can you compost meat?
Only in a curbside food-waste bin, a bokashi bucket, or a hot enclosed pile — meat in an open backyard heap invites trouble.
breaks down in 1–3 months in a hot pile; small bones linger longer
C:N ≈ 8:1
which bins can take it?
- hot pile caution
- cold pile no
- worm bin no
- bokashi yes
- tumbler caution
- curbside yes
- hot pile: Only if you bury it in the hot center, cap it with browns, and hold the pile at 131°F or above for three days.
- bokashi: The standard indoor workaround — but fermenting only pickles the scraps, so bury the mash to finish it and keep that spot off leafy crops.
- tumbler: Sealed drums block animals but rarely hold 131°F — small scraps only, not a whole roast, and keep that batch off food crops.
- curbside: Most US curbside food-waste programs accept meat, raw or cooked.
why?
Meat is dense protein and fat, and the bacteria that dismantle it release the sulfur and amine compounds that make rot smell like rot — a signal raccoons, rats, and loose dogs can follow from a block away. It also carries pathogens that only heat clears: USDA-recognized composting standards call for 131°F held three days, which a turned insulated pile can reach and a cold heap never does.
how to prep it
- Cut scraps into pieces under two inches
- Bury them a foot down in the hottest part of the pile
- Cap the spot with a thick layer of leaves, straw, or sawdust
- Freeze scraps until you have enough to bury in one go
watch out for
- Compost that has held meat should stay off leafy food crops unless the pile hit 131°F for three straight days — put it on ornamentals if you're unsure.
- Pest-proofing matters more than heat here: a lidded bin with quarter-inch hardware cloth underneath stops most diggers.
- Some homeowners' associations and city bin rules ban meat in outdoor compost outright.
often confused with
- Bones — Soft tissue and bone part ways in a pile — the meat goes in weeks, the bone survives intact.
quick answers
Why do most composting guides say never compost meat?
Those guides assume an open backyard bin, which is the one system where meat genuinely fails. The advice predates widespread curbside food-waste collection, and where a program exists, meat is one of the things it handles best.
Does meat make compost smell?
Only when it goes anaerobic. Buried in an aerated pile with plenty of browns it is odorless within days; sitting in a wet packed heap it produces ammonia and putrescine, and everything nearby knows it.