Used Cooking Oil & Grease Recycling
United provides vegetable oil and animal fats collection, transportation, processing, and sales of refined products. We provide contract processing and refining for many large food processors throughout the Midwest.
United refines the collected fats and oils into products that can be used for Bio-Diesel fuels, animal feed supplements and products for the chemical industry. Our modern plant utilizes the latest technology and efficiency techniques to provide our clients with the best value while producing an exceptionally high-quality product.
Testimonials
“United saved us from costly downtime and a hefty washout bill, we appreciate their customer service and willingness to go above and beyond.” – WWS Trading
Recover More Value from Your DAF Sludge

Not all grease recovery companies are the same.
At United Grease, we go beyond collecting dissolved air flotation (DAF) sludge. Our proprietary processing capabilities allow us to recover valuable fats, oils, and grease (FOG) from many food processing waste streams that others simply dispose of.
By recovering these reusable resources, we can often reduce your overall disposal costs while supporting a more sustainable, circular approach to waste management. Instead of treating your DAF sludge as a liability, we look for opportunities to maximize its value through responsible resource recovery.
Whether your operation produces DAF sludge from meat processing, dairy, food manufacturing, beverage production, or other food processing applications, our team will evaluate your material and determine whether it qualifies for grease recovery. When it does, the value of the recovered FOG may help offset your disposal costs, creating a solution that benefits both your operation and the environment.