A capsule (1) for the preparation of infused or soluble beverages comprises a cup (2) suitable to contain a substance (11) to be infused or dissolved, provided internally with a base (33) provided with an outer edge (360) and a relief (320) between which is defined a depression (330) for the collection of the infused beverage. The capsule (1) comprises a disc (5) fixed in a peelable manner on the edge (360) so as to separate from it due to the effect of the pressure increase inside the capsule (1). The opening of the capsule (1) occurs as a result of the deformation of the disc (5) due to the pressure exerted by the fluid inside the capsule (1). Advantageously, the base (33), in correspondence of the depression (330), is provided with a plurality of supports (90, 91, 92) provided with a profile decreasing towards the depression (330), suitable to prevent the deformation of the disc (5) from interfering with the outflow of the beverage towards the opening (31).