FIELD: food industry.
SUBSTANCE: invention relates to a beverage preparation system including a capsule comprising a flange rim and a sealing projection located at a distance from the side wall of the capsule and projecting outwardly from said flange rim, and a brewing device comprising a socket that can be moved relative to a receiving plate to form a closed chamber into which at least a part of the capsule can enter. Wherein the inner side of the capsule projection is inclined at an angle α to the plane of said flange rim, ranging from 80 to 40°, in order to allow the projection to contact the outer part of the clamping edge of said socket on the lateral projection side or both on the lateral side and on the top of the projection.
EFFECT: achieving the possibility to use clamping parts of the sockets of various shapes, ensuring perfect tightness of the flange rim seal during extraction.
40 cl, 16 dwg
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