Portion capsule for preparing a brewed product

摘要

The invention relates to a portion capsule (1) that is filled with an extraction substance for producing a brewed product, and comprises - a main part (2) having a base region (5) and a peripheral lateral wall (6); and - a cover (3) secured to said main part (2); - the cover (3) being secured to the main part along a peripheral collar (4), this collar (4) being connected to said peripheral lateral wall towards a cover side; - said main part (2) having a substantially rectangular cross-section in the region of the collar; - the cover (3) forming an outward curvature such that said cover contributes to a capsule volume; and - the collar (4) being at least 1.6 mm wide.