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Uncontained liquids are not allowed in the garbage. Two firms accept residential used cooking oil for recycle: General Biodiesel (206) 932-1600 and Standard Biodiesel (206) 388-3869. Please call them for information on their residential cooking oil drop-off sites.
To dispose of used cooking oil in your curbside pickup, you may:
  • Pour fats, oils and grease into a covered disposable container — such as glass, plastic or a sturdy Ziploc bag — that will seal and hold F.O.G. waste.and place it in the trash.
  • Mix the oil with an absorbent such as kitty litter or dirt to make the oil solid, and place in the trash.
F.O.G. waste cannot be recycled or composted. The benefit of throwing F.O.G. waste in the garbage to protect pipes and water outweighs the cost of disposing possible recyclable containers in the garbage.
If you have a large amount, do this over several collection days. Do not bring it to the Seattle or King County transfer stations for disposal.
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