Seattle Curbside Recycling: Your Practical Guide to Accepted Materials

Seattle is committed to sustainability, and your role in proper curbside recycling is crucial. Understanding what can and cannot go into your residential recycling bin is essential to prevent contamination, ensure materials are actually recycled, and support the city’s environmental goals.

Why Seattle’s Recycling Rules Matter (and How They Differ)

Recycling isn’t a one-size-fits-all process. What’s accepted in one city might be a contaminant in another. Seattle’s recycling system is tailored to its local processing facilities and markets for recycled materials. Contamination occurs when non-recyclable items are mixed with recyclables, which can lead to entire batches being sent to the landfill, damage equipment, and increase processing costs.

Universal recycling symbols, like the chasing arrows, often indicate a material’s potential to be recycled, not necessarily that it’s accepted in Seattle’s curbside program. Always prioritize local guidelines over general symbols.

Your Curbside Bin: What Accepted Materials Look Like & How to Prep Them

Seattle’s curbside recycling program focuses on a core set of materials, often referred to as the ‘Big 5’. Proper preparation is key for these items.

Paper & Cardboard

  • Accepted: Newspapers, magazines, catalogs, junk mail, phone books, paper bags, cereal boxes, tissue boxes, paper towel rolls, cardboard boxes (flattened), milk cartons, juice boxes, egg cartons.
  • Preparation: Keep paper and cardboard dry. Flatten cardboard boxes to save space. For cartons, rinse lightly if necessary.
  • Special Note for Shredded Paper: Must be placed in a paper bag and tied or stapled shut to prevent it from scattering and jamming machinery.

Plastics (Bottles, Jugs, Tubs)

  • Accepted: Plastic bottles (soda, water), plastic jugs (milk, detergent), and plastic tubs (yogurt, butter, sour cream, deli containers). Look for the numbers #1, #2, and #5, though acceptance is primarily by shape and use.
  • Preparation: Rinse containers to remove food residue. You can leave caps on plastic bottles and jugs.
  • Size Matters: Items must generally be larger than 2 inches in two dimensions to be sorted effectively.

Metal Cans & Glass Bottles/Jars

  • Accepted: Aluminum beverage cans, steel food cans, aluminum foil (clean, wadded into a ball 2 inches or larger), glass bottles and jars (clear, brown, green).
  • Preparation: Rinse thoroughly. Labels can stay on. No need to remove lids from glass jars if they are metal.

The ‘No-Go’ List: Common Items to NEVER Put in Your Curbside Bin

Placing incorrect items in your recycling bin is called ‘wishcycling’ and is a major source of contamination. These items can damage sorting equipment, endanger workers, and render otherwise recyclable materials unusable.

  • Plastic Bags & Plastic Film: This includes grocery bags, dry cleaner bags, Ziploc bags, plastic wrap, bubble wrap, and other flexible plastics. They tangle in machinery and must be kept out.
  • Styrofoam: All forms of Styrofoam (packing peanuts, cups, trays, take-out containers) are not accepted in curbside recycling.
  • Food-Soiled Items: Pizza boxes with grease stains, used paper plates, or containers with significant food residue belong in the compost (if applicable) or garbage.
  • Electronics (E-waste): Computers, TVs, cell phones, and other electronics contain hazardous materials and require special disposal.
  • Clothing & Textiles: Fabric items, shoes, and clothing are not accepted in curbside bins.
  • Diapers: Never place diapers in recycling.
  • Hazardous Waste: Batteries, paint, motor oil, light bulbs, chemicals, and medical waste are prohibited.
  • Small Items: Anything smaller than 2 inches in two dimensions (e.g., bottle caps not attached to bottles, small plastic lids, single-serve coffee pods) falls through sorting equipment and becomes trash.
  • Ceramics, Dishes, or Window Glass: These items have different melting points and chemical compositions than glass bottles/jars and cannot be recycled with them.

Common Recycling Mistakes to Avoid in Seattle

To ensure your efforts truly contribute to a cleaner environment, be mindful of these frequent errors:

  • Recycling plastic bags, film, or flexible packaging: These clog machinery and are a primary source of contamination.
  • Not thoroughly rinsing food containers: Leftover food spoils paper and other recyclables, making them unrecyclable.
  • Wishcycling: The ‘when in doubt, throw it out’ rule applies. If you’re unsure, it’s better to put an item in the garbage than contaminate the recycling stream.
  • Recycling small plastic items: Small bottle caps, tiny plastic lids, and other items under 2 inches fall through sorting screens.
  • Placing shredded paper loosely in the bin: It needs to be contained in a paper bag to prevent dispersal.
  • Assuming universal recycling symbols are accepted: Always defer to Seattle’s specific local rules over generic symbols.

Beyond the Bin: Recycling Options for Other Materials in Seattle

Many items not accepted in your curbside bin can still be recycled through alternative programs in Seattle.

  • Plastic Bags & Film: Many grocery stores offer drop-off bins for clean, dry plastic bags and film.
  • Batteries & Electronics: SPU provides resources for safe disposal of batteries and e-waste, often through designated drop-off sites or special collection events. Hazardous waste facilities also accept these.
  • Hazardous Waste: The City of Seattle and King County operate Household Hazardous Waste (HHW) drop-off facilities for chemicals, paints, motor oil, and other dangerous materials.
  • Textiles: Local charities and specialized textile recycling programs accept clothing, shoes, and other fabrics for reuse or recycling.
  • Styrofoam: Some private companies or special events may offer Styrofoam recycling, but it’s not a city-wide curbside service.

Check the Seattle Public Utilities (SPU) website for comprehensive information on these alternative disposal options.

Quick Decision Guide: Before You Toss or Recycle

Use this rapid checklist at home to quickly determine the correct disposal method for an item:

  • Is this item paper, cardboard, a plastic bottle/jug/tub (numbered 1, 2, or 5), a metal can, or a glass bottle/jar?
    • If NO, it likely doesn’t go in the curbside bin. Check SPU’s website or trash it.
  • Is the item completely empty, clean, and dry with no food or liquid residue inside?
    • If NO, clean it, compost it (if organic), or trash it.
  • Is the item larger than 2 inches in two dimensions and smaller than a 5-gallon bucket?
    • If NO, it’s likely too small for curbside sorting or too large for the bin. Check SPU’s website.
  • Is it a plastic bag, plastic film, Styrofoam, or any type of ‘scrunchable’ flexible plastic packaging?
    • If YES, it does NOT go in the curbside bin. Look for store drop-offs or trash it.
  • If shredded paper, is it contained within a paper bag before being placed in the recycling bin?
    • If NO, put it in a paper bag or trash it.
  • When in doubt, have you checked the Seattle Public Utilities ‘Look It Up’ tool for specific guidance?
    • If NO, check the tool. If still unsure, put it in the garbage to avoid contamination.

How to Verify in Seattle Today

Staying up-to-date with Seattle’s recycling guidelines is easy with these practical steps:

  1. Use the SPU ‘Where Does It Go?’ Tool: Visit the official Seattle Public Utilities website and use their online lookup tool. Simply type in an item, and it will tell you exactly how to dispose of it in Seattle.
  2. Review the SPU Residential Recycling Page: Explore the dedicated recycling section of the SPU website (e.g., www.seattle.gov/utilities/services/recycling) for detailed lists, FAQs, and updates on accepted materials and preparation guidelines.
  3. Check Your SPU Collection Calendar/Mailer: Seattle Public Utilities often sends out guides or includes recycling information in their annual collection calendars or service mailers. These can serve as a quick reference for common items.

Frequently Asked Questions (FAQ)

Q: Can I recycle pizza boxes?

A: Only if they are clean and free of grease. If the cardboard has grease stains or food residue, it should be composted (if your building has food waste collection) or placed in the garbage. Tear off and recycle any clean parts of the box.

Q: Do I need to remove labels from bottles and cans?

A: No, you do not need to remove labels from glass bottles, jars, or metal cans. They will be removed during the recycling process.

Q: Are plastic bottle caps recyclable?

A: Yes, if they are still attached to the plastic bottle or jug. Loose caps are generally too small to be sorted and can fall through machinery. You can also consolidate loose caps into a larger container (like a plastic jug) and cap it before recycling.