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How to Recycle Used Cooking Oil & Grease
Check local acceptanceLast reviewed September 27, 2026
Quick answer
Never pour cooking oil or grease down a sink, toilet, or storm drain. Take cooled, clean oil to a local cooking-oil collection program if one exists; otherwise seal small household amounts and follow your local trash instructions. Before you go, confirm that a local recycling center accepts the material in its current condition.
- Recycling route
- Check locally
Used vegetable oil, frying oil, animal fat, and cooking grease from household kitchens; not automotive motor oil.
Where to Recycle
- Municipal cooking-oil collection events or drop-offs where offered
- Used-cooking-oil collectors for restaurants and other businesses
- Sealed household trash route when no local recovery program exists
How to Prepare
- 1Let hot oil cool fully before handling
- 2Pour reusable or recyclable oil into a clean, sealed container and label it cooking oil
- 3Check the collection site for container, water, and food-particle limits
- 4For small amounts without a collection option, seal the cooled grease and follow local trash guidance
- 5Wipe residual grease from pans instead of washing it into a drain
Special Instructions
Do not mix cooking oil with motor oil, solvents, or chemicals. Commercial kitchens often have a dedicated grease collection service and different legal requirements. Restaurants use a grease trap to catch fats, oils, and grease before they reach the sewer, then a hauler pumps the tank. Compost programs commonly exclude bulk oil and grease; verify before adding any.
Environmental Impact
Keeping fats, oils, and grease out of pipes prevents clogs and sewer backups. Some collected cooking oil is processed into biodiesel or other products where a collection market exists.
Official guidance and resources
Accepted items and drop-off rules can vary by location. Check the destination before you go.
What’s Accepted
Accepted
- Cooled used cooking oil at programs that list it
Not Accepted
- Cooking oil in a drain or storm sewer
- Cooking oil mixed with automotive used oil
- Bulk grease in compost without explicit approval
FAQs
Can cooking oil go to a motor-oil recycling site?
No, unless that site separately says it accepts cooking oil. Keep food oil and automotive oil in separate containers.
Can I pour grease down the drain with hot water?
No. It can cool and solidify farther along the pipe, causing clogs and sewer backups.
Recycle used cooking oil & grease
Search recycling centers by city or ZIP, or explore more food waste materials.