Take a bag out of the cupboard after a few months in Singapore and there is a fair chance it will have a faint musty smell, or a dusting of white or greenish spots along the seams. That is mould. Leather is organic, the air here is humid all year, and a closed cupboard gives mould everything it needs. The good news: caught early, surface mould usually comes off. Here is how to remove mould from a leather bag without damaging it, and how to store your bags so it does not come back.
Is it mould, or is it bloom?
Not every white film is mould. Leather can develop a white, slightly waxy bloom as the fats in it rise to the surface, often after a change in temperature.
- Bloom is even, waxy to the touch, does not smell, and wipes away with a dry cloth.
- Mould sits in spots or patches — often at seams, corners and folds — looks fuzzy or powdery, smells musty, and tends to come back.
If it wipes away cleanly and does not smell, it is almost certainly bloom, and a buff with a soft cloth is all it needs.
How to remove mould from a leather bag
For light surface mould on smooth, finished leather:
- Take it outside, or onto a balcony. Brushing mould indoors spreads its spores to everything else in the room — including your other bags.
- Brush it off gently with a soft, dry brush or a dry microfibre cloth. Do not rub it into the grain.
- Deal with the inside too. Mould often starts in the lining, where it is dark and still. Empty every pocket, brush the lining out, and vacuum the seams if you can.
- Wipe with a cleaner made for finished leather, applied to a cloth — never directly to the bag. Test it somewhere hidden first.
- Dry it in the shade with moving air — near a fan or in an air-conditioned room, stuffed loosely with paper. Never in direct sun, and never with a hairdryer.
- Condition lightly once it is completely dry.
A word on vinegar and alcohol
You will read that diluted vinegar or rubbing alcohol kills mould. It does — and on a designer bag either can also lift colour, strip the finish and dry the leather out. If you use one, dilute it well, test it somewhere hidden, and use as little as possible. On anything valuable, we would rather you did not.
When to leave it to a professional
- The mould is in the lining, or has come back after cleaning
- The leather is suede, nubuck, untreated natural cowhide or an exotic skin
- The bag is a light colour, where cleaning marks show
- The spots have left stains or discolouration behind
- The musty smell stays after the surface is clean
Our bag spa includes an interior and exterior deep clean, conditioning and an anti-bacterial treatment, from S$70 per item. If mould has marked the colour, that is colour restoration, quoted once we have seen it.
How to store leather bags in Singapore's humidity
Mould needs moisture, still air and something to feed on. Take those away and it has nowhere to start.
- Keep the air dry. Store bags in a room where air-conditioning or a dehumidifier runs regularly — not a spare room that stays shut.
- Let them breathe. Use the cotton dust bag each one came with, or a plain cotton pillowcase. Never store leather in plastic.
- Use moisture absorbers in cupboards and drawers, and replace them when they are full.
- Clean before you store. Skin oils and food residue are what mould feeds on. Empty and wipe a bag before it goes away — here is how.
- Stuff with acid-free tissue, not newspaper. Ink transfers, and newspaper holds damp.
- Give each bag space, off the floor and away from external walls, where cupboards run coolest and dampest.
- Take them out. Every few weeks, open the cupboard, air the bags and check the seams. Bags that are carried rarely go mouldy. Forgotten ones do.
Found mould on a bag you are thinking of selling? Clean it first — a musty bag is worth noticeably less. See where to sell a luxury bag in Singapore.
Bring it in
Send a photograph on WhatsApp to 9754 5910, or bring the bag to 20 Cecil Street, #02-02 PLUS. We will tell you whether it needs a spa, a restoration, or just the steps above.