Abstract: Protective film for cans or drink and food containers in general, consisting of a thin layer from biodegradable plastic material, which wraps up the upper base of the can (2). The envelope (1) is easily removed by hand, thanks to simple tabs (3) provided along the circumference of the can (2) or on the upper face of the latter, or on the vertical symmetry plane of said can. The protective film solves the problem of dirt which builds up on cans when they are put up for sale and which enters the mouth when the can (2) is opened.