Patent ID: 8667890

Claim:
A cartridge for coffee or soluble products for the production of a beverage, comprising: a container ( 2 ) designed to contain coffee or soluble product; a lid ( 6 ) arranged on the container ( 2 ) so as to define an upper wall through which hot water under pressure enters the container in order to produce the beverage; a filter ( 4 ) designed to be positioned inside the container ( 2 ) above a bottom wall ( 20 ) of the container through which the beverage leaks; said bottom wall ( 20 ) of the container having at least one breakable portion designed to break when the liquid inside the cartridge reaches a pre-set pressure, so as to form at least one aperture ( 50 ) to allow the beverage to be extracted from the cartridge ( 1 ), characterized in that said at least one breakable portion is obtained by means of a pre-etching or groove ( 26 ) delimiting a less thick portion ( 22 ) of the bottom wall ( 20 ) of the container ( 2 ) from stiffening central ribs ( 27 ), so as to form at least one flexible tongue ( 28 ), which is attached to said bottom wall ( 20 ) along an edge ( 35 ) and can be separated from said central ribs ( 27 ) to determine said aperture ( 50 ) for the beverage leakage.