A capsule for improved beverage quality

Abstract

The present invention is directed to a capsule (1) for use in a beverage preparation machine, said capsule comprising: (i) lateral walls (2), a pierceable injection wall (3) adapted to be pierced by fluid injection means (4) of the machine, and a dispensing wall (5) adapted to dispense said beverage, that delimit a closed internal volume, (ii) a flexible fluid distributor wall (7), that is located inside the closed volume of the capsule, at a distance below the pierceable wall (3) so as to separate:—a headspace compartment (8) between the pierceable wall (3) and said fluid distributor wall (7) which is able to accommodate the injection means during injection of the fluid, and—an ingredient compartment (9) located between said fluid distributor wall (7) and said dispensing wall (5), containing a bed of non-soluble beverage ingredient particles, characterized in that the head-space compartment (8) contains a superabsorbent polymer (10) able to absorb a quantity of the injected fluid, and swell so as to fill the headspace compartment (8) and exert a pressure force onto the surface of the fluid distributor wall (7) to prevent substantial movement of ingredient particles while said fluid traverses said ingredient.

Dependencies are inferred from the claim text.