Compostable Bags

Using compostable bags is optional, however they may make it easier to collect food scraps.

  • They must be clearly labeled "compostable."
  • They are often green, pale green, or brown in color.
  • They are made from plant-based materials that break down when composted.
  • They are available at most grocery stores, pharmacies, and hardware stores.

Which bags to avoid:

  • Plastic bags, they do not break down and they ruin the compost.
  • Bags labels "degradable" or "biodegradable," they break down into small pieces of plastic.
  • Produce bag (unless they are labeled "Compostable").
  • Bags that are labeled “Compostable”, but are colors other than green or brown.

Multi-Family Properties

For multi-family and community living facilities, we recommended these replacement bag sizes for indoor bins.

In apartments and condos, the food waste carts that are collected by drivers should have a compostable liner bag that is installed every week. Learn more about compost service and how to report missed collections or liners.


Public Utilities

Andrew Lee, General Manager and CEO
Address: 700 5th Avenue, Suite 4900, Seattle, WA, 98104
Mailing Address: PO Box 34018, Seattle, WA, 98124-5177
Phone: (206) 684-3000

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Seattle Public Utilities (SPU) is comprised of three major direct-service providing utilities: the Water Utility, the Drainage and Wastewater Utility, and the Solid Waste Utility.