Most paper towels can go in 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 wood pulp, which is organic material that microorganisms can digest. The catch is that many paper towels sold today are bleached, treated with chemicals, or designed to be extra absorbent in ways that slow decomposition or introduce substances you may not want in finished compost.
The safest rule: check what the towel is made from before you toss it. If it is plain paper with no coating, dye, or chemical treatment, it will compost. If it has been treated to resist moisture, repel liquids, or stay white under bleach, it may not break down properly or may leave residue behind.
Key Takeaways
- Unbleached, uncoated paper towels compost successfully because they are pure wood pulp with no chemical barriers to decomposition.
- Bleached white paper towels can compost, but the bleach itself does not harm the pile — it breaks down during the composting process.
- Paper towels with lotion, aloe, or antimicrobial coatings should not go in compost because those treatments do not break down.
- Paper towels used to wipe up meat, dairy, or oils can go in compost if your pile reaches hot temperatures, but cold piles should exclude them.
- Shredding or tearing paper towels into smaller pieces speeds up decomposition in any compost system.
Bleached versus unbleached paper towels
Bleached paper towels are white because they have been treated with chlorine or oxygen-based bleaching agents during manufacturing. Many home composters worry that bleach will harm their pile or contaminate the finished compost. In reality, the bleach breaks down during the composting process and does not persist in the final product. The microorganisms and heat in an active compost pile degrade the bleaching chemicals into harmless compounds.
Unbleached paper towels are brown or tan because they skip the bleaching step. They decompose slightly faster than bleached ones, but both types will break down in a compost pile. If you are building a new compost system and want to minimize any chemical input, unbleached is the better choice. If you already have bleached towels at home, composting them is safe.
Paper towels with coatings and treatments
Some paper towels are treated to be extra absorbent, antimicrobial, or moisture-resistant. These treatments create a barrier that slows or prevents decomposition. Common examples include paper towels with aloe vera, lotion, or antibacterial silver compounds. These should not go in your compost pile because the coating will not break down and will remain as fragments in your finished compost.
Check the package label or the manufacturer's website if you are unsure whether your towels have a treatment. Look for words like "treated," "infused," "antimicrobial," or "lotion." If the towel feels slick or has a noticeable scent beyond plain paper, it likely has a coating. Plain paper towels feel dry and have no odor.
Using paper towels that touched food or grease
Paper towels used to wipe up meat, fish, dairy, or cooking oil can go in compost, but the safety depends on your pile's temperature. A hot compost pile — one that reaches 140°F or higher — will kill pathogens from raw meat and break down fats quickly. A cold compost pile — one that sits passively without turning or heating — will not reach those temperatures, and meat and dairy can attract pests or create odor problems.
If you maintain a hot pile by turning it regularly and monitoring temperature, paper towels from meat preparation are fine. If you have a passive or cold pile, stick to plant-based food scraps and avoid meat, fish, and dairy-soaked towels. Grease-soaked towels can go in either type of pile, but they decompose slowly, so shredding them helps.
How to prepare paper towels for composting
Tearing or shredding paper towels into smaller pieces speeds up decomposition. A whole paper towel can take several months to break down because microorganisms work from the outside in. Smaller pieces expose more surface area and decompose in weeks instead. You do not need to do this — whole towels will eventually compost — but shredding is a straightforward way to speed the process.
Mix shredded paper towels with "green" materials like grass clippings, food scraps, or fresh plant trimmings. Paper towels are a "brown" or carbon-rich material, and they compost faster when balanced with nitrogen-rich greens. A rough ratio of three parts brown to one part green keeps the pile active and prevents it from becoming a dense, slow mat of paper.
Paper towels versus other paper products in compost
Paper towels are not the only paper product you can compost. Newspaper, cardboard, paper bags, and office paper all break down in a compost pile. Paper towels are actually easier to compost than thick cardboard because they are thinner and decompose faster. Newspaper and office paper behave similarly to paper towels — plain, uncoated versions compost well, while glossy or heavily inked versions decompose more slowly.
Avoid composting paper products that have been treated with wax, plastic coating, or waterproofing. Takeout containers, coffee cups, and freezer paper often have these coatings and should go in the trash instead. If you are unsure whether a paper product has a coating, tear it and look at the edge — a coating will show as a distinct layer or will not tear cleanly.
Frequently Asked Questions
Will bleached paper towels make my compost toxic?
No. Bleach breaks down during composting and does not persist in the finished product. Studies of compost made with bleached paper show no harmful residue. You can safely compost bleached paper towels.
Can I compost paper towels that have mold on them?
Yes. Mold is a sign that decomposition is already happening. Paper towels with mold will break down faster than clean ones. Mold is part of the normal composting process and will not harm your pile.
How long do paper towels take to compost?
Shredded paper towels in an active, hot pile can decompose in four to eight weeks. Whole paper towels in a cold pile may take three to six months. The exact time depends on pile temperature, moisture, and how much you turn it.
Can I compost paper towels used to clean up pet waste?
No. Paper towels contaminated with pet feces should go in the trash. Pet waste can contain pathogens that home compost piles do not reach high enough temperatures to kill. Only human waste in a specialized system should be composted.
Do I need to remove paper towels from my compost if I realize they have a coating?
If you have already added them, you do not need to dig them out. They will straightforward decompose more slowly or remain as fragments. For future batches, check the label before composting. Removing them now is not worth the effort unless your pile is very new.