Welcome to Kostelac Grease Service - 85 Years of being GREEN


Kostelac Grease Service is a family owned company that collects used cooking oils and fats from restaurants and other institutions within a 200-mile radius of the St. Louis Metro area. We collect and process bones and fat, as well as pump grease traps. After processing the used oils and fats, the finished product is shipped to various animal feed companies. It is then blended with other high-energy protein products as an ingredient for animal feed. Also, some of the finished product is used in the making of bio-diesel and other consumer goods. Our finished products include bleachable fancy tallow, yellow grease, brown grease and meat & bone meal.

Kostelac Grease Service has led the recycling industry for over 85 years through our dedication to service, our strong track record of on-time pick ups, and our concern for the rendering industry and the environment. Rendering is the oldest primary example of recycling. It is very important to our ecology and essential to public health.

Request a Pickup

Click Here to request a pick-up at your location or call us at 1-800-467-KGSI (5474).

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We Pay You for Your Grease

Join our growing list of satisfied restaurant owners who earn top dollar for their used grease.

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Full Service Operation

We collect grease, pump grease traps, pressure wash, pick up bones & fat, and more.

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Rendering News

Two Missouri Men Admit To Stealing Cooking Oil From Restaurants In Five States

February 2, 2016 am29 7:19 am

SPRINGFIELD, Mo. – Two men from Joplin have pleaded guilty to participating in a scheme that sold cooking oil stolen from restaurants in five states. Neal Robbins pleaded... (more)

Woman charged in grease theft

October 20, 2015 am31 3:07 am

Observant work by Edwardsville Police Sgt. Matt Breihan stopped the alleged theft of food grease. At approximately 4:36 a.m. on Sept. 27, Breihan was doing extra patrol when... (more)

Did you know that pizza boxes can’t be recycled because of grease?

September 15, 2015 am30 1:41 am

Pretty much everyone loves pizza, that is, except for Mother Earth. An environmentally-friendly pizza lover recently asked the Atlantic’s City Lab if pizza boxes were recyclable. Since they... (more)

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