Patent ID: 7531198

Claim:
An infusion method for making a coffee beverage, the method comprising the steps of feeding hot water, at relatively low pressure of about two atmospheres, into a sealed capsule ( 2 ) defined by a cup-shaped body ( 3 ) of given longitudinal depth, the cup-shaped body ( 3 ) housing a measure of ground coffee, being closed at one end by an end wall ( 6 ), and being closed in fluidtight manner, at an open end opposite said end wall ( 6 ), by a sealing wall ( 7 ) connected integrally to the cup-shaped body ( 3 ); hot water being fed into the sealed capsule ( 2 ) by inserting at least one hollow feed needle ( 24 ) into the sealed capsule ( 2 ); and extracting said beverage from the sealed capsule ( 2 ) through hollow extraction needles ( 28 ) having longitudinal inlet slits ( 31 ), said feed needle ( 24 ) being inserted into the sealed capsule ( 2 ) through said sealing wall ( 7 ); said extraction needles ( 28 ) being inserted into the sealed capsule ( 2 ) and into the ground coffee through said sealing wall ( 7 ) and prior to feeding hot water into the sealed capsule ( 2 ); and each said longitudinal slit ( 31 ), when extracting said beverage, extending inside the sealed capsule ( 2 ) by a length at least equal to a third of said longitudinal depth.