Mould on Stored Clothes: How to Remove Stains and Prevent It

Mould on stored clothes is the sort of issue people tend to notice only when they are in a hurry: they take an item from the wardrobe and find an unpleasant smell and irritating little marks. Poorly ventilated cupboards, too many clothes and trapped moisture can attack natural fabric fibres, causing a strong odour, stubborn stains and, eventually, tears.

Why does mould appear on stored clothes?

Mould consists of fungi that feed on traces of dirt left on clothing, including sweat, skin cells, deodorant residue, cream, perfume or detergent that has not been rinsed out properly. In a closed, damp setting, this residue becomes “food” for the colony to develop, particularly in wardrobes placed against a cold wall or in homes located in very humid areas.

Over time, the colonies spread through the material, creating velvety specks. They are easier to spot on pale garments, but they can also affect dark clothes, where the stale stored-clothes smell is often the first warning sign. If left untreated, the fungus can spread to other items, drawer linings, shelves and even nearby fabric bags.

How does mould affect fabric over time?

Mould on clothing begins when spores settle on the surface of the fabric, especially on areas that are damper or dirtier, and release substances that “digest” this organic residue. This process produces dark marks and the familiar “closed-wardrobe smell”, which indicates that the fungi are active.

When a garment remains in storage for a long period, the fungus can work its way into the fibres, thinning the material and creating weak spots. This is particularly true of silk and viscose, which can tear easily. Damage occurs more slowly in denim and heavyweight cotton, but stretched, worn or torn areas may still develop exactly where the mould has been active for longest.

How to remove mould stains without fading clothes?

To remove mould stains from coloured clothing with a lower risk of fading, a common home treatment combines water, white vinegar and bicarbonate of soda. Vinegar can help inhibit fungi and neutralise odours, while bicarbonate of soda helps lift dirt clinging to the fibres and is gentler than chlorine-based products.

Follow these straightforward steps to use the mixture safely on mouldy garments:

1. Keep the mouldy item separate from other clothes to prevent the wardrobe from becoming contaminated.
2. In a bucket or washing-up bowl, mix 1 part white vinegar with 2 parts water.
3. Soak the garment for 30 to 40 minutes, ensuring that the stained sections are fully covered.
4. Remove the item and apply bicarbonate of soda directly to the damp marks.
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 usual with a mild detergent and, where possible, dry it in sunlight.

Always try the solution first on a concealed area, such as an inside hem, before using it on the entire garment, especially if the fabric is delicate or brightly coloured. For sensitive clothing, shorten the soaking time and massage the material only, to avoid harming the fibre structure.

How can you stop mould returning to stored clothes?

A simple, effective way to prevent mould on clothes is to store every item only when it is completely dry and to air the wardrobe regularly. This lowers humidity inside, makes conditions less favourable for fungi and reduces the likelihood of the issue returning, especially in seaside homes or towns with frequent rain.

It is also helpful to leave wardrobe doors open for a few minutes each day, avoid overfilling shelves and place moisture-absorbing sachets or containers in drawers and storage compartments. Combining these measures with regular cleaning inside the wardrobe and prompt removal of any mould growth can help garments last longer, retain a like-new appearance and smell pleasant for much longer.