Quick answer: Clean a leather bag with a microfibre cloth dampened in warm water and mild soap, wrung out until barely damp. Wipe gently, follow with a dry cloth, let it air-dry overnight, and condition it every few months. First, put one drop of water on a hidden spot: if it soaks in and darkens the leather, it is absorbent leather and needs as little water as possible. Never use alcohol, regular wet wipes, or heat.
Leather bags are damaged by the wrong cleaning far more often than by dirt. Wet wipes, alcohol hand sanitiser, and blow-drying to speed things up leave leather dry, cracked, or permanently blotchy. This guide starts with how to tell which kind of leather your bag is, because different leathers need different cleaning.
If your bag is a designer piece, has mould, or has a stain you are unsure about, see Nova’s bag spa service. For routine care, you can do it at home with the steps below.
Which leather is your bag? The 30-second water drop test
Put one drop of clean water on a hidden spot, such as under the flap or inside the strap, and wait 30 seconds. If the water soaks in and the leather darkens, it is absorbent (aniline) leather and needs minimal water. If the water beads on the surface, the leather has a protective finish and is easier to clean.
This is based on >the water drop test used to tell absorbent from protected leather, a standard check among leather repairers.
| Result | Leather type | How to clean it |
|---|---|---|
| Water beads, does not soak in | Pigmented (finished) leather, which most bags on the market are | A damp cloth with mild soap is fine |
| Water soaks in, leather darkens | Absorbent leather (aniline, semi-aniline): soft, with visible pores | Minimal water; dry cloths and a cleaner made for this leather |
| Napped surface, no shine | Suede and nubuck | No water; use a suede brush and suede eraser |
| Glossy, mirror-like surface | Patent leather | Wipe with a soft, barely damp cloth; watch for dye transfer from other items |
On absorbent leather the test spot usually fades as it dries, which is exactly why you always test somewhere hidden first.
How to clean a leather bag in 8 steps
Empty the bag and shake out debris, clean the inside with a lint roller, wipe the outside with a dry microfibre cloth, then with a cloth dampened in warm water and mild soap and wrung out, wipe again with a dry cloth, air-dry overnight, polish the hardware, and finish with leather conditioner.
These steps follow >Charles & Keith’s leather bag cleaning guide, adjusted for the water drop test above.
- Empty it and shake out dust: open every compartment, including the small zip pockets.
- Clean the inside: use a lint roller or a small vacuum attachment.
- Dust the outside with a dry cloth: remove grit first, or it will scratch the surface when you wipe it wet.
- Wipe with a barely damp soapy cloth: the cloth should be almost dry. Never pour water on leather. For absorbent leather, skip this step and use a cleaner made for that leather.
- Wipe again with a dry cloth: absorb any remaining moisture straight away.
- Air-dry overnight: in the shade. No hair dryer and no sun.
- Polish the hardware: use a cotton bud with a little metal polish, keeping it off the leather.
- Condition the leather: apply a thin layer all over, then let it dry again.
Charles & Keith recommends >conditioning every few months for bags in regular use, and warns that over-conditioning leaves a tacky, sticky surface.
What should you never use on a leather bag?
Never use alcohol, nail polish remover, regular wet wipes, or glass cleaner, which contain chemicals that damage the finish and strip the oils from leather. Do not soak it or wipe it until wet, and do not use heat to dry it, which makes leather stiff and brittle.
- Alcohol and acetone: >rubbing alcohol and acetone are the two most common chemicals that cause severe damage to leather. Nail polish remover contains acetone, which strips colour and leaves a bleached patch.
- Regular wet wipes: Charles & Keith warns that >wet wipes contain harsh chemicals that may cause leather to peel and crack.
- Glass cleaner and disinfectant wipes: most contain alcohol.
- Too much water: it spreads stains and invites mould.
- Heat: hair dryers and strong sun make leather stiff and brittle.
About Vaseline: this tip is widely shared on social media. We don’t recommend it. Petroleum jelly is not made for leather, and on absorbent leather the oil can soak in and leave dark patches. To condition leather, use a leather conditioner and test it on a hidden spot first.
Hand sanitiser: the culprit people overlook
If the handles or edges of a leather bag look faded, blotchy, or stained, a common cause is alcohol hand sanitiser. When you pick up the bag before your hands are dry, the alcohol attacks the finish exactly where your hands touch it, day after day.
In Bangkok many people carry sanitiser clipped to their bag and use it all day, so the handles get a dose of alcohol daily without anyone noticing. The problem has been documented on both >designer handbags and >leather shoes.
The fix is simple: let your hands dry completely before picking up the bag, and do not keep the sanitiser bottle in the same pocket as a small leather bag. Once handles are discoloured, the marks will not wipe off, because the finish itself is damaged. That needs colour restoration from a bag spa. Leather shoes suffer the same problem where you grip them to put them on; for shoes, see our sneaker and shoe cleaning service.
What to do about mould on a leather bag
For a thin layer of white mould on the surface, wipe it off with a dry cloth outdoors, then leave the bag to air in an airy, shaded spot. If the mould shows as green or black patches, or has gone into the leather, Charles & Keith recommends professional cleaning rather than home remedies like vinegar, which may disrupt the leather’s natural pH.
This follows >Charles & Keith’s advice on mould.
Bangkok’s humidity makes leather bags stored in a wardrobe for long periods prone to mould, especially in the rainy season. To prevent it:
- Store bags in fabric dust bags, never plastic, which traps moisture.
- Stuff them with paper to hold their shape, and store them upright rather than stacked.
- Take them out to air every 1 to 2 months, even if you are not using them.
- Keep a moisture absorber in the wardrobe, and open it now and then.
When should you use a professional?
- Designer or expensive bags: trial and error is not worth the risk.
- Mould in patches or deep in the leather
- Faded, blotchy, or peeling handles or corners: these need colour repair, not just cleaning.
- Ink, oil, or dye transfer from clothing: wiping at them yourself usually spreads the stain.
- Absorbent leather, suede, or nubuck with water marks
See bag spa prices, or send photos of the bag and the problem areas on LINE for the Nova team to assess first. We are on Soi Phetkasem 58, Phasi Charoen, Bangkok, and accept drop-offs 24 hours a day.
Frequently asked questions
Can I use baby wipes on a leather bag?
We don’t recommend it. Most wet wipes contain chemicals and fragrance that can dry, peel, and crack leather with repeated use. Use a microfibre cloth dampened with mild soapy water and wrung out instead.
How often should I clean a leather bag?
Dust it with a dry cloth regularly, wipe it with mild soapy water when marks start to show, and condition it every few months if you use it often. There is no need to wipe it wet every week; built-up moisture also wears leather out.
My leather bag got caught in the rain. What should I do?
Blot the water with a dry cloth straight away without rubbing. Stuff the bag with paper to hold its shape and absorb moisture, then let it dry in an airy, shaded spot. No hair dryer and no sun. Once dry, apply a thin layer of leather conditioner.
Can I use dish soap on a leather bag?
Yes, if it is heavily diluted and the leather is a finished type that water does not soak into. Wipe with a barely damp cloth, then with a cloth dampened in plain water, then dry it. Do not use it on absorbent leather or suede.
How long does a bag spa take?
It depends on the leather type and the bag’s condition. Colour repair or mould removal takes longer than routine cleaning. See our FAQ for details, or ask the Nova team on LINE.