System for preparing beverages

Abstract

Described is a system for preparing beverages starting from a capsule (1) by injecting pressurised water comprising: a dispensing machine (5) comprising an injection device for supplying water under pressure to the capsule (1), a housing element (501) configured to house the capsule (1) and a dispensing device for closing the housing element (501) in a closed configuration of the dispensing machine (5), wherein the housing element (501) comprises an annular sealing edge (502), which extends about an axis (Z) and is configured to contact the capsule (1) in the closed configuration; wherein the capsule (1) comprises a casing (2), which comprises a base wall (201) and a side wall (202) defining a cavity (203) containing an initial product to be added to water for obtaining the beverage, and a flanged edge (204) extending from said side wall (202); a covering element (3), fixed to the flanged edge (204) for closing the cavity (203); a sealing element, associated with the flanged edge (204) for creating a fluidic seal with the sealing edge (502) in the closed configuration; wherein the sealing element is made as a cellulose-based annular body (401), for example it is made of paper or cardboard; and wherein the sealing edge (502) is provided with a plurality of radial open grooves (504) and radial crests (505) which in the closed configuration prior to dispensing penetrate, or contact, a sealing area (402) of the annular body (401), said grooves (504) and said crests (505) penetrating even more deeply into the sealing area (402) during dispensing, so as to improve the fluidic seal, when the annular body (401) is softened in contact with the water injected by the injection device.

Dependencies are inferred from the claim text.