Mould on Stored Clothes: Why It Happens and How to Remove It

Mould on stored clothes is the sort of nuisance you often notice only when you are already in a hurry: you grab an item from the wardrobe and find a stale smell and those annoying little marks. It is usually the result of poorly ventilated wardrobes, too many garments crammed in, and trapped moisture attacking natural fibres-leading to a strong odour, stubborn stains and, over time, even tears.

Why does mould appear on stored clothes?

Mould is caused by fungi that feed on tiny traces of dirt left on fabric: sweat, skin cells, deodorant residue, cream, perfume, or detergent that was not rinsed out properly. In a closed, damp space, these leftovers become “food” for a colony to grow-especially in wardrobes placed against a cold wall or in homes in very humid areas.

As time passes, the colonies spread through the fabric and small velvety-looking spots start to appear. They show up more clearly on light-coloured clothing, but they also occur on dark items-often giving themselves away first through that distinctive “stored clothes” smell. If you do nothing, the fungus can transfer to other garments, drawer linings, shelves and even nearby fabric bags.

How does mould affect fabric over time?

Mould on clothes begins when spores cling to the surface of the fabric, particularly where it is damper or dirtier, and then release substances that effectively “digest” organic residue. That activity is what creates dark marks and the typical “closed wardrobe” smell, which indicates the fungi are active.

If the item stays stored for a long period, the fungus can work its way into the fibres, thinning the cloth and leaving weak points-especially in silk and viscose, which can tear easily. With denim and heavier cotton, the damage tends to be slower, but you may still see areas that look worn, weakened, or that rip exactly where the mould has been acting for the longest.

How to remove mould stains without fading the clothes?

To remove mould stains from coloured clothing with less risk of fading, a common home method uses water, white vinegar and bicarbonate of soda. The vinegar helps inhibit fungi and cut through the odour, while the bicarbonate of soda helps lift grime lodged in the fibres and is gentler than chlorine-based products.

Here is a straightforward step-by-step for using this mixture safely on mouldy items:

1. Keep the mouldy item separate from the rest of the laundry to avoid contaminating the wardrobe.
2. Mix 1 part white vinegar to 2 parts water in a bucket or basin.
3. Soak the garment for 30 to 40 minutes, ensuring the stained areas are well covered.
4. Remove the item and apply bicarbonate of soda directly to the damp stains.
5. Rub gently with your hands or a soft brush, using light movements.
6. Rinse thoroughly under running water to remove the vinegar and bicarbonate of soda.
7. Wash as normal with a mild detergent and, if possible, dry in the sun.

Always test the solution on a hidden area-such as an inside hem-before treating the whole garment, particularly with delicate fabrics or very bright colours. For sensitive clothing, shorten the soaking time and simply massage the fabric rather than scrubbing, to avoid damaging the fibre structure.

How to stop mould coming back on stored clothes?

A simple, effective habit to prevent mould on clothes is to store items only when they are completely dry and to air the wardrobe regularly. This lowers internal humidity, makes conditions harder for fungi, and reduces the chance of the problem returning-especially in coastal homes or very rainy towns and cities.

It also helps to leave wardrobe doors open for a few minutes each day, avoid overfilling shelves, and use sachets or moisture-absorbing tubs in drawers and compartments. When these steps are combined with periodic cleaning of the wardrobe interior and quick action whenever a small patch of mould appears, clothes are more likely to last longer-looking newer and smelling fresh for much longer too.