Collagen casings are made from high-quality natural collagen from animal hides, so they are edible. Collagen casings are highly permeable to smoke and moisture. The casing is fully adhered to the sausage, become part of the formulation, and therefore is fully edible. We have special formulations to ensure the casing adheres fully to all types of sausages, whether it’s shrinkage or stretching during filling and cooking. Collagen casings have 20 ~ 30% higher smokehouse productivity compared to natural casings. The production process does not need extra cleaning. No selection for sizing nor preparatory work is required.  Collagen casing are highly suited for mechanical filling. The shape and size of sausages are highly regular and consistent due to our unique process innovations.