COFFEE MACHINE

The present invention relates to a coffee machine (10) comprising:a coffee beans container housing (20) with a housing aperture (23) anda removable coffee beans container (30) having an aperture (32) and an aperture cover (33) for closing and opening the aperture (32) anda coupling element (40), wherein the container (30) has a cutting geometry (31) for cutting and grinding the coffee beans which stuck between the container (30) and the aperture cover (33).The present invention enables a coffee machine in which the probability of malfunction of the device has been limited by introduction of the cutting geometry on the edge of the aperture of the container. The geometry of the coupling element and the container housing provides the exact mutual positioning of the elements and provides a tight connection which prevents the leakage of the coffee residuals.