What Is Collagen Casing Made Of?

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Collagen casing is a popular choice for sausage makers, but not many people know what it is made of. In this article, we will explore what collagen casing is made of and its benefits.

What is Collagen?

Collagen is the main structural protein found in the skin, bones, tendons, and other connective tissues in the body. It is responsible for providing strength and elasticity to these tissues. Collagen is made up of amino acids, which are the building blocks of proteins.

What is Collagen Casing?

Collagen casing is a thin, edible film that is used to encase sausages, hot dogs, and other meat products. It is made from collagen extracted from animal hides and bones. The collagen is then processed to form a thin, flexible film that can be used to wrap meat.

Benefits of Collagen Casing

There are several benefits of using collagen casing in meat products. Firstly, it is a cost-effective alternative to natural casings such as sheep or hog intestine. Secondly, it is easier to use and produces a more consistent product. Finally, it is a healthier option as it is low in fat and cholesterol.

How is Collagen Casing Made?

The process of making collagen casing involves several steps. Firstly, the collagen is extracted from animal hides and bones. This is done by soaking the hides and bones in an acid solution to break down the collagen. The collagen is then purified and processed to remove any impurities. Next, the purified collagen is extruded through a small opening to form a thin, flexible film. The film is then dried and cut into the desired size and shape. The collagen casing can then be used to encase meat products.

Types of Collagen Casing

There are two main types of collagen casing: edible and non-edible. Edible collagen casing is made from high-quality collagen and is safe to eat. It is commonly used in sausages and hot dogs. Non-edible collagen casing is used in other applications such as medical devices and industrial products.


In conclusion, collagen casing is a popular choice for sausage makers as it is cost-effective, easy to use, and produces a consistent product. It is made from collagen extracted from animal hides and bones through a process of extraction, purification, and extrusion. Collagen casing is available in both edible and non-edible forms and is a healthier option than natural casings.