What is the covering of a sausage made out of?

Sausage casings can be made from a variety of materials, the most common being:

Natural:

* Animal intestines: The most traditional casing, often made from sheep, pig, or beef intestines. These casings are known for their natural flavor and texture.

* Collagen: A protein derived from animal tissues, collagen casings are made into a thin, edible tube. They are often used for smaller sausages and offer good texture and flexibility.

Artificial:

* Cellulose: A plant-based material, cellulose casings are edible and can be used for various sausage types. They are known for their smooth texture and lack of flavor.

* Fibrous: These casings are made from a blend of plant-based materials and are typically used for larger sausages. They offer good durability and can withstand higher cooking temperatures.

* Plastic: While plastic casings are not edible, they are used in some cases for their affordability and durability. They are often used in mass-produced sausages and removed before cooking or serving.

The type of casing used will depend on the type of sausage being made, as well as the desired texture, flavor, and cooking method.