The “Original Recycler”
Originally used centuries ago to make soap, today rendering is the most effective and bio-secure solution to the disposal of inedible animal byproducts produced by our country’s food chain. For over 125 years, Darling has collected and rendered these inedible byproducts and recycled them so that they can be used by commercial manufacturers worldwide.

The rendering process takes place when heat is applied to remove the water from collected animal byproducts - both remnants and mortalities. What remains is pasteurized and separated into fats and proteins which are key ingredients in a broad range of products.

Rendering has adapted to the changes in technology and food habits and will continue to change in the future. Renewable energy is the latest transformation, and research is also being conducted on new applications such as bio-plastics.

More recently, yellow grease and tallow are being used as raw stock for bio-fuel production. Because these materials are recycled from waste products, bio-fuels produced in this way will not diminish the food supply and are not part of the “food for fuel” debate.

Learn more about bio-fuel.

Key Benefits:
By converting these highly perishable byproducts into useful products, Darling

• prevents the pollution of surface and ground water resources
• prevents the spread of diseases via rodents, scavengers and insects
• minimizes nuisance odors
• saves valuable space in crowded landfills
• offers a safe and cost-effective way of handling these perishable materials

For more information about our rendering operations or to obtain service, use our location search feature to find the location nearest you.