How to Remove Mold/Mildew from Leather Shoes

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Frank asked: How do I  clean mold/mildew from leather shoes? The shoes were stored in a dark, damp location. I now have a green colored mold or mildew on and inside of several pairs of shoes. How do I safely remove it and protect against this in the future?

Mold requires moisture to grow. Whether it comes from perspiration that develops while wearing or from a damp room, the moisture must be removed to stop the growth of mold and mildew. Once the source of the problem is identified, you can remove the mold and mildew once and for all. There are different methods for leather shoes, depending on the durability of the leather. Suede and Nubuck should be treated the gentlest to avoid damaging the nap on the surface.

You Will Need:

  • Simple Green
  • Stiff nylon brush
  • White vinegar
  • Water
  • Soft cloths

Steps to Remove the Mold and Mildew:

  1. Begin by dry-brushing the surface with a stiff, nylon brush. This will brush away most of the mold and mildew that has built up on the surface of the shoe.
  2. For suede and nubuck leathers, this is all that can be safely done. If further cleaning is needed, utilize a suede cleaner to remove any remaining mold and mildew. Follow the directions on the packaging for application instructions.
  3. For smooth leather shoes, as long as the leather remains unaffected, it is safe to continue on with further cleaning methods.
  4. Mix one part vinegar with one part water.
  5. Moisten a soft cloth with the mixture and use it to wipe the surface of the shoes clean.
  6. If the mold and mildew persist, spray the surface with Simple Green and wipe away with a clean, soft cloth.

Additional Tips and Ideas

  • Damp Rid can be purchased from most stores, including Wal-Mart. Simply place it in the closet to absorb extra moisture to help prevent the return of mold.
  • Silica gel can be purchased from craft stores. Simply place it in a small sachet and set in shoes when not in use to absorb excess moisture.
  • To prevent moisture from building up, rotate through the shoes so that each pair is only worn for one day and then has a chance to dry out.
  • Sunshine is a natural mold killer. If nothing else will kill the mold, set them in the sun for a day.

Comments

  1. Leather shoes says:

    Good post! After the mildew is removed, use some talcum powder on the insides and keep the shoes wrapped up in cloth to avoid the attack of mildew again.

  2. Michael says:

    Hi. After returning from a tour, I found all my shoes moldy in the cabinet. I washed and cleaned them, but when I wear them, a moldy smell emulates from them.
    How do I get rid of this smell? (Smooth leather shoes.)
    Mike

  3. Karen K. says:

    Vinegar will permanently RUIN leather! Never use it. One part rubbing alcohol and one part water, mixed and sprayed on will kill the mildew. Always follow up with a leather conditioner after your item has dried. My *best* results were in using tea tree oil; kills mildew and conditions the leather all in one step. Mike–this should fix your shoe problem permanently.

  4. Mike says:

    Hi, What about the inside of the shoe? If don’t get out all the mold, can this be bad for contracting fungus growths on your toenails and on your feet?

  5. Melanie says:

    Michael,
    You could try the trick used for smelly books:
    Cover the bottom of a storage container with baking soda, place a baking rack in the container, set the shoes on the rack and seal the container for a couple days. If you use a sealed container, this should also suffocate any potentially remaining mold. You could also place the shoes in a container with coffee beans or grounds for several days so they will emulate the smell of coffee instead.

    Source: Book Think – How to Remove Odors from Books

  6. Lorentz says:

    Thank you for the tips; my shoes are shiny now!

  7. Gina says:

    What is the method for using the tea tree oil?

  8. Bill says:

    White vinegar works for me. Had some boots that developed mildew/mold inside and out. I mopped the outside down with WV and filled the insides with WV, then drained it out. It killed the funky foot odor, too.

  9. Vic says:

    I have a pair of black leather boots that I took from the wardrobe after winter to wear. They had a white powder on them, which I cleaned off with a damp rag, and then I applied black boot polish. Within an hour, the white powder was back! I then cleaned it with antibacterial detergent and dried them for 24 hours – seemed ok. About an hour after wearing them, the powder comes back. Tried vinegar and rubbing alcohol. It cleans them initially, then once I wear them, it comes back. Thoughts?

  10. Melanie says:

    Vic,
    Mold and mildew are fungi, which reproduce from spores. In order for the fungus to return, there must be spores present. Therefore, to get rid of it for good, you have to get rid of all of the spores. Since you said that the mold returns about an hour after you return home, that leads me to think that the spores are located in the closet/hallway/area where you keep the shoes. The mold is attracted to the leather because it is moist (more moist than a dry wall anyway), so even if you don’t see it growing somewhere else, that doesn’t mean there aren’t spores present that could be kicked up into the air with the slight breeze of movement when you set the shoes down, etc.
    However, the spores could also be on the shoelaces or even inside the shoes (and then get tossed into the air and back onto the surface of the shoe when you remove your feet.) Clean the area where you keep the shoes, the inside of the shoes and the shoelaces (as well as the shoes again to remove the fresh spores that are visibly growing). You could just vacuum the areas where it is not growing (the wall, inner shoe, etc.) instead of using a cleaning solution, but it would be best if you use a vacuum that has a filter so that the spores aren’t sent back into the air in another part of the house later. If you would prefer to use a cleaning solution, the vinegar solution can be safely used on most surfaces (walls, fabrics, etc.), but test it on a hidden area first to check for any adverse reaction.
    You do need to make sure you are using an anti-fungal though. Antibacterial soap will not kill mold spores, and neither will rubbing alcohol. Vinegar is an anti-fungal, and it usually works to kill the mold, but there are some species of mold that can survive the vinegar. If you clean all areas with a vacuum and/or vinegar, and the mold still returns, it could be that you have one of the more rare species of mold that is not killed by vinegar. If that is the case, then you should use sunlight or a commercial mold cleaner that is safe for leather. There are other household products that are anti-fungals, such as peroxide, baking soda or tea tree oil. However, any of those products could damage the leather, so if you decide to try one, test it on a hidden spot first and use a wet cloth to wipe it off thoroughly afterward. Also, if you use the baking soda, consider wiping the leather with a vinegar solution afterwards (wipe off the baking soda solution thoroughly first) to bring the pH of the leather back down since leather is naturally acidic.

    Source: Mother Nature Network – Kill mold naturally: 5 eco-friendly ideas
    Source: Wise Geek – Why is Alcohol a Good Antiseptic
    Source: Leather Care, Repair and Restoration – The pH of Leather – Or, How to Ruin Leather by Following Bad Advice

  11. Roger says:

    Vic, I was in the army for six years and the white powder that bleeds through is salt from sweat. I had this issue all the time with my black boots. The only way I was able to remedy this was to soak them in warm water and 1 cup vinegar (to kill any mold) in the tub or a big sink to leach the salt out. Then, let them thoroughly dry. Treat them with saddle soap/leather conditioner and re-apply black polish.

  12. Esmeralda says:

    I’ve used Borox to remove any odors from fabric because it neutralizes odors. Works great! I love it! I also read it helps with getting rid of mold/mildew…

  13. David says:

    I wear a pair of leather boots quite regularly and have started to notice a dark collection of something resembling mold or mildew under my toenails. There seems to be none visible on the outside of the boots. Has anyone else encountered this problem and what’s the best way to clean the insides of the boots?

  14. Wayne says:

    I have an old baseball glove, in good condition except for a mildew smell from being stored in a damp basement. Any ideas for getting the smell out?

  15. Melanie says:

    Wayne,
    You can try the process mentioned earlier in the comments list of closing the glove in a box with baking soda to remove the odor. For your glove though, use something to prop the glove open, such as round tip toothpicks.
    Another idea could be to put some baking soda in a sock and put the sock in the glove.

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