Abstract: Disposable filter cartridge for espresso coffee machines. The cartridge has a body with a height of 25.6 mm, calculated from the top of its filling end (A) to the opposite end (B) for discharging the coffee, said body in turn being composed of a cylindrical part (C) with a height of 17.5 mm which is connected to an oval-shaped part (D) truncated at the end, the outer diameter of the cylindrical part (C) being 35 mm, said cylindrical part (C) being connected via a curved wall part (D) having a radius of curvature of 16 mm to the bottom part (B) which has in turn an outer diameter of 18.5 mm.