AU2011265343A1 - Method and filtration device for in-vessel brewing - Google Patents
Method and filtration device for in-vessel brewing Download PDFInfo
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- AU2011265343A1 AU2011265343A1 AU2011265343A AU2011265343A AU2011265343A1 AU 2011265343 A1 AU2011265343 A1 AU 2011265343A1 AU 2011265343 A AU2011265343 A AU 2011265343A AU 2011265343 A AU2011265343 A AU 2011265343A AU 2011265343 A1 AU2011265343 A1 AU 2011265343A1
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- Prior art keywords
- filtration device
- vessel
- filter
- base
- particulate material
- Prior art date
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Links
- 238000001914 filtration Methods 0.000 title claims abstract description 143
- 238000000034 method Methods 0.000 title claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 73
- 239000011236 particulate material Substances 0.000 claims abstract description 56
- 235000013361 beverage Nutrition 0.000 claims abstract description 38
- 238000009835 boiling Methods 0.000 claims abstract description 22
- 235000013353 coffee beverage Nutrition 0.000 claims description 64
- 235000016213 coffee Nutrition 0.000 claims description 62
- 239000002184 metal Substances 0.000 claims description 33
- 241001122767 Theaceae Species 0.000 claims description 30
- 239000011148 porous material Substances 0.000 claims description 21
- 239000004677 Nylon Substances 0.000 claims description 9
- 239000011888 foil Substances 0.000 claims description 9
- 229920001778 nylon Polymers 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 240000007154 Coffea arabica Species 0.000 description 60
- 235000013616 tea Nutrition 0.000 description 33
- 239000002245 particle Substances 0.000 description 25
- 235000008504 concentrate Nutrition 0.000 description 9
- 239000012141 concentrate Substances 0.000 description 7
- 230000000284 resting effect Effects 0.000 description 7
- 238000000605 extraction Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 239000007787 solid Substances 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000008267 milk Substances 0.000 description 3
- 210000004080 milk Anatomy 0.000 description 3
- 235000013336 milk Nutrition 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 235000005979 Citrus limon Nutrition 0.000 description 2
- 244000131522 Citrus pyriformis Species 0.000 description 2
- 235000020341 brewed tea Nutrition 0.000 description 2
- 238000013124 brewing process Methods 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 235000015114 espresso Nutrition 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 241000723418 Carya Species 0.000 description 1
- 240000005546 Piper methysticum Species 0.000 description 1
- 235000016787 Piper methysticum Nutrition 0.000 description 1
- 240000001949 Taraxacum officinale Species 0.000 description 1
- 235000005187 Taraxacum officinale ssp. officinale Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 235000003599 food sweetener Nutrition 0.000 description 1
- 235000015092 herbal tea Nutrition 0.000 description 1
- 235000008216 herbs Nutrition 0.000 description 1
- 235000012171 hot beverage Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 235000013599 spices Nutrition 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/06—Filters or strainers for coffee or tea makers ; Holders therefor
- A47J31/0636—Filters or strainers for coffee or tea makers ; Holders therefor suspended from the top of the beverage container so as to remain in contact with the prepared infusion
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
A method and filtration device for in-vessel beverage brewing. Placing a filtration device inside the vessel, the filtration device being configured such that the base of the filtration device rests substantially on a base of the vessel, adding the particulate material within and at the base of the filtration device; pouring hot or boiling water into the filtration device over the particulate material so that the particulate material is displaced upwardly in the water as the water fills the filtration device, allowing the particulate material to steep in the water within the filtration device and then removing the filtration device with the particulate material therein from the vessel.
Description
Editorial Note 2011265343 The description starts on page 2.
-2 METHOD AND FILTRATION DEVICE FOR IN-VESSEL BEVERAGE BREWING Technical Field A method and filtration device for in-vessel beverage brewing are disclosed. The 5 method and filtration device will be described with particular reference to the preparation of a single cup of coffee using espresso coffee grounds, however, it should be appreciated that the method and filtration device are not limited to this application but may also be used for the preparation of other beverages (e.g. various types of tea). 10 Background Art The filtration of tea and coffee particles for the preparation of beverages by various methods is known. For example, the use of tea- and coffee- bags to produce a steeped tea or coffee beverage is known. Other methods, such as the use of a French press or 'plunger', as well as the use of a tea strainer to separate tea particles from water in a teapot are also 15 known. There are a number of factors which affect the quality of a brewed beverage such as tea or coffee. These include time, temperature and the amount of extraction. To decrease the time taken to brew a beverage, particle size must be reduced (thereby increasing the surface area of the particles being exposed to e.g. water). However, there are limitations as to 20 the size of filter holes where a tea or coffee pot, for example, is used with gravitational flow on the particles. If the holes of the filter are too small, the filter will become blocked. One form of filtration and extraction includes having a filtration device located over a cup, so that filtered liquid passes through the filtration device into the cup. While there is no limitation on the particle size, there is only minimal contact time between the liquid and the 25 tea or coffee particles and thus there is limited extraction. In an alternative form of filtration and extraction, a filter containing tea or coffee particles may be suspended in a cup, and hot or boiling water may be poured onto the particles in the filter. The water again has only minimal contact time with the particles as the water is poured thereon. Where the level of water increases to above the position of the filter 30 in the cup, some steeping of the particles may occur. However, as water is initially poured 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -3 onto the particles, and flows through the filter, the particles compress and become compacted thus preventing full extraction and brewing of the particles. As mentioned above, the use of tea or coffee bags (or another device that encapsulates the tea or coffee particles) is also known. However, permeation of water into 5 and out of the bag or filter is limited and there are also significant limitations on the size of particles that are usable in such bags or device. As mentioned above, a French press, otherwise known as 'plunger'-type devices, is known. However, the particle size is again limited to coarse or medium grinds, as fine grinds block the filter due to back pressure of the particles. As the plunger is depressed, the filter 10 blocks creating a pressure that prevents the plunger from being depressed to filter the extracted beverage from the particles. JP 2005-199007 discloses a coffee brewer that creates a vacuum, and thus a pressure differential, between the filter and the cup. The vacuum is created as the filter is inserted into the cup, such that the solid filter sides are slid on the cup interior. The base of the filter, a 15 non-woven fabric to allow water to drain therethrough, is positioned a distance above the base of the cup to prevent the vacuum created from becoming such that the filter cannot be removed from the cup. As the filter is removed from the cup, the vacuum (or pressure difference) draws the water through the coffee into the cup. The above references to the background art do not constitute an admission that the 20 art forms a part of the common general knowledge of a person of ordinary skill in the art. The above references are also not intended to limit the application of the method and filtration device as disclosed herein. Summary of the Disclosure 25 According to a first aspect, there is disclosed an in-vessel method of brewing a beverage from a particulate material, the method comprising the steps of: - selecting and placing a filtration device inside the vessel, the filtration device being configured such that a base of the filtration device rests substantially on a base of the vessel; - locating a portion of the particulate material within and at the base of the filtration 30 device; 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -4 - pouring hot or boiling water into the filtration device over the portion of the particulate material so that the particulate material is caused to be displaced upwardly in the water as the water fills the filtration device; - allowing the particulate material to steep in the water within the filtration device 5 located in the vessel to form an aqueous beverage solution within the filtration device; and - removing the filtration device with the particulate material therein from the vessel such that the aqueous beverage solution remains in the vessel. When the hot or boiling water is poured onto the particulate material, there is an upward flow and swirling of the particulate material created by the turbulence induced in the 10 water as a result of the filter resting on the vessel base. This turbulence enhances the dispersion of the particulate material throughout the water and filtration device and enhances the infusion and brewing process. The turbulence resulting from the base of the filtration device resting substantially on the base of the vessel arises from the water being unable to pass through the base of the filtration device. The turbulence also prevents compaction of the 15 particulate material in the base of the filtration device. Additionally, the minimal water that does filter through the base is reflected from the base of the vessel thus providing an upward pressure on the particulate material and dispersing the material throughout the volume of the filtration device. This is contrary to known devices, including the filter device disclosed in JP 2005 20 199007, wherein there is a gap between the base of the vessel and the base of the filtration device. This gap allows water to pass therethrough and into a vessel, thus compacting the particles and preventing adequate dispersion of the particulate material in the filter once additional water has been added. Additionally, as there is a gap between the base of the vessel and the filter of known devices, where only a small amount of liquid is introduced 25 thereto, no steeping occurs as the liquid has passed through the filter into the base of the vessel. In some known devices pressure may be created through the use of a downward plunger, or through the creation of a vacuum to draw water through the device, whereas in the presently disclosed method the brewed beverage flows through the device by gravitational forces only. 30 Having the base of the filtration device rest substantially on the base of the vessel, as disclosed in the present application, allows a beverage concentrate to be prepared, as the particulate material steeps in the reduced volume of liquid thus provided a stronger brew. 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -5 The beverage concentrate may be subsequently diluted to make iced drinks or with, for example, heated and frothed milk to make hot drinks. In one embodiment, the filtration device may have a volumetric profile that generally corresponds to an interior profile of the vessel. As the profile of the filter substantially 5 corresponds to the interior profile of the vessel, minimal water escapes from the filtration device, thus maximising the amount of water in contact with the particulate material. This also provides the maximum volume for the particulate material to steep and circulate through the water. In one embodiment, the filtration device is selected to have pores extending 10 therethrough, the pores being located throughout a substantial part of the device. The pores may, for example, be located throughout the entire device, or may be limited to the sides of the filtration device, with the base of the filtration device being solid. Alternatively, the base and side walls of the filtration device may have different pore sizes. The pores may be approximately 60 to 80 microns in diameter. 15 In one embodiment, a filtration device may be selected that is made from a flexible material. This may assist with the filtration device substantially conforming to the volumetric profile of the interior of the vessel. In one embodiment, the filtration device may be made from a porous paper, nylon mesh, metal woven mesh or a metal foil. The mesh size of such devices may be from 60 to 80 20 microns. The pore and mesh size used in the filtration device may depend on the size of the particulate material to be used therein. A porous paper filtration device may be disposable to prevent flavour migration between uses, whereas a nylon mesh or metal foil filtration device may be easily cleaned and re-used. For example, the metal foil may be back-flushed with hot water to remove any residual particulate material and thus also minimising flavour migration 25 between uses. In one embodiment, the filtration device may further include a device for urging the filtration device into the vessel to ensure the base of the filtration device rests substantially on the vessel base. This may be suitable for use with a flexible filtration device, such a porous paper filter. For example, a cylindrical, or other appropriately shaped, device that is shaped to 30 approximately correspond to the internal volumetric profile of the vessel may be used. 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -6 In one embodiment, the particulate material may be ground coffee, or may be tea leaves, fannings, or dusts (i.e. particulate material of any size may be used). The ground coffee may be a super fine, fine, medium or coarse grind. The versatility of the method to use a particulate material of various sizes, and in some instances material that may otherwise be 5 inappropriate for use, is a distinct benefit over prior art methods. The ability to use super fine grind coffee provides a high-quality single cup of coffee suitable for espresso-type coffee production. Normally, the use of an espresso-type coffee grind, where the coffee is ground to have a particle size of approximately 150 microns, has been limited to use in espresso coffee machines. The method presently disclosed allows this super-fine grind to brew a flavoursome 10 cup of coffee. The present method is also versatile enough to utilise plunger-type ground coffee, where the particle size is approximately 1,500 microns. In one embodiment the vessel is a cup, mug, glass, beaker or a pot. Brewing the beverage directly into a cup, for example, limits temperature reduction of the beverage when compared with brewing the beverage into a first container, such as a coffee pot, and then 15 transferring the beverage into a cup. It is noted that the vessel is not limited to a vessel having substantially vertical sides. For example, the vessel may also include a take-away cup, commonly used for take-away coffees, that has sloping sides. In one embodiment, the filtration device is removed once the aqueous beverage solution obtains a certain colour and/or concentration and/or after a prescribed time. This 20 allows for a user to determine the strength of the beverage being brewed to their own liking. In one embodiment, the filtration device may comprise a two-layer filtration system. For example, a plastic or metal filter frame may be lined with porous filter paper that is then placed in the vessel for filtration of the particulate material. Alternatively, porous filter paper may be placed into the vessel and a metal filter, for example a course mesh metal filter or a 25 foil filter, may be inserted into the porous filter paper. The particulate material may then be placed into the metal filter and hot or boiling water poured thereover. In an alternative embodiment, the filtration device, having a portion of particulate material located at a base thereof, may be placed inside a vessel containing hot or boiling water. As the filtration device is lowered into the vessel of hot or boiling water, turbulence is 30 created, causing the particulate material to swirl and steep in the water. The base of the filtration device rests on the base of the vessel while the particulate material steeps in the hot 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -7 or boiling water. The filtration device is then removed to leave an aqueous beverage solution in the vessel. According to a second aspect, there is provided a filtration device suitable for use with the in-vessel method of any one of the preceding claims, the filtration device being configured 5 such that a base of the device is able to rest substantially on a base of the vessel when the device is placed in the vessel. The filtration device described in the second aspect may otherwise be as defined in the method of the first aspect. In one embodiment, the filtration device further comprises one or more pronged 10 filtration device openers to bias the device open. This allows the particulate material to be easily located into the filtration device and minimise spillage and wastage of the particulate material. In one embodiment, the filtration device further comprises a hook or support for hooking onto the vessel rim. Where a porous paper filtration device is being used, for 15 example, this may prevent the filtration device from collapsing or falling into the vessel while the hot or boiling water is being poured into the device, or while the particulate material is steeping in the hot or boiling water. In one embodiment, the filtration device further comprises an externally and peripherally extending lip, the lip being located at an open upper end of the filtration device so 20 as to rest on an upper rim of the vessel and to thereby enable the base of the filtration device to be located at the base of the vessel. Again, this may prevent the filtration device from collapsing or falling into the vessel while the hot or boiling water is being poured into the device, or while the particulate material is steeping in the hot or boiling water. In one embodiment, the filtration device further comprises a projection for gripping to 25 remove the filtration device from the vessel. This facilitates the simple removal of the filtration device from the vessel and may be in the form of a rod or bar extending across the diameter of the upper end of the filtration device, or a shaft which can be pierced through the filtration device to allow the filtration device to be raised and removed from the vessel. In one embodiment, the filtration device may further include a device for urging the 30 filtration device into the vessel to ensure the base of the filtration device rests substantially on the vessel base. This may be suitable for use with a flexible filtration device, such a porous 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -8 paper filter. For example, a cylindrical, or other appropriately shaped, device that is shaped to approximately correspond to the internal volumetric profile of the vessel may be used. In one embodiment, the filtration device may comprise a two-layer filtration system. For example, a plastic or metal filter frame may be lined with porous filter paper that is then 5 placed in the vessel for filtration of the particulate material. Alternatively, porous filter paper may be placed into the vessel and a metal filter, for example a course mesh metal filter or a foil filter, may be inserted into the porous filter paper. The particulate material may then be placed into the metal filter and hot or boiling water poured thereover. According to a third aspect, there is provided a kit for brewing a beverage, in-vessel, 10 from a particulate material, the kit comprising: - the filtration device as defined in the second aspect; - at least one portion of particulate material to be brewed; and/or - a vessel for collecting the brewed beverage. The kit may therefore be available in three forms: a filtration device with at least one 15 portion of particulate material to be brewed; a filtration device with a suitable vessel for collecting the brewed beverage; or a filtration device with at least one portion of a particulate material to be brewed and a suitable vessel for collecting the brewed beverage. Such a kit can enable a consumer to conveniently make the brewed beverage when desired, at any time of the day, for example at home, at work, when entertaining etc. 20 In one embodiment, the at least one portion of particulate material may be held in at least one corresponding packet or sachet, or is provided by a measuring device of predetermined capacity. A plurality of such packets or sachets can be provided in the kit. The kit may also comprise a plurality of packets or sachets holding other additives such as sweeteners, herbs, spices or the like. Alternatively, the at least one portion of particulate 25 material may be provided by a measuring device such as a scoop or spoon of predetermined capacity. In one embodiment, the vessel is a cup, mug, glass, beaker or a pot. In one embodiment, the kit may further include a device for urging the filtration device into the vessel. This may be suitable for use with a flexible filtration device, such a 30 porous paper filter. For example, a cylindrical, or other appropriately shaped, device that is 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -9 shaped to approximately correspond to the internal volumetric profile of the vessel may be used. The kit of the third aspect may be used in the method described in the first aspect. The filtration device of the kit may otherwise be as described in the first or second aspects. 5 Brief Description of the Drawings Notwithstanding any other forms which may fall within the scope of the method, filtration device and kit as defined in the Summary, specific embodiments will now be described, by way of example only, with reference to the accompanying drawings in which: 10 Figure 1 shows a cross-sectional side view of a first filtration device in the form of a metal foil filter in a vessel; Figure 2 shows a perspective view of the filtration device shown in Figure 1; Figure 3 shows a perspective view of a second filtration device in the form of a porous paper filter in a teapot; 15 Figure 4 shows a perspective view of a third filtration device in the form of an alternate metal foil filter; Figure 5 shows a pronged filtration device opener; and Figures 6a and 6b show, respectively, a plan and cross-sectional view of a fourth filtration device in the form of a paper or nylon mesh filter. 20 Detailed Description of Specific Embodiments Referring firstly to Figure 1, a vessel in the form of a mug 10 is shown with a filtration device in the form of a metal filter 12, with particulate material in the form of super fine grind coffee grounds 14 located in the base thereof. It can be seen that the base 16 of filter 12 rests 25 substantially on the vessel base 18. When hot or boiling water is poured onto the coffee grounds 14, there is an upward flow and swirling of the coffee grounds 14 created by the turbulence induced in the water as a result of the filter 12 resting on the vessel base 18. This turbulence enhances the dispersion of the coffee grounds 14 throughout the water and metal filter 12, and enhances the infusion and brewing process. The turbulence resulting from the 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -10 base 16 of the metal filter 12 resting substantially on the vessel base 18 arises from the water being unable to pass through base 16. The turbulence also prevents compaction of the coffee grounds 14 in the base of filter 12. Additionally, the minimal water that does filter through the base 16 is reflected from the vessel base 18 thus providing an upward pressure on the coffee 5 grounds 14, dispersing the grounds 14 throughout the volume of the water in the filter 12. The metal filter 12 is shown having an externally and peripherally extending lip 20 at the open upper end of the filter 12. This lip 20 rests on the upper rim 22 of the mug 10. This lip 20 may also be used to remove the filter 12 from the mug 10, once the coffee has been brewed. 10 Figure 2 shows a perspective view of metal filter 12. The filter 12 is shown having a volumetric profile that generally corresponds to an interior profile of the mug 10. As the profile of the filter 12 substantially corresponds to the interior profile of the mug 10, minimal water escapes from the filter 12, thus maximising the amount of water in contact with the coffee grounds 14. This also provides the maximum volume for the coffee grounds 14 to steep 15 and circulate through the water. The filter 12 is of the metal mesh variety, having pores extending therethrough. The filter shown has a mesh size of 60 microns. Such a filter 12 can be readily cleaned by back flushing with hot water to remove any residual coffee grounds 14. Referring now to Figure 3, a second embodiment of a filter 30 is shown, placed in a 20 teapot 32. The base 34 of filter 30 is resting on the base 36 of teapot 32. The filter 30 shown in Figure 3 is of the flexible, porous paper type. To assist with biasing the filter 30 open, a filtration device opener 50 (discussed in more detail, below, with reference to Figure 5) may be used. This provides a more structured opening in the filter, in which the particulate material, such as tea fannings, is to be placed. Biasing open filter 30 also facilitates the 25 pouring of hot or boiling water into the filter. The porous paper filter 30 is a disposable filter that can be discarded after a single use. This enables a user to prepare a single cup, mug, pot, etc of, for example, tea which has been made having a strength to the user's liking. A projection, such as a rod with a sharpened end, (not shown) may be pierced through the top of the filter 30 to assist with removing the filter 30 30 from the teapot 32. Otherwise, a user may simply grip the edges 38, or other suitable portion, of the filter 30 to remove once the tea has been brewed. It should be understood that this is merely one suitable design for a flexible porous material filter and that other 2873205_1 (GHMatters) P87566.AU.1 15/12/11 - 11 designs, such as that depicted in Figures 6a and 6b, wherein the base of the filter substantially rests on the base of the, for example, pot, would also be suitable for use in such a method. A third embodiment of a filter 40 is also shown at Figure 4. The filter 40 is a non flexible metal type filter. This filter 40 differs from the filter 12 shown in Figures 1 and 2 as the 5 base 42 is substantially solid, with fewer pores 44 therein. Pores 44 still allow some water to exit through the base 42 of the filter, however, the bulk of the water will drain from pores 46 in the side of the filter 40. Filter 40 is also shown having a projection in the form of a permanent shaft 48 which can be gripped by a user to remove the filter from a cup. Alternatively, the lip 20, which rests on the upper rim of the cup, may also be used for gripping 10 to remove the filter 12 from the cup. Figure 5 shows a filtration device opener 50 in an 'open' position. The opener 50 has four arms 52 which are moveable with respect to each other such that they can be 'collapsed' to simplify insertion into the base of a flexible filtration device, such as filter 30 shown in Figure 3. Once the 'collapsed' opener 50 has been placed in the base of filter 30 the arms can 15 be extended to the 'open' position, thus biasing filter 30 open. The opener 50 is shown having prongs 54 to aid with engagement of the filter 30. Figures 6a and 6b show, respectively, plan and cross-sectional views of an alternative filtration device 60. Typically, for tea or coffee bags, gussets have been required in the bottom of the bags to allow sufficient space for the tea or coffee to be located. This requires the use 20 of complicated production techniques. The filter 60 shown in Figures 6a and 6b eliminates the need for such gussets, with the outline of a base of a cup 62 shown on the plan view. This provides a flat base 64 when assembled. A flap 66 is also provided to hook over the edge of a cup to prevent the filter 60 from falling into the cup. The filter 60 may typically be made from porous filter paper or nylon mesh. 25 Examples Non-limiting examples of the operation and use of the method and filtration device for in-vessel beverage brewing will now be described to illustrate how the method may be applied to brewing coffee and tea. It should, however, be appreciated that the method and filtration 30 device can be used to make brewed beverages other than coffee or tea, such as so-called 2873205_1 (GHMatters) P87566.AU.1 15/12/11 - 12 'herbal teas', dandelion teas, hickory extracts, caro, bouquet garni, fruit concentrate, kava, etc. In a general sense, the method comprised the steps of: 1. Placing a filtration device inside a vessel. 5 2. Placing a portion of particulate material in the base of the filter. 3. Pouring hot or boiling water into the filtration device so that the particulate material is directly contacted with hot or boiling water. 4. Allowing the particulate material to steep in the hot or boiling water. 5. Removing the filtration device from the vessel, leaving a brewed beverage in the vessel. 10 As will be clear from the following examples, steps 1 and 2 may be performed in any order. In any such case, a fast and simple method for producing a quality brewed beverage was determined. Example 1 15 A metal filter having a solid base and sides having pores therethrough was placed in a cup. The base of the filter rested substantially on the base of the cup and the sides of the filter were of the same general volumetric profile as the cup. A portion of super fine grind coffee was placed in the bottom of the filter and hot water was poured thereon to substantially fill the filter (and thus cup). The hot water agitated the super fine coffee grounds so that the 20 grounds were displaced upwardly in the water, swirling around and becoming saturated by the water. The coffee grinds were allowed to steep in the water until a desirable concentration was attained. The metal filter, with the super fine coffee grinds therein, was removed from the cup, with the water filtering through the pores in the side walls of the filter. A brew of coffee was 25 left remaining in the cup to which milk or other flavour enhances could be added. The resulting brew was a cup of quality coffee. Once the super fine coffee grounds had been discarded, the metal filter was turned upside and rinsed under running water, causing any remaining coffee particles to be dislodged. 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -13 Example 2 In this example, a metal filter having pores in both the base and sides was used in a mug to brew a tea concentrate. Again, the base of the filter rested substantially on the base of 5 the mug, however, the sides of the mug sloped upwardly and outwardly from its base, thus there was a gap between the side walls of the mug and the filter. Tea fannings were placed into the base of the metal filter and a small amount of boiling water, to fill approximately a quarter to a third of the filter, was poured thereon and allowed to steep. Once the tea had steeped, the filter was removed from the mug, along with the tea 10 fannings therein, with the tea concentrate draining from the filter. As only a quarter to a third of the mug contained tea concentrate, the concentrate was used to make a lemon iced tea by addition lemon and iced water to it. Example 3 15 In this example, a metal mesh filter, that was somewhat flexible, was used. Fine coffee grounds were placed in the base of the metal filter, which was then placed in a takeaway coffee cup. The mesh filter substantially corresponded to the volumetric profile of the takeaway coffee cup, having corresponding sloping sides and with the base of the filter substantially resting on the base of the takeaway cup. The mesh size of the filter was 60 - 80 20 microns. Again, only a small amount of hot water, filling the filter to about a quarter to a third full, was poured onto the coffee. The coffee grounds were again allowed to steep. The filter was removed with the coffee concentrate draining from both the base and sides through the pores in the mesh filter. In this Example, hot milk was added to the brewed coffee concentrate to produce a latte-style coffee in a takeaway cup. 25 Example 4 Tea leaves were placed into a plastic filter which was subsequently placed into a teapot, so that the base of the plastic filter rested on the base of the teapot. Boiling water was then poured into the filter and the tea leaves were left to steep for a few minutes. The 2873205_1 (GHMatters) P87566.AU.1 15/12/11 - 14 plastic filter was removed from the tea pot, and the brewed tea drained therefrom. The brewed tea was then poured from the tea pot into a tea cup for consumption. Example 5 5 A nylon mesh filter was placed into the glass beaker of a French press and medium grind coffee particles were placed into the bottom of the filter. The nylon mesh filter substantially conformed to the volumetric profile of the glass beaker, with the base of the filter substantially resting on the base of the beaker. The coffee grounds were allowed to steep once hot water had been poured thereon. The nylon filter was then removed from the 10 beaker, with the brewed coffee beverage remaining the filter. Example 6 A porous filter paper was opened and a pronged opening bias placed in the bottom of the filter, to bias the filter open. Coarse grind coffee was also placed into the bottom of the 15 filter and then the filter placed into a cup so that the base of the filter paper rested substantially on the base of the cup. The top of the filter paper had flaps which extended down over the rim of the cup. Boiling water was poured into the biased-open filter paper and the coffee was allowed to steep. Once the coffee had sufficiently steeped, the flaps were used to lift the filter paper from the cup, leaving the brewed coffee in the cup. The porous filter 20 paper was then discarded. Example 7 In this example, a kit for brewing a beverage in-vessel was provided. The kit comprised a mug and a metal filter with a volumetric profile that substantially corresponded 25 to the interior profile of the mug. Tea or coffee particles for using in the filter for brewing a beverage were available as a part of the kit, or separately to the kit. In the claims which follow and in the preceding description of the method and filtration device for in-vessel beverage brewing, except where the context requires otherwise 30 due to express language or necessary implication, the word "comprise" or variations such as 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -15 "comprises" or "comprising" is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments. 2873205_1 (GHMatters) P87566.AU.1 15/12/11
Claims (25)
1. An in-vessel method of brewing a beverage from a particulate material, the method comprising the steps of: 5 - selecting and placing a filtration device inside the vessel, the filtration device being configured such that a base of the filtration device rests substantially on a base of the vessel; - locating a portion of the particulate material within and at the base of the filtration device; - pouring hot or boiling water into the filtration device over the portion of the particulate 10 material so that the particulate material is caused to be displaced upwardly in the water as the water fills the filtration device; - allowing the particulate material to steep in the water within the filtration device located in the vessel to form an aqueous beverage solution within the filtration device; and - removing the filtration device with the particulate material therein from the vessel such 15 that the aqueous beverage solution remains in the vessel.
2. A method as claimed in claim 1 wherein the filtration device is selected to have a volumetric profile that generally corresponds to an interior profile of the vessel. 20
3. A method as claimed in claim 1 or 2 wherein the filtration device is selected to have pores extending therethrough, the pores being located throughout a substantial part of the device.
4. A method as claimed in claim 3 wherein the pores are approximately 60 to 80 microns. 25
5. A method as claimed in any one of the preceding claims wherein a filtration device is selected that is made from a flexible material. 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -17
6. A method as claimed in any one of the preceding claims wherein a filtration device is selected that is made from a porous paper, nylon mesh, metal woven mesh or a metal foil.
7. A method as claimed in any one of the preceding claims wherein the particulate material is ground coffee, or is tea leaves, fannings, or dusts. 5
8. A method as claimed in claim 7 wherein the ground coffee is a super fine, fine, medium or coarse grind.
9. A method as claimed in any one of the preceding claims wherein the vessel is a cup, 10 mug, glass, beaker or a pot.
10. A method as claimed in any one of the preceding claims wherein the filtration device is removed once the aqueous beverage solution obtains a certain colour and/or concentration. 15
11. An in-vessel method of brewing a beverage from a particulate material, the method being substantially as herein described with reference to the accompanying drawings.
12. A filtration device suitable for use with the in-vessel method of any one of the preceding claims, the filtration device being configured such that a base of the device is able to 20 rest substantially on a base of the vessel when the device is placed in the vessel.
13. A filtration device as claimed in claim 12 that has a volumetric profile that generally corresponds to an interior profile of the vessel. 25
14. A filtration device as claimed in claim 12 or 13 that has pores extending therethrough, the pores being located throughout a substantial part of the device. 2873205_1 (GHMatters) P87566.AU.1 15/12/11 -18
15. A filtration device as claimed in claim 14 wherein the pores are approximately 60 to 80 microns.
16. A filtration device as claimed in any one of claims 12 to 15 that is made from a flexible 5 material.
17. A filtration device as claimed in any one of claims 12 to 16 that is made from a porous paper, nylon mesh, metal woven mesh or a metal foil. 10
18. A filtration device as claimed in any one of claims 12 to 17 further comprising one or more pronged filtration device openers to bias the device open.
19. A filtration device as claimed in any one of claims 12 to 18 further comprising a hook or support for hooking onto the vessel rim. 15
20. A filtration device as claimed in any one of claims 12 to 19 further comprising an externally and peripherally extending lip, the lip being located at an open upper end of the filtration device so as to rest on an upper rim of the vessel and to thereby enable the base of the filtration device to be located at the base of the vessel. 20
21. A filtration device as claimed in any one of claims 12 to 20 further comprising a projection for gripping to remove the filtration device from the vessel.
22. A filtration device substantially as herein described with reference to the 25 accompanying drawings.
23. A kit for brewing a beverage, in-vessel, from a particulate material, the kit comprising: - the filtration device as claimed in any one of claims 12 to 22; 2873205_1 (GHMatters) P87566.AU.1 15/12/11 - 19 - at least one portion of particulate material to be brewed; and/or - a vessel for collecting the brewed beverage.
24. A kit as claimed in claim 23 wherein the at least one portion of particulate material is 5 held in at least one corresponding packet or sachet, or is provided by a measuring device of predetermined capacity.
25. A kit as claimed in claim 23 or 24 wherein the vessel is a cup, mug, glass, beaker or a pot. 2873205_1 (GHMatters) P87566.AU.1 15/12/11
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2011265343A AU2011265343A1 (en) | 2011-08-05 | 2011-12-20 | Method and filtration device for in-vessel brewing |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2011903132 | 2011-08-05 | ||
| AU2011903132A AU2011903132A0 (en) | 2011-08-05 | Method and filtration device for in-vessel beverage brewing | |
| AU2011904141 | 2011-10-07 | ||
| AU2011904141A AU2011904141A0 (en) | 2011-10-07 | Method and filtration device for in-vessel beverage brewing | |
| AU2011265343A AU2011265343A1 (en) | 2011-08-05 | 2011-12-20 | Method and filtration device for in-vessel brewing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2011265343A1 true AU2011265343A1 (en) | 2013-02-21 |
Family
ID=47667761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2011265343A Abandoned AU2011265343A1 (en) | 2011-08-05 | 2011-12-20 | Method and filtration device for in-vessel brewing |
Country Status (2)
| Country | Link |
|---|---|
| AU (1) | AU2011265343A1 (en) |
| WO (1) | WO2013020159A1 (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE20002889U1 (en) * | 2000-02-17 | 2000-05-31 | Melitta Haushaltsprodukte GmbH & Co. KG, 32427 Minden | Filter device for the production of aroma extracts from coffee or tea |
| US20020113007A1 (en) * | 2001-02-20 | 2002-08-22 | Chiodo Daniel J. | Filter |
| JP2005199007A (en) * | 2004-01-14 | 2005-07-28 | Masanori Oda | Method and apparatus for brewing coffee liquid |
-
2011
- 2011-12-20 AU AU2011265343A patent/AU2011265343A1/en not_active Abandoned
-
2012
- 2012-06-01 WO PCT/AU2012/000624 patent/WO2013020159A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013020159A1 (en) | 2013-02-14 |
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| Date | Code | Title | Description |
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| DA3 | Amendments made section 104 |
Free format text: THE NATURE OF THE AMENDMENT IS: AMEND THE PRIORITY DETAILS TO READ 2011904141 07 OCT 2011 AU AND 2011903132 05 AUG 2011 AU |
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| NB | Applications allowed - extensions of time section 223(2) |
Free format text: THE TIME IN WHICH TO PAY THE FILING FEE HAS BEEN EXTENDED TO 05 APR 2012 . |
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| MK4 | Application lapsed section 142(2)(d) - no continuation fee paid for the application |