METHOD FOR PREPARING A DRINK AND CAPSULE FOR APPLICATION OF THIS METHOD

摘要

A method for preparing a drink by passing hot water in a capsule (1), in which first at least one cut (10) extending in a linear fashion is made through the second wall (3) of the capsule (1), substantially without removing material from it. The adjacent portions (11) of the second wall (3) delimiting the cut (10) are then allowed to draw near one another again if necessary, then, by injecting hot water into the capsule, the internal pressure in the capsule is increased to cause at least partial expulsion of the air contained in it substantially without dispensing the liquid, and, then, by deformation of the second wall (3), the adjacent portions (11) delimiting the cut (10) are moved away from one another, allowing the drink to flow out. The invention also relates to an apparatus and a capsule for implementing this method.

主权项

1. A method for preparing a drink by passing hot water in a capsule (1) which has a first wall (2) and a second wall (3) and which contains a substance (5) to be extracted, the method comprising the operating steps of:
creating a first opening through the first wall (2) of the capsule (1); creating a second opening (7) through the second wall (3) of the capsule (1); injecting hot water into the capsule (1) through the first opening; and making the drink flow out through the second opening (7);the method being characterised in that the step of creating the second opening (7) in turn comprises the operating steps of:
making at least one cut (10) extending in a linear fashion through the second wall (3) of the capsule (1), substantially without removing material from it, said cut (10) being delimited by two adjacent portions (11) of the second wall (3); allowing the adjacent portions (11) of the second wall (3), which delimit the cut (10), to draw near one another again if necessary; and after said drawing near again and by means of said injection of hot water, increasing the internal pressure in the capsule (1) to cause, in succession:
at least partial expulsion of the air contained in the capsule without substantial dispensing of the drink; andby means of an outward deformation of the second wall (3) at least at said adjacent portions (11), a movement away from one another by the adjacent portions (11) delimiting the cut (10), allowing the drink to flow out.