10 Surprising Things That Are Actually Compostable

Most home composters know the core list: fruit and vegetable scraps, coffee grounds, eggshells, yard waste, garden trimmings, paper. What gets less attention is the longer, weirder list of household items that compost cleanly but rarely make it into the bin because nobody thinks of them as compostable.

Adding these to your compost stream isn’t going to transform your household waste profile — they’re small individual items — but they shift a couple of percentage points of what would have been landfill into the compost pile. Cumulatively, that matters. And in some cases, the alternatives (throwing hair in trash bags, washing nail clippings into the drain, throwing dryer lint in landfill) have specific small downsides that composting avoids.

Here are ten items most households throw away that compost well — with handling notes and a few items that look compostable but actually aren’t.

1. Hair Clippings (Yours, the Kids’, the Pet’s)

Hair is keratin protein. Keratin biodegrades slowly but reliably in active compost piles. A typical haircut from a single household member produces maybe 1-3 ounces of hair clippings; pet grooming sessions can produce several ounces from a single dog or cat brushing.

Handling: Add small amounts at a time, scattered throughout the pile rather than concentrated in one clump. Hair adds nitrogen (high N content from amino acids) and provides structural reinforcement to the pile as it slowly decomposes.

Timeframe: Pet fur and human hair break down in 2-6 months in active piles. Synthetic hair extensions and dyed hair containing some synthetic colorants take longer.

What not to compost: Hair from people with recent chemical treatments (perms, bleach, certain dyes) is fine for compost going on lawns or ornamental plants but probably shouldn’t go on vegetable beds. The chemical residue is small but real.

2. Nail Clippings

Same family of materials as hair — fingernails and toenails are keratin. Cuts from a manicure or a home pedicure are 100% compostable.

Handling: Mix into the compost layer. The volume is so small (a few grams per clip) that it disappears into the pile.

Timeframe: 3-9 months to fully break down.

Note: Acrylic or gel nail extensions are NOT compostable — those are plastic. Only natural nail clippings.

3. Dryer Lint (Natural Fibers Only)

The lint trap in your clothes dryer collects fibers from your clothes. If your clothes are mostly cotton, linen, wool, hemp, or other natural fibers, the lint composts cleanly.

Handling: Empty the lint trap into the compost bucket. Lint is dry and provides browns (carbon) to balance wet greens like food scraps.

Timeframe: 1-3 months in active piles.

Critical caveat: Lint from synthetic-blend clothing (polyester, nylon, acrylic, polyester blends) is NOT fully compostable. The natural fibers in the blend will break down, but the synthetic portion persists as microplastic in your finished compost. If your laundry includes synthetic clothing — which is most modern wardrobes — the lint is a mix of compostable and non-compostable fibers, and dedicated composting probably isn’t worth the contamination risk.

For households with mostly natural-fiber wardrobes (linen, wool, cotton-only clothing), lint composts fine. For mixed wardrobes, the lint is probably best landfilled to avoid microplastic contamination of your compost.

4. Used Tea Bags (But Read the Label First)

Most tea bags are paper, with some natural-fiber blends. Many compost cleanly. But not all of them — the question is the bag material and the closure mechanism.

Compostable tea bags:
– Plain paper bags (Lipton, generic store brands, most loose-leaf “paper” bags)
– Bags with cotton or hemp closures
– Bags labeled “biodegradable” or “compostable”

NOT fully compostable tea bags:
– Bags with plastic mesh (Pyramid bags from Lipton, PG Tips, Tetley pyramid styles — many have plastic mesh that doesn’t break down)
– Bags with plastic-coated stitching
– Bags with metal staples or plastic-coated string

A common pattern: open the tea bag, dump the loose tea leaves into compost, throw the bag itself in trash if you’re unsure. The tea leaves are definitely compostable; the bag may or may not be.

Handling: For confirmed compostable bags, add directly to the compost bucket including string and tag.

Timeframe: Paper bags break down in 2-6 months. Plastic mesh bags persist much longer (and shouldn’t be in compost).

5. Wine Corks (Natural Cork Only)

Natural cork — the kind that comes from cork oak trees — composts in 2-5 years in active piles. Slow, but real.

Natural cork: The traditional cork that pops out of wine bottles, looks brownish-gray, slightly springy. Compostable.

Synthetic cork: Plastic cork (looks like cork but is solid plastic, often with a smoother texture). NOT compostable.

Champagne corks: Often natural cork in the bottom mushroom portion but synthetic in the top portion. The bottom can be composted; the top should be trash.

Handling: For occasional wine drinkers, single corks go in the compost bucket. For households that consume substantial wine, collecting corks for return to wine retailers (some have cork-recycling programs through ReCORK partnership) is more efficient than slow composting.

Timeframe: Years, not months. Cork is mostly lignin and breaks down slowly.

6. Cotton Swabs (Paper Stick Only)

The cotton tip is compostable. The stick depends on what it’s made of:

Compostable stick types: Paper stick (most “biodegradable” cotton swabs from brands like Q-Tips New Format, or Eco-friendly brands), bamboo stick (specialty brands).

NOT compostable: Plastic stick (most conventional Q-Tips and generic cotton swabs).

Handling: Compostable swabs go in the compost bucket including any cotton soiled with skin oils. Used cotton swabs from medical or wound care use should NOT be composted — go to trash for sanitation reasons.

Timeframe: Cotton portions in 2-4 months. Paper sticks in 4-6 months.

7. Vacuum Cleaner Dust and Sweeping Debris

The dust your vacuum collects is mostly: dust mite frass (basically dust mite waste), hair, skin flakes, food crumbs, dirt tracked in from outside, occasional small bug bodies. Almost all of this is compostable.

Handling: Empty vacuum canisters or bags directly into compost. Sweep dust from floors directly in.

Timeframe: 1-3 months for fine dust.

Critical caveat: Vacuum dust collects whatever is in the floor. In homes with mostly natural fibers, the dust is mostly compostable. In homes with substantial synthetic carpeting (polyester carpet fibers, nylon carpet fibers), vacuum dust contains microplastic and probably shouldn’t go to compost going on vegetable beds.

If you vacuum a synthetic carpet, that vacuum dust contains synthetic fibers and is best landfilled rather than composted. If you vacuum hardwood, tile, or natural-fiber rugs, the dust is composting-friendly.

8. Bamboo Toothbrushes (Just the Handle)

Bamboo toothbrushes have a wooden bamboo handle and synthetic-or-natural bristles. The handle composts. The bristles often don’t.

Handling: Pull the bristles out (pliers help) — they’re often nylon and need to go in trash. The bamboo handle goes in compost.

Timeframe: Bamboo handle in 3-6 months.

Some toothbrushes have fully compostable bristles — typically pig hair or specialized compostable nylon. Read the brand’s specific disposal guidance.

9. Natural Floss

Standard waxed nylon dental floss is plastic and NOT compostable. But several brands now make compostable floss:

Compostable floss brands:
– Dental Lace (silk floss with vegan wax)
– The Humble Co. (cornsilk floss in compostable packaging)
– Hum Cleanly (silk floss)

Handling: After use, the floss strand goes in the compost bucket. The packaging (often glass or compostable cardboard) follows separate disposal.

Timeframe: 2-6 months.

Note: Conventional nylon floss is everywhere. Don’t compost it. The “biodegradable” or “compostable” floss category is small and specific.

10. Pet Bedding (Natural Materials Only)

Hay, straw, untreated wood shavings, paper bedding from small-animal cages all compost cleanly. Animal urine and feces in the bedding add nitrogen.

Compostable pet bedding:
– Hamster/guinea pig hay bedding
– Untreated wood shavings (aspen, pine — though pine has slight terpenes that some advise against)
– Paper-based bedding (Carefresh and similar brands)
– Coconut coir bedding

NOT compostable for home piles:
– Cedar shavings (terpenes can be persistent)
– Cat litter (most types contain bentonite clay that doesn’t compost)
– Heated treated bedding that may contain additives

Handling: Mix into outdoor compost pile, ideally not in worm bins (rodent urine/feces is high-ammonia for worm systems).

Timeframe: 2-6 months for paper and hay bedding; 4-12 months for wood shavings.

Important caveat: Pet waste from omnivores (dogs, cats, ferrets) is NOT recommended for home composting going on food crops — it can carry parasites that survive cool composting. Pet waste from herbivores (rabbits, guinea pigs, hamsters) is generally fine.

What NOT to Compost Even Though It Looks Like You Could

A few items frequently appear on lists of “compostable items” but actually shouldn’t be composted at home:

Bones. Beef bones, chicken bones, fish bones don’t break down in home compost in any reasonable timeframe. They persist for years and may attract scavengers. Stick to trash or pet treats.

Cooked food with sauces. Pizza crusts, leftover pasta with red sauce, oily fried foods. These attract rodents, raccoons, and other pests in unprotected piles. Acceptable in sealed bokashi systems or composting drums; not great in open piles.

Glossy magazine paper. The glossy coating contains synthetic materials that don’t compost cleanly. Standard newsprint and paper compost fine; magazine paper doesn’t.

Glossy or laminated cardboard. Standard corrugated cardboard composts fine; cardboard with glossy printing or plastic lamination doesn’t.

Cigarette butts. Filter contains plastic. The tobacco-and-filter combination shouldn’t go in compost.

Treated lumber sawdust. Sawdust from pressure-treated, painted, or stained wood contains chemicals you don’t want in your compost or your future garden soil.

Pet litter scoops or wipes. Even “biodegradable” wipes often contain synthetic fibers. Litter contains bentonite. Both are best landfilled.

“Compostable” packaging materials in home piles. Many “compostable” cups, plates, and packaging are only compostable in industrial commercial composting facilities. They don’t break down at home compost temperatures.

The Cumulative Effect

For a typical household incorporating most of these items into composting:

• Hair (1-2x per month): 50-100g per month
• Nail clippings: 10-20g per month
• Dryer lint (if natural fiber): 50-150g per month
• Tea bags: 100-300g per month
• Vacuum dust (if non-synthetic): 200-500g per month
• Pet bedding (if pets): 200-800g per month
• Other items occasionally: 50-200g per month

Cumulative: roughly 0.5-2 pounds per month of additional composting input that would otherwise have gone to landfill. Over a year, 6-24 pounds per household. Across millions of households, the aggregate is meaningful.

More importantly, getting in the habit of asking “is this compostable?” before throwing things in the trash is the same habit that catches the rare item that really does belong somewhere else — and the household trash bag shrinks by 5-15% as the surprising compostables get redirected.

The compost pile is more flexible than people give it credit for. Within reasonable limits, almost anything that was once alive — plant, animal, fiber, fungus — eventually composts. The list of “ten surprising things” could easily be twenty or fifty.

A Few Final Cautions

Before extending your composting habit further, three quick reminders worth keeping:

When in doubt, don’t. If you can’t confirm an item composts cleanly, putting it in trash beats contaminating your pile. A single nylon-mesh tea bag, synthetic-blend dryer lint clump, or plastic-stick cotton swab in a pile is forgivable. Many of these collectively can introduce enough microplastic to compromise the compost you put back on your garden.

Test in small amounts first. If you’re unsure how a new item composts, add a small amount and see what happens over a few weeks. Visible breakdown means continue; persistence as a recognizable object six months later means stop.

Adjust by season. Hot-weather active compost piles handle more diverse inputs than cold winter piles. Items that work in summer (hair, lint) may persist longer through winter — bank them in a separate container and add to the spring pile if your winter activity is low.

Start with a few. Make the switch part of the household rhythm. The pile handles the rest.

For B2B sourcing, see our compostable paper hot cups & lids or compostable cup sleeves & stir sticks catalog.

Background on the underlying standards: ASTM D6400 defines the U.S. industrial-compost performance bar, EN 13432 harmonises the EU equivalent, and the FTC Green Guides govern how “compostable” can be marketed on packaging in the United States.