Corn steep powder (CSP) is considered a byproduct of the corn wet milling process, but it is more accurately described as a “co-product” rather than a byproduct. Corn wet milling is a process used to separate various components of corn, including starch, protein, and fiber, for various industrial and food applications. In this process, the liquid portion that remains after the separation of starch and other components is known as corn steep liquor (CSL).

Corn steep powder is derived from corn steep liquor through a drying process. It is essentially a concentrated and dried form of the liquid byproduct, and it contains various valuable nutrients and compounds. CSP is rich in amino acids, vitamins, and minerals, making it a valuable resource for several applications:

Animal Feed: Corn steep powder is often used as an ingredient in animal feed formulations, particularly for livestock and poultry. Its high protein content and nutrient profile make it a useful component for animal nutrition.

Fermentation Industry: CSP can be used as a nutrient source in various fermentation processes, such as in the production of amino acids, enzymes, and other bioproducts.

Food and Beverage Industry: It may be used as an ingredient in certain food products and beverages, especially in applications where its nutrient content is advantageous.

Agriculture: CSP can also be used as a soil conditioner or fertilizer due to its nutrient content.

So, while CSP does originate as a byproduct of the corn wet milling process, it is often considered a valuable co-product that can be used in various industries, thus turning it from a waste byproduct into a resource product.