Most yoga mat smell is sweat and damp that never fully dried out, so the cure is air and complete drying rather than a stronger cleaner. Hang the mat open in shade where air moves for a day or two; if a smell lingers, hand wash a cotton mat cold or wipe a grass mat with a damp cloth, and dry it flat before you roll it again. Diluted white vinegar can help on cotton after a test patch, but never soak a grass or banana-fibre mat, and keep plant-dyed mats out of direct sun.
Why a yoga mat starts to smell
- Sweat left in the fibre. Cotton absorbs sweat, which is why it grips better damp, but a sweaty mat rolled up straight after class cannot dry.
- Damp storage. A cupboard in the monsoon, a car boot or a zipped mat bag all trap moisture. Mustiness is the smell of damp that stayed.
- New material smell. Rubber and foam mats often arrive with a factory smell that fades with airing. Our cotton, grass and banana-fibre mats carry a thin layer of natural tree latex brushed onto the underside, which can have a faint rubbery note when new; it airs off. If you are allergic to natural latex, choose with care and write to us first.
Step by step: airing and cleaning
- Unroll and air first. Lay or hang the mat open in shade where air moves: under a fan, on a balcony out of the sun, over two chairs. Give it a full day; a musty mat may need two.
- Shake and brush. For the Sambu Diamond and our other grass mats, shake out dust and brush along the weave with a soft, dry brush.
- Wipe or wash, depending on the mat. See the table below. Cotton can be washed; grass and banana fibre can only be wiped.
- Try diluted white vinegar on cotton only. Mix one part white vinegar with four or five parts cold water. Dab it on a corner of the underside and let it dry; if the colour is unchanged, wipe the top with a cloth wrung out in the solution. The vinegar smell goes as the mat dries.
- Rinse if you washed. Rinse a hand-washed cotton mat in cold water until it runs clear. A little colour in the water is normal with plant dyes.
- Dry completely, flat, in shade. Hang it with air on both sides and turn it once. Roll it only when it is dry right through, including the latex underside. In the wet months this takes longer than you expect; see how to dry a yoga mat in the monsoon.
What not to do
- Do not dry a plant-dyed mat in direct sun. Sun fades indigo, turmeric and the other plant colours faster than anything else.
- Do not soak, hose or machine wash a sambhu grass or banana-fibre mat. The grass swells and the binding loosens.
- Do not use bleach, fabric softener or a tumble dryer on any of our mats.
- Do not roll a mat that is even slightly damp, or store it in a closed bag.
- Do not rely on a scented spray; it masks the smell for an afternoon. If you want a light cleaning spray, our simple natural recipe explains where it helps.
Per-mat cheat sheet
| Mat | After a sweaty class | Deep clean when it smells | Diluted vinegar? |
|---|---|---|---|
| Indico, Prana Shakti, Prithvi (cotton) | Hang open in shade until dry | Hand wash cold with a mild natural detergent; dry flat in shade | Yes, after a test patch |
| Diamond Clay, Diamond Orange (7 mm cotton) | Hang open in shade until dry | Delicate 30 °C machine cycle in a laundry bag, or hand wash; dry flat away from sun | Yes, after a test patch |
| Sambu grass mats and Banana Fibre | Shake out, air in shade | Wipe with a damp cloth; never soak | No |
| Darbha | Wipe, air in shade, keep dry | Wipe clean; fold for storage | No |
We do not claim that vinegar, or anything else, disinfects a mat. Diluted vinegar cuts through the sour note sweat leaves in cotton; the real work is done by washing and complete drying.
Frequently asked questions
Can I use vinegar on a grass yoga mat?
No. Sambhu grass and banana-fibre mats should never be soaked or wetted beyond a damp cloth. Shake out dust, wipe with a cloth wrung out in plain cold water, and air the mat in shade until completely dry. If a smell remains, the cause is usually damp storage, so give it more time in a breeze rather than more liquid.
Why does my new mat smell faintly of rubber?
Our cotton, grass and banana-fibre mats have a thin layer of natural tree latex brushed onto the underside for grip, and fresh latex can smell faintly for the first week or two. Unroll the mat and air it in shade and the smell fades. The Darbha mat is backed in cotton cloth and has no latex layer. If you are allergic to natural latex, choose with care and write to us first.
Will sunlight remove the smell from my yoga mat?
Sunlight dries a mat quickly, but direct sun fades plant dyes, so we ask you not to dry our dyed mats in it. Shade with moving air does the same job a little more slowly and keeps the colour. A fan blowing across a mat hung over two chairs is the most reliable method we know.
How often should I wash a cotton yoga mat to stop it smelling?
Air it after every practice and wash it only when it needs it: every two to four weeks for daily sweaty practice, a few times a year for gentler practice. Hand wash cold with a mild natural detergent, separately for the first few washes, and dry flat in shade. Washing more often than necessary softens the latex grip and the plant colour sooner.
If your mat is clean but still faintly musty, unroll it tonight, latex side up, under a fan. And for a hot, sweaty practice, the breathable Sambu Diamond and the washable Indico are the two we reach for ourselves.
