can you compost dryer lint?
Yes, but only if your laundry is mostly cotton, wool, or other natural fibers — lint from synthetic loads is shredded plastic.
breaks down in 1–3 months for natural-fiber lint, moistened and mixed in
C:N ≈ 400:1
which bins can take it?
- hot pile caution
- cold pile caution
- worm bin caution
- bokashi no
- tumbler caution
- curbside caution
- hot pile: Fine once you have confirmed the load was cotton, linen, or wool — bury the moistened wad instead of laying it on top.
- cold pile: Same natural-fiber check, then work it in; a dry mat on a slow pile just sits there shedding water.
- worm bin: Natural-fiber lint works as bedding once dampened; keep lint from synthetic-heavy loads out entirely.
- tumbler: Natural-fiber loads only, and dampen it first — dry lint balls up against the drum wall rather than mixing.
- curbside: Many curbside programs exclude lint because of the synthetic-fiber problem — check your accepted list.
why?
Lint is whatever your clothes shed: cotton and linen fibers digest like any other brown, wool adds a little slow nitrogen, and polyester and nylon fragments are microplastics that survive composting and end up in your soil. A typical American wardrobe is more than half synthetic fabric, so most lint traps hold a blend, and microbes can't sort one fiber from the other.
how to prep it
- Check what you actually dry — compost lint only from mostly-cotton and wool loads
- Moisten the wad so it doesn't repel water
- Pull it apart and mix it in; whole clumps mat down
watch out for
- Polyester, nylon, and spandex fibers never break down — lint from a typical mixed wardrobe seeds your compost with microplastics.
- Lint from loads dried with dryer sheets carries softener residue; skip it if the compost feeds a vegetable garden.
often confused with
- Dryer Sheets — The sheet itself is polyester cloth with a softener coating — it never composts, whatever the lint verdict is.
quick answers
Is dryer lint a green or a brown?
A brown. It's mostly cellulose fiber with almost no nitrogen, so pair it with food scraps or grass clippings rather than adding it to an already carbon-heavy pile.
How do I know if my lint is safe to compost?
Go by the loads, not the lint. Towels, sheets, denim, and cotton shirts make compostable lint; athletic wear, fleece, and blends do not. If you can't say what a load was, treat that lint as trash.