A cartridge (1) for coffee or soluble products for producing a beverage, includes a container (2) able to contain the coffee or soluble product, a lid (6) disposed over the container so as to define a top wall for entry into the container (2) of the hot water under pressure for formation of the beverage, a filter (4) suitable for being positioned inside the container (2) above a bottom wall (20) of the container through which the beverage exits, wherein the bottom wall (20) of the container has a less thick central area (22), at the center of which are disposed thickening ribs (27) along the edge of which there are etchings (26) able to break when the liquid inside the cartridge reaches a pre-set pressure value, so as to form flexible tongues (28) which give rise to apertures (50) through which the beverage is delivered.