Most paper towels can go in your compost, but not all of them
Plain, unbleached paper towels break down in a compost pile just like other paper products — they are made from plant fiber and will decompose over time. The catch is that many paper towels sold in stores are bleached, treated with chemicals, or printed with inks that slow decomposition or leave residue behind. If your paper towels are white and bright, they have likely been bleached. If they have patterns, logos, or colored printing, those inks may not break down safely in a home compost system.
The safest rule is to compost only paper towels that have been used to wipe up food or water — not those that touched chemicals, oils, or non-food substances. A paper towel that wiped up a spill of cooking oil, for example, will take longer to break down and may create a greasy layer in your pile. Paper towels used to clean with bleach, ammonia, or other household cleaners should never go in compost.
Key Takeaways
- Unbleached, unprinted paper towels used on food or water can be added to compost and will decompose within weeks to months depending on pile conditions.
- Bleached white paper towels and those with colored printing or logos should not go in compost because the chemicals and inks do not break down safely in home systems.
- Paper towels that touched cooking oils, grease, or household chemicals belong in the trash, not compost, because they slow decomposition and can contaminate the finished product.
- Shredding paper towels before adding them to compost speeds up breakdown and helps them mix evenly with other materials.
How to tell if your paper towels are safe to compost
Look at the color and surface of the paper towel. If it is bright white, it has been bleached — bleach is a chemical that does not fully break down in a home compost pile and can leave traces in your finished compost. If the paper towel has any printing, pattern, or colored design on it, those inks are also problematic. Even inks labeled as "soy-based" or "eco-friendly" are not designed to decompose in a compost environment and will persist in the finished product.
The best paper towels for composting are natural kraft paper or unbleached brown paper towels. These are sold in some grocery stores and online, often labeled as "eco-friendly" or "unbleached." They cost more than standard white paper towels, but if you compost regularly, the difference matters. If you only have standard white paper towels at home, you can still compost them in small amounts — a few paper towels mixed into a large pile will not harm the compost — but do not make them a regular part of your compost feedstock.
What happens to paper towels in a compost pile
Paper towels are mostly cellulose, the same material that makes up leaves, grass, and cardboard. In a compost pile with the right moisture, temperature, and air flow, microorganisms break down cellulose into simpler compounds. A paper towel in an active compost pile — one that is turned regularly and stays warm — can decompose in two to four weeks. In a passive pile that you do not turn, the same paper towel may take two to six months.
The speed of breakdown depends on how finely the paper towel is shredded. A whole paper towel takes longer to decompose than one torn into small pieces, because microorganisms have less surface area to work on. If you want faster results, tear or shred your paper towels before adding them to the pile. This also helps them mix more evenly with other compost materials instead of clumping together.
Paper towels used for food versus those used for cleaning
A paper towel used to wipe up spilled food, dry vegetables, or blot moisture from cooked meat is safe to compost. These uses do not introduce substances that harm decomposition. A paper towel used to wipe up cooking oil or grease is slower to compost but still acceptable in small amounts — the oil will eventually break down, though it may create a temporary greasy layer in your pile.
Do not compost paper towels that have touched household cleaners, disinfectants, bleach, ammonia, or any chemical product. These substances kill or inhibit the microorganisms that drive decomposition, and they can persist in your finished compost. Paper towels used to clean up pet accidents, mold, or mildew should also go in the trash. If you are unsure whether a paper towel touched a chemical, throw it away — the risk to your compost is not worth the small amount of material you save.
Alternatives to composting paper towels
If you compost regularly and want to reduce waste, consider switching to cloth towels or rags for everyday cleanup. Cloth can be washed and reused hundreds of times, which eliminates the need for disposable paper towels altogether. For tasks where you do need a disposable option, unbleached paper towels are the best choice — they cost more upfront but are genuinely compostable and do not leave chemical residue behind.
Another option is to use paper towels only for tasks where cloth is impractical — wiping up raw meat, cleaning up pet accidents, or handling very wet spills. For drying hands, wiping counters, and general cleanup, cloth towels work just as well and last far longer. If you do use paper towels, saving them for compost instead of the trash is a small but real reduction in landfill waste, even if the paper towels themselves are not ideal for composting.
What to do with paper towels if you do not compost
Paper towels are recyclable in most curbside programs, but only if they are clean and dry. A paper towel that has been used to wipe up food, grease, or moisture cannot go in the recycling bin because it contaminates the paper stream. Wet or soiled paper towels belong in the trash. If your paper towel is clean and dry — for example, one used to wipe dust off a shelf — it can go in your recycling bin along with other paper products.
Check your local recycling program's rules before putting paper towels in the bin. Some programs accept all paper, while others exclude paper towels because they are short-fiber paper that causes problems in the recycling process. When in doubt, throw the paper towel in the trash rather than risk contaminating a batch of recyclables.
Frequently Asked Questions
Can I compost paper towels with food stuck to them?
Yes. Food residue on a paper towel does not prevent composting — in fact, it adds nitrogen to your pile. Tear the paper towel into smaller pieces so it breaks down faster, and make sure your compost pile is warm and moist enough for active decomposition. Avoid paper towels with meat, dairy, or oils in large amounts, as these can attract pests or create odor problems in a passive pile.
Are bamboo paper towels better for composting than regular ones?
Bamboo paper towels are often unbleached and printed with fewer inks than standard paper towels, which makes them a better choice for composting. However, check the packaging to confirm they are truly unbleached and unprinted. Some bamboo towels are still bleached white or have colored designs, in which case they are no better for composting than regular paper towels.
How much paper towel is too much to add to compost at once?
There is no hard limit, but paper towels should not make up more than 10 to 15 percent of your compost pile by volume. If you add too many at once, they can clump together and slow decomposition. Spread them throughout the pile, shred them into small pieces, and mix them with other materials like grass clippings, leaves, and food scraps.
Do paper towels make compost smell bad?
Paper towels themselves do not cause odor. Odor in compost usually comes from too much moisture, not enough air flow, or too many nitrogen-rich materials like food scraps. Paper towels are carbon-rich and help balance a pile that is too wet or too nitrogen-heavy. If your compost smells, the problem is usually the overall mix, not the paper towels.