Mold on clothing comes off with vinegar, bleach, or borax depending on the fabric
The method depends on what the garment is made of and how much mold is there. For most washable fabrics, white vinegar or borax in the wash cycle kills mold spores. Bleach works on white cotton and linen but damages colors and delicate fibers. If the mold smell is strong or the stain covers a large area, the garment may be too far gone — mold that has eaten into fibers for weeks is harder to reverse than fresh surface growth.
Start by taking the moldy item outside and brushing off loose spores with a stiff brush or old toothbrush. Do this outdoors so spores don't spread inside your home. Then wash using one of the methods below based on fabric type.
Key Takeaways
- White vinegar kills mold on most fabrics and costs less than specialized products; use one cup in the wash cycle.
- Bleach removes mold from white cotton and linen but will damage colored or delicate fabrics permanently.
- Borax powder works on most washable fabrics and is gentler than bleach; dissolve it in water before adding to the wash.
- Mold returns if clothing stays damp or sits in a humid closet, so dry items completely and store them in a cool, dry space with air circulation.
- If mold has been on a garment for more than a few weeks, the damage may be permanent and the item may not be worth saving.
Vinegar wash for most fabrics
White vinegar is the safest choice for colored and delicate fabrics because it does not bleach or weaken fibers. Add one cup of white vinegar to the rinse cycle or directly into the drum before washing. Wash in hot water if the fabric can handle it — heat helps kill spores — or warm water for delicates. Run a normal wash cycle with your regular detergent.
The vinegar smell will fade once the clothes dry. If the mold smell lingers after one wash, repeat the cycle. For stubborn odors, soak the item in a mixture of one part vinegar to three parts water for 30 minutes before washing.
Bleach for white cotton and linen only
Bleach kills mold faster than vinegar but will permanently discolor anything that is not white. Use only on white cotton, linen, or other white natural fibers. Add one-half to one cup of bleach to the wash cycle depending on the load size and how much mold is present. Wash in hot water on a normal cycle.
Never mix bleach with vinegar or ammonia-based cleaners — the combination creates toxic fumes. If you have already used vinegar on the item, rinse it thoroughly and let it dry before using bleach.
Borax powder for stubborn mold
Borax is a mineral powder that kills mold spores and works on most washable fabrics without the bleaching risk of chlorine. Dissolve one-half cup of borax in hot water, then add the solution to your wash cycle along with regular detergent. Wash in hot water if the fabric allows it.
Borax is less common in stores than vinegar or bleach but is usually found in the laundry aisle. It costs slightly more than vinegar but is gentler on colors. For very heavy mold, you can soak the item in a borax solution for one to two hours before washing.
Drying and storage to prevent mold from returning
Mold grows back if clothing stays damp or sits in a humid, poorly ventilated space. After washing, dry the item completely — use a dryer on medium heat if the fabric allows it, or hang it in direct sunlight and moving air. Sunlight naturally kills mold spores, so outdoor drying is ideal on a dry day.
Store clean, completely dry clothing in a closet or drawer with good air circulation. Avoid plastic storage bins or sealed bags, which trap moisture. If your closet is damp, use a small dehumidifier or place open boxes of baking soda on shelves to absorb moisture. Check stored items every few weeks, especially in humid seasons, and move them around to let air reach all sides.
When to throw the garment away
If mold has been on a garment for several weeks or longer, the spores may have penetrated deep into the fibers and the smell may not come out. Wash the item once using one of the methods above. If the mold smell or visible staining remains after drying, the garment is not worth the effort or water to wash again.
Mold that has damaged the structural integrity of the fabric — making it thin, weak, or brittle — will not recover. If the item is sentimental or expensive, take it to a professional dry cleaner and ask whether they can remove the mold; they have access to stronger treatments. Otherwise, discard it and focus on preventing mold on the rest of your wardrobe.
Why mold grows on clothing in the first place
Mold needs three things: moisture, warmth, and darkness. Damp clothing left in a hamper, a wet bathing suit stuffed in a gym bag, or a sweater stored in a humid basement all provide these conditions. Mold can begin growing in as little as 24 to 48 hours on damp fabric.
The best prevention is to dry wet items completely before storing them and to keep your closet, drawers, and storage areas dry and ventilated. If you live in a humid climate or have a damp basement, consider storing off-season clothing in a different location or using moisture-absorbing products like silica gel packets or activated charcoal.
Frequently Asked Questions
Can I use regular laundry detergent alone to remove mold?
Regular detergent cleans dirt but does not kill mold spores. You need vinegar, bleach, or borax added to the wash to actually kill the mold. Detergent alone may reduce the smell temporarily but the mold will return.
Is it safe to wash moldy clothes with other items?
Wash moldy items separately on the first cycle to avoid spreading spores to other garments. After the mold is gone, the item is safe to wash with other clothes. If you are concerned about spores in your washer, run an empty hot cycle with vinegar or bleach after washing the moldy item.
Will the mold smell go away even if I can't see the stain?
Mold smell comes from spores and the compounds they produce, not just visible staining. If the smell remains after washing and drying, spores are still present. Repeat the wash cycle or try a different method — vinegar if you used bleach, or borax if vinegar did not work.
Can I use a steam cleaner or iron to kill mold on clothing?
Heat alone does not reliably kill mold spores embedded in fabric. Washing with vinegar, bleach, or borax is more effective because these chemicals penetrate the fibers. Steam or ironing may reduce the smell temporarily but will not remove the mold.
What if the mold is only on one small spot?
Even a small visible spot means spores have spread throughout the garment. Wash the entire item using one of the methods described rather than trying to spot-treat it. Spot-treating leaves spores in the rest of the fabric and the mold will return.