METHOD FOR DELIVERING A LONG COFFEE EXTRACT FROM A CAPSULE IN A REDUCED FLOW TIME
5 Assignments
0 Petitions
Accused Products
Abstract
A method for delivering a long coffee extract from a capsule containing ground coffee within a flow time of 50 seconds or less by injection of water under pressure within the capsule. The capsule is filled with ground coffee and has a delivery membrane. The capsule is extracted in a coffee extraction device, and pressurized water is injected in the capsule under pressure. The coffee beverage is released through the beverage delivery membrane of the capsule with engaging means engaging in and/or against the membrane. The pressure loss is reduced in the coffee bed by providing in the capsule coffee ground having a controlled percentage of fines (F) depending on the average particle size (D4,3). The flow time can be lowered to 40 seconds or even less while maintaining a coffee extraction yield within a high range of 15 to 30%.
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Citations
36 Claims
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1-18. -18. (canceled)
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19. A method for delivering a coffee extract from a capsule containing ground coffee within a flow time of 50 seconds or less by injection of water under pressure within the capsule, which comprises:
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providing a ground coffee containing capsule for extraction in a coffee extraction device where water is injected into the capsule under pressure to deliver the coffee extract, the capsule having a delivery membrane and filled with a bed of ground coffee;
wherein the coffee beverage is released through the delivery membrane of the capsule with engaging means engaging in or against the membrane; andreducing pressure loss in the capsule during the delivering by providing in the capsule ground coffee having a controlled percentage of fines (F) depending on the average particle size (D4,3) within the following limits; F is lower than or equal to 14% when D4,3 is measured from 350 to 400 microns, F is lower than or equal to 16% when D4,3 is measured from 300 to 349 microns, and F is lower than or equal to 18% when D4,3 is measured from 250 to 299 microns. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification