Seattle Public Utilities

Fats, Oils and Grease Disposal

Cooking-Oil-And-Grease -Clogs -Pipes

Cooking Oil and Grease Clog Pipes

No one wants their sewage back.

What-Should-I-Do-With-All-This-Grease

Oil and grease from food preparation can build up in pipes and lead to sewage backups, expensive plumbing bills, and pollution in Puget Sound.

View a video of a clogged pipe due to cooking oil and grease.

Read our Frequently Asked Questions .

Sources of cooking oil and grease include:

  • Cooking oil (all types), butter, shortening, lard, and margarine
  • Oil/grease from cooking meats
  • Oil leftover after frying foods
  • Greasy sauces and mayonnaise
  • Mixed juice at the bottom of roasting pans
  • Gravy, sauces, and soups
  • Fatty food scraps
  • Floating fat (on water) after crock pot/Dutch oven cooking
  • Oil/grease from roasting or pan sautéing veggies or meat
  • Dairy products like milk, cream, sour cream, ice cream
  • Oils that solidify at cool temperatures, like olive oil and coconut oil

Proper disposal of used cooking oil and grease:

The correct way to dispose of cooking oil and grease depends on the amount you have.

Step 1 : Cool oil and grease

Step 2 : Remove oil and grease from pots and pans:

  • Small amounts of oil and grease can be wiped up by paper towels or newspaper and placed in the compost.
  • Large amounts of liquid oil can be poured into a container, closed with a lid, and placed next to your recycling cart for curbside pickup.
  • Large amounts of grease can be scraped into a container, covered with a lid, and placed in the garbage.

Information available in the following languages:

· Español

· 中文