Capsule with biasing sealing member

The capsule (1) for accommodating drink material, In order to make water flow in in a capsule (1) under pressurization and to carry out an interaction to material (3) within a capsule (1), are constituted so that it may be inserted into drink manufacture equipment (2), and A base body (4), It has the foil component (5) which closes a base body (4) by being attached to the flange-like rim (6) prolonged from the side wall (7) of the base body (4) of a capsule (1). Therefore, the capsule (1) is equipped with the seal member (8) which can bend in elasticity, and when a capsule (1) is located in drink manufacture equipment (2), a seal member (8) is 付勢 (ed) to the sealing surface (15) of drink manufacture equipment (2), and touches. When pressurized, self-reinforcement of the seal engaging of clutch of the seal member (8) of a capsule (1) and a sealing surface (15) is carried out. [Selection figure] Fig. 2