the invention relates to edible molded bodies in the form of a flat or tubular film based on plastifiable biopolymers , the cleavage products or derivatives thereof and / or synthetic polymers from natural monomers , characterized in that they are produced according to a method comprising the following steps : a ) the biopolymers , cleavage products or derivatives thereof and / or synthetic polymers are mixed with at least one edible plasticizer , at least one lubricating agent and at least one cross - linking agent , b ) the mixture thus obtained is melted into a thermoplastic material , c ) said material is extruded and d ) the product obtained by extrusion is calendered and / or stretched or blown and deformed into the edible molded body . the molded bodies cited in the invention are suitable for use as food wrappers for sausages and boiled ham , and are particularly suitable for use as seamless sausage casings .