Collagen casings are the complete solution for all sausage applications, including freezing, deep fat frying, grilling and oven cooking. Collagen casings are supplied on a shirred stick and the amount needed for each application can be cut off. Collagen casings are made from the gelatinous substance used to make the famous gelatin dessert. Most commercially purchased sausage in the USA is stuffed into collagen casings. Our collagen casings all have a great 2fer deal where you get those deep discount prices we all love for buying two.