Can hair go in your worm bin?
Yes, hair (human or pet) can go in the worm bin. It is a ‘green’ material, rich in nitrogen (protein), which benefits the compost. However, hair consists mainly of keratin, a tough protein that is broken down very slowly by microorganisms and worms in a worm bin. In addition, hair has a strong tendency to clump together and form dense masses, which can reduce aeration and hinder decomposition. Use hair from untreated sources (no dye, perms, etc.) and healthy pets (no recent flea/tick treatments or shampoos with harmful chemicals).
How much hair can you add?
Add hair in small quantities to your Bonter. Think of a small clump at a time, not large quantities daily. The most important thing is to spread it well and mix thoroughly with plenty of other waste and bedding (such as shredded cardboard or paper) to prevent clumping. Never add large balls of hair at once; they will compact and decompose slowly. Due to the very slow breakdown, you will see hair in your compost for a long time.
🍏 Ready to start composting indoors? Discover Bonter One, our composter for city living.
What to do instead? Alternatives & waste management
Because hair decomposes very slowly and can clump, it is not always the most ideal material for a fast worm bin. However, in small, well-managed quantities, it is perfectly fine. Large quantities of hair can go on a traditional compost heap, where (possibly at higher temperatures) the decomposition process is different. Hair can also be reused in certain crafts or as bird nesting material (if clean and free of chemicals). Avoid discarding it with residual waste if you can compost it, as it is valuable organic material.
A
B
C
A
B
C
A
B
C
Tips for composting hair
Add hair in small quantities. Spread the hair well and mix it thoroughly with the other waste and bedding (such as shredded cardboard or paper) to prevent clumping. Do not add it as a compact ball. Ensure it is well covered under a layer of bedding. Preferably use hair from untreated human sources (no dye, bleach, etc.) and from pets that have not had recent chemical treatments. The Bonter’s air filter helps with odours, but too much slow-to-decompose, clumping material can make the bin less healthy and reduce air circulation.
I’m Mats, founder of Bonter, and I’m on a mission to make indoor composting effortless, ensuring sustainability becomes second nature in your home.
Join 340+ early adopters
Frequently asked questions about vermicomposting hair
Can hair go in the worm bin?
Yes, human hair and pet hair can, but only in small quantities and well distributed throughout the bin.
Why does hair decompose so slowly?
Hair consists of keratin, a tough protein that is broken down very slowly by worms and microorganisms compared to, for example, vegetable or fruit scraps.
Should I cut hair into pieces?
Not necessarily, hair is already thin. But it is crucial to spread it well and mix it to prevent clumping.
Can pet hair go in the bin?
Yes, pet hair (such as from dogs and cats) may, provided the animals have not been recently treated with flea or tick products and the hair itself is clean.
Can I add too much hair?
Yes, too much hair (even when spread) slows down decomposition and can still lead to clumping, which hinders aeration. Add very limited quantities.
Discover more
easy wins for your bin
See how effortlessly your vermicomposter handles common kitchen scraps. These items are favorites of your composting crew and simply transform waste into a valuable resource.
Cress
Straw
Raspberries
Eggplant
Perfect for lush indoor plants, the garden, or sharing with the community.
Vegetables
From peels to stems, most vegetable scraps are a perfect meal for your composter.
Fruits
Cores, peels, and rinds provide the energy needed for a healthy, active system.
Household items
Coffee grounds, tea bags, and eggshells add valuable nutrients to your final compost.

