for a predetermined time.

[00172] Step F is maintenance in infusion while at the same time: Step G is cooling stage to between 2 and 9 °C and step H ; is stirring the fluid during brewing; optionally step I is the measurement of the temperature and control of the infusion temperature and step L is the measurement of the time and control of the infusion time, which is variable, for example, from 4 to 14 hours.

[00173] Step M is optionally the extraction of the extractable basket from the device and ^' its storage, for ^'example in a refrigerator and allowing brewing simultaneously both" in the device and outside of it.

[00174] Alternatively, step N represents the tapping of the cold-brewing device of the desired quantity of beverage .

[00175] Thanks to the solutions described above it is possible to:

[00176] - reduce the acidity of the extracted beverage;

[00177] - reduce the bitter vegetable in particular thanks to cold-brewing simultaneously with the infusion, with respect to an extraction at room temperature;

[00178] - obtain an infusion with a ratio of 8-16 grams of coffee per litre, preferably of 13-15 g/1;

[00179] - have a device that is easy to clean and manage;

[00180] - have a device capable of a continuous supply due to easy replacement of the basket and the convenient criterion of drawing the drink;

[00181] - avoiding contamination of the infusion during the extraction of the capsule after infusion (thanks to the strainer) ;

[00182] - and basically obtaining an infusion with repeatable and reproducible characteristics.

[00183] To the embodiments described above, a technician in the field, to satisfy contingent requirements, may make numerous modifications, adaptations and replacements of members with others functionally equivalent, without . departing from the scope of the following claims.

[00184] According to a further embodiment, said brew device includes a fluid stirrer (15) . Said stirrer (15) comprises a recirculation device of the fluid (200).

[00185] According to a further embodiment, said recirculation device of the fluid (200) .comprises a suction valve (201) and a delivery or recirculation valve (204) positioned in a wall of the extractable basket (4), for example a bottom wall of the extractable basket (4) .

[00186] Said dispenser device (1) includes a quick coupling (202) suitable to be associated in selective fluidic communication with said suction valve (201) for the suction of fluid from the basket towards a recirculation duct (203) when said extractable basket (4) is inserted in said brew and dispenser device (1) .

[00187] Said recirculation duct (203) is fluidically connected to a recirculating pump (204) operatively controlled by a control device (23), for example but not necessarily in a controlled manner.

[00188] Said recirculation pump (204) by means of said recirculation duct (203) is operatively connected to a quick coupling (202) suitable to be connected to said delivery or recirculation valve (205) to re-introduce the fluid placed in movement by the recirculation pump into said extractable basket creating a stream of fluid flowing through said extractable basket (4) .

[00189] According to an embodiment, a cold-brewing device (1) comprises a capsule (100) as defined in any of the embodiments described above and at least one basket (4) suitable to contain the brewing fluid, as well as an extraction or tapping device suitable to draw fluid from said basket, as described for example in document O02068316.

[00190] According to an embodiment, said capsule (100) is placed in a strainer (9) in turn placed inside the basket (4), so as to immerse or extract said capsule from the basket without having to touch the fluid in the basket.

[00191] To the embodiments described above, a technician in the field, to satisfy contingent requirements, ,may make numerous modifications, adaptations and replacements of members with others functionally equivalent, without departing from the scope of the following claims.

[00192] As can be seen from Figure 2A, 2B and 2C, a dispensing device of a drink according to a further embodiment of the invention comprises a container 2 associated to a base 55 and spaced from this by means of column elements for housing a compressor 53 below the container to which is operatively connected a condenser 52 and an evaporator placed operatively associated to the same container, realising the refrigeration device.

[00193] To the refrigeration device is also associated a motor-driven fan 54 and an actuation and control device as well as a thermostat 58 operatively connected to a temperature sensor 22. To maintain the desired temperature, around the container 2 is placed insulating material 29, for example insulating foam.

[00194] The extractable basket 4 has, on its bottom, a selective closing valve 22 that allows the connection and interruption of the fluidic connection between basket and device, in particular a dispensing duct 57 that connects with the dispenser 13 for dispensing the drink, for example placed above a drip tray 56.

LIST OF REFERENCES

1 Dispensing device of a drink

2 Container

3 Container opening

4 Extractable basket

5 Upper feed opening

6 Fluid

7 Evacuation opening

8 Selective closure' valve

9 Strainer

10 Strainer wall

11 Strainer bottom

12 Strainer openings

13 Dispenser

14 Coupling

15 Stirrer

16 Refrigeration device

17 Substance to be extracted with fluid

18 Strainer mesh structure .

19 Strainer handle

20 Selective closure mushroom valve

21 Selective closure valve pin

22 Heat probe

23 Control device

24 Timer 25 Monitor

26 Keypad

27 Lid

28 Lid insulating material

29 Container of insulating material

30 Container walls

31 Elastic stirrer suspensions

32 Stirrer blade

33 Blade coupling

34 Motor shaft

35 Motor

36 Shaker

37 Support base of the basket

38 Basket bottom

39 Sealed electrical connection coupling

40 Elastic basket supports

41 Rotation device of the basket

42 Inner toothed wheel

43 Pinion

44 Ultrasonic exciter

45 Gas injector

46 Outer casing, or case

47 Air intake

48 Basket bearings

49 Basket vanes 100 Capsule

101 Casing

102 Inner space of the casing

103 Casing walls

104 Wall portion

105 Filter paper

106 Water

107 Infusion

108 Wall thickness

109 Ground coffee

110 Rigid or semi-rigid structure

111 Opening

112 Bag structure

200 Recirculation device of the fluid

201 Suction valve

202 Quick coupling

203 Recirculation duct

204 Recirculation pump

205 delivery or recirculation valve

X-X Rotation axis of the extractable basket

Claims

1. Brew and dispenser device of a drink (1), comprising:

- a container (2) provided with at least one container opening ( 3 ) ;

- a basket (4) ;

- said basket (4) comprising an upper feed opening (5) to feed a fluid ( 6) ;

- said basket (4) comprising an evacuation opening (7) for the selective bleeding off of the fluid (6), wherein a selective closure valve (8) is joined to said evacuation opening (7) to close the evacuation opening (7) when the basket is extracted;

- a dispenser (13) suitable to selectively dispense said fluid (6), wherein said dispenser (13) is selectively fluidically connected to said extractable basket (4) by means of a coupling (14) selectively connected to open said selective closure valve (8);

characterised in -that

a removable basket (4) suitable to be selectively extracted or inserted in said container (2) through said at least one container opening (3);

- said selective closure valve (8) is suitable to close the evacuation opening (7) when the basket is extracted; - said device also comprises a strainer (9) suitable to be selectively extracted or inserted in said extractable basket (4) through said upper feed opening (5);

-said strainer (9) comprising at least one strainer wall (10) and a strainer bottom (11) having a plurality of strainer openings (12) suitable for the free passage of the fluid (6) ;

and wherein

- a refrigeration device (16) is comprised suitable for influencing the temperature of the fluid (6) placed in said extractable basket (4).

2. Brew and dispenser device of a drink (1), according to the previous claim, wherein:

-said brew and dispenser device (1) comprises a^' stirrer (15) suitable to stir said fluid (6) situated inside said extractable basket (4); and/or wherein

- said brew and dispenser device (1) comprises a stirrer (15) projecting from the lid suitable to stir said fluid (6) situated inside said extractable basket (4); and/or wherein

-said extractable basket (4) presents a cylindrical shape open above like a pot (pot-shaped) ; and/or wherein

-said strainer (9) comprises strainer walls (10) made entirely of a mesh structure (18); and/or wherein

-said strainer (9) comprises at the top a strainer handle (19) suitable for the insertion and extraction of the strainer (9) from said extractable basket (4) allowing the operator to avoid touching the fluid contained in the removable basket (4) .

3. Brew and dispenser device of a drink (1), according to any of the previous claims, wherein:

- said selective closure valve (8) comprises a mushroom valve (20) fitted with an obturator stressed in closing and suitable to open the valve in the event of its displacement caused by a pin (21) provided in said container (2) suitable to house said extractable basket (4); and/or wherein

said selective closure valve (8) comprises a quick coupling (14) comprising a female element_/ or mushroom valve (20), connected to said extractable basket (4) and a male element, or pin (21) connected to said container (2) and in fluidic connection with said dispenser (13), wherein said mushroom valve (20) is constantly influenced to close when unsolicited to open by said pin (21) .

4. Brew and dispenser device of a drink (1), according to any of the previous claims, wherein:

said refrigeration system '(16) is connected to a temperature sensor or heat probe (22); and/or wherein

said refrigeration system (16) is connected in a controlled manner to a temperature sensor or heat probe (22); and/or wherein

said refrigeration system (16) is connected in a controlled and feedback manner to a temperature sensor or heat probe (22 ) .

5. Brew and dispenser device of a drink (1), according to any of the previous claims, wherein:

said device (1) comprises a lid (27) closing said container opening (3); and/or wherein

said device (1) comprises a lid (27) closing said container opening (3), forming a closed refrigerated cell at a controllable temperature; and/or wherein

- said lid comprises lid insulating material (28) at least thermally suitable to avoid heat dispersion from said container opening (3); and/or wherein

- said lid comprises lid insulating material (28) at least acoustically suitable to muffle the noise of the refrigerator device (16) and of the stirrer (15); and/or wherein

said container (2) comprises container insulating material (29) at least thermally suitable to avoid heat dispersion from the container walls (30) ; and/or wherein said container (2) comprises container insulating material (29) at least acoustically suitable to muffle the noise of the refrigerator device (16) and of the stirrer (15); and/or wherein . - said stirrer is fitted to the container on elastic suspensions (31) suitable to reduce the vibrations transmitted to the container and suitable to reduce the operating noise of the stirrer.

6. Brew and dispenser device of a drink (1), according to any of the previous claims, comprising a control device (23) at least operationally connected to said refrigeration device (16) and to said agitator (15); and/or wherein

- said device comprises a timer (24); and/or wherein

- said timer (24) is connected to said control device (23) and allows adjustment of the switching on or operating mode of said refrigeration system (16); and/or wherein

- said timer (24) is connected to said control device (23) and makes it possible to adjust the switching on or operating mode of said stirrer (15); and/or wherein

said device comprises a screen . or monitor (25) , suitable to represent to the user and allow, directly like a touch-screen monitor or by means of a keypad (26) a setting of at least one of the following parameters:

- infusion time; and/or

- end-infusion buzzer; and/or

- infusion temperature; and/or

- stirrer on; and/or - adjustment of stirring intensity of the stirrer (15); and/or

- correct closing of the container opening (3) by the lid (27).

7. Brew and dispenser device of a drink (1), according to any of the previous claims, wherein:

- said stirrer (15) comprises a stirrer blade (32) freely rotatable and fluidically sealed from said extractable basket (4); and/or wherein

- said stirrer blade (32) comprises a blade coupling (33) suitable to connect it to a motor shaft (34) of a motor (35) provided in said container (2).; and/or wherein

- said engine (35) is controlled in a controlled manner by a control device (23); and/or wherein

- said stirrer comprises an electromechanical exciter, or shaker (36); and/or wherein

said shaker (36) comprises piezoelectric material connected to an actuator controlled by a control device (23), wherein a defined mass is associated to said piezoelectric material, in order to exercise a vibration on the removable basket (4); and/or wherein

said shaker (36) · is fluidically insulated or fluidically sealed, in order to be suitable to be immersed in a fluid contained in said basket; and/or wherein - said shaker (36) is connected to the container (2) and transmits the vibration to the basket through a basket, support thereof or support base of the basket (37) ; and/or wherein

- said shaker (36) is connected to a basket bottom (38); and/or wherein

said shaker . (36) is connected to said actuator commanded by said control device (23) by means of a sealed electrical connection coupling (39); and/or wherein

- said extractable basket is attached to elastic basket supports (40) which allow a vibration of the basket and its acoustic insulation avoiding at the same time separating said selective closure valve of the basket (8); and/or wherein

- said stirrer (15) comprises a rotation device of the basket (41); and/or wherein

- said rotation device of the basket (41) comprises an inner toothed wheel (42) placed coaxial to a rotation axis (X-X) of the extractable basket (4), and a pinion (43) selectively meshed with said inner toothed wheel (42) and supported so as to rotate said container (2) and operationally connected to a motor (35) connected to an actuator controlled by a control device (23) ; and/or

, wherein said extractable basket (4) is supported so as to rotate on basket bearings (48) on said container (2) for a free rotation thereof around its rotation axis (X-X) ; and/or wherein

- said stirrer comprises an ultrasonic exciter (44); and/or wherein

- said ultrasonic exciter (44) is fluidically insulated or fluidically sealed, in order to be suitable to be immersed in a fluid contained in said basket; and/or wherein

- said ultrasonic exciter (44) is connected to a basket bottom (38); and/or wherein

said ultrasonic exciter (44) is connected to said actuator commanded by said control device (23) by means of a sealed electrical connection coupling (39); and/or wherein

- said extractable basket is attached to elastic basket supports (40) which allow a vibration of the basket and its acoustic insulation avoiding at the same time separating said selective closure valve of the basket (8) during the operation of the exciter (15); and/or wherein

- said stirrer (15) comprises a recirculation device of the fluid (200); and/or wherein

- said recirculation device of the fluid (200) comprises a suction valve (201) and a delivery or recirculation valve (204) placed in a wall of the extractable basket (4), such as a back wall of extractable basket (4), and/or wherein

- said brew and dispenser device (1) includes a quick coupling (202) suitable to be associated in selective fluidic communication with said suction valve (201) for the suction of fluid from the basket towards a recirculatipn duct (203) when said extractable basket (4) is inserted in said brew and dispenser device (1); and/or wherein

- said recirculation duct (203) is fluidically connected to a recirculating pump (204) operatively controlled by a control device (23), for example but not necessarily in a controlled manner; and/or wherein

- said recirculation pump (204) by means of said recirculation duct (203) is operatively connected to a quick coupling (202) suitable to be connected to' said delivery or recirculation valve (205) to re-introduce the fluid placed in movement by the recirculation pump into said extractable basket creating a stream of fluid flowing through said extractable basket (4) .

8. Brew and dispenser device of a drink (1), according to any of the previous claims, . comprising a gas injector (45), for example of nitrogen or compressed air, suitable to inject gas into said, fluid (6) contained in said extractable basket (4) to form a frothy fluid.

9. Brew and dispenser device of a drink (1), according to any of the previous claims, comprising an outer casing, or case (46) suitable to be externally joined to said container (2) for the covering and easy cleaning of the device, avoiding closing said container opening (3), and at least one monitor (25) and/or a keypad (26), as well as a possible air intake (47) at least for the refrigeration device (16).

10. Assembly, comprising

- a device as defined in any of the claims from 1 to 9;

- a cartridge (100);

said cartridge comprising:

a casing (101) defining an inner space of the casing (102) communicating with the outside of the casing through casing walls (103)^';

said casing walls (103) comprising at least a portion of the wall (104) formed of filter paper (105) suitable to allow the input into said inner space of the casing (102) of a fluid such as water (106) and to allow the output of an infusion (107);

said filter paper (105) comprising a wall thickness (108) having dimensions of between 150 micrometres and 190 micrometres;

said filter paper (105) having a porosity greater than 600 [l/m2s i.e. litres/ (square metre * second) ] ; wherein

said capsule (100) comprises ground coffee (109) for a dry volume equal to 45% to 75% of the inner space of the casing (102); and in which

said ground coffee (109) has a particle size between 700 microns and 2500 micrometres.

11. Assembly, according to claim 10 wherein

said casing (101) comprises a rigid or semi-rigid structure (110) having at least one opening (111) closed by said filter paper (105); and/or wherein

said casing (101) comprises a rigid or semi-rigid structure (110) having at least two openings (111) closed by said filter paper (105) ; and/or . wherein

- said casing (101) comprises a rigid or semi-rigid structure (110) in biodegradable material.

12. Assembly, according to claim 10 or 11 wherein

- said casing (101) comprises a bag structure (112) in filter paper (105) shaped as a pillow bag enclosing said ground coffee (109) .

13. Assembly according to any of the claims from 10 to 12 wherein

- said ground coffee (109) has a particle size between 700 micrometres and 1400 micrometres, preferably between 800 micrometres and 1200 micrometres.

14. Assembly according to any of the claims from 10 to 13 wherein

- said ground coffee (109) has a variable dry volume from 45% to 50% of the inner space of the casing (102); and/or wherein

- said ground coffee (109) has a dry volume equal to 50% of the inner space of the casing (102) .

15. Method for brewing a beverage comprising at least the following steps:

- immersing for a predetermined time ground coffee (109) in water ( 6 ) ;

- keeping the water and ground coffee between 2° C and 9° C;

- simultaneously shaking the fluid (6) .

16. Brew method according to claim 15, providing for at least one of the following steps:

- separating said ground coffee (106) from said water (6) by means of a cartridge (100) comprising:

- a casing (101) defining an inner space of the casing (102) communicating with the outside of the casing through casing walls (103);

- said casing walls (103) comprising at least a. portion of the wall (104) formed of filter paper (105) suitable to allow the input into said inner space of the casing (102) of a fluid such as water (106) and to allow the output of an infusion (107);

- said filter paper (105) comprising a wall thickness (108) having dimensions of between 150 micrometres and 190 micrometres;

- said filter paper (105) having a porosity greater than 600 [l/m2s i.e. litres/ (square metre * second)];

wherein

said ground coffee (109) has a particle size between 700 microns and 2500 micrometres;

and/or

- measuring the temperature of the fluid (6) present in the removable basket (4); and/or

- adjusting the temperature of the fluid (6) present in the removable basket (4); and/or

- providing for a single infusion chamber by means of a removable basket (4); and/or

measuring the degree of agitation imparted to the fluid; and/or

adjusting the degree of agitation imparted to the fluid; and/or

- measuring the infusion time; and/or

- indicating or signalling the infusion time; and/or - alerting the user depending on a predetermined infusion time or state of agitation of the fluid.

17. Brew method according to claim 15 or 16 providing for at least one of the following steps:

- providing a volume of water (6) in proportion to the dry ground coffee (109) of 50-100 g of coffee per litre of water; and/or preferably 70 grams of coffee per litre of water; and/or

- adjusting the temperature of the fluid (6) during the extraction so that it is between 2°C and 9°C; and/or preferably 4°C.

18. Brew method according to claim 15, or 16, or 17 providing for at least one of the following steps:

^'- agitating the fluid by means of a heat gradient, or temperature difference between one part of the fluid and a second part of the thermal fluid, or temperature gradient between a first portion of the extractable basket (4) and a second portion of the extractable basket (4), in which said gradient is between 2°C and 5°C, preferably 4°C; and/or

stirring the fluid with a rotary blade at a speed between 10 revs/min and 100 revs/min, preferably 50 revs/min; and/or

stirring the fluid with a vibration induced by an electro-mechanical stirrer at a frequency between 270Hz and 370Hz; and/or

stirring the fluid with a vibration induced by an ultrasonic stirrer at a frequency of between 1.5 MHz and 2.5 MHz; and/or

- stirring the fluid with a recirculation- flow which extracts fluid from the basket and re-introduces it ^• creating a movement of fluid in the extractable basket; - leaving the ground coffee (106) in infusion in the water (6) for an infusion time of between 4 hours and 14 hours, preferably 12 hours; and/or reducing the infusion time in proportion to the increase in the agitation action of the fluid; and/or

-injecting nitrogen or compressed air into the fluid to obtain a frothy extract.