Cooking Oil & Grease Hazardous Waste Dispose of large amounts of cooking oil and grease (such as that from deep frying a turkey) for free at a Household Hazardous Waste Facility in San Luis Obispo County. For small amounts (such as that from cooking bacon), let the cooking oil and grease solidify then scrape into the trash. Find out what to do with household hazardous waste Never Pour Down the Drain Do not pour used vegetable oil or cooking grease down your sink drain. Liquid oil can clog the drain and damage pipes in your home. Ways to Reuse Filter and Reuse It You can reuse cooking oil more than ten times. Simply filter out the food particles by straining the oil into a clean container. Did You Know? Cars Running on Cooking Grease Many companies and cities are beginning to ask people to donate oil, grease and fat for the creation of biodiesel. Places all around the country have achieved success, from Hawaii to Louisiana, Pennsylvania and New York. The homebrew fuel movement has taken off, and biofuels are becoming a competitive fuel choice. During WWII, Disney Helped Turn Bacon into Bombs “Don’t throw out those lovely puddles of grease drippings—save them for our boys on the front line.” Learn more.