Industrial Uses for Food Waste

Rendering refers to the processing of grease, fat, meat, or bone into usable products. Rendering companies process animal by-products into saleable commodities. Collection service areas, costs, and types of materials accepted vary. Grease from restaurants is a common by-product collected and processed by rendering or tallow companies, but many companies will also collect or accept meat, fat, bone, and dead animal carcasses.

If you have excess oil, grease, uncooked meat, bone, or animal blood, contact a local renderer for collection. These companies collect and process the materials into feedstock for a variety of products. Please contact rendering companies directly to arrange for service. Rendering companies are listed in the Yellow Pages under “rendering” or “grease collection.”


The National Renderers Association (NRA) provides services, programs, and technical support to the North American rendering industry, both in national and international markets. NRA publishes a magazine, and holds an annual spring meeting and an annual convention.

The National Biodiesel Board (NBB) represents the biodiesel industry in the United States. NBB provides information on fats and oils trading rules, legislative issues, a guide to buying biodiesel, fact sheets, definitions, specifications, and more.

Other Resources

The U. S. Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) provides information on its role in animal health and welfare, plant health, biotechnology, and more.

Please inquire with the California Department of Food and Agriculture for all information related to animal feed.

Food Scraps Management Home

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