I pulled out shoes I haven’t worn all winter and found white fuzzy patches growing on the leather. What is this?

7. Cleaning Products That Work (and Ones That Can Ruin Leather)
When cleaning leather shoes, it’s important to choose products carefully. White vinegar is effective against mold due to its mild acidity and is safe for leather when used correctly. Rubbing alcohol, diluted with water, can also kill mold spores.
Avoid using bleach or harsh chemicals, as they can discolor and damage leather. Hydrogen peroxide, while effective against mold, can have a bleaching effect. Always test any cleaning solution on a small, inconspicuous area first to ensure it doesn’t affect the leather’s color or finish.
8. When to Salvage Moldy Shoes—and When to Throw Them Out
The decision to salvage or discard moldy shoes depends on the extent of the mold infestation and the value of the shoes. If mold is widespread and has penetrated deep into the leather, it may be challenging to remove entirely, and the shoes might need to be discarded.
However, if the mold is limited to the surface and the shoes hold significant sentimental or monetary value, professional restoration services can be considered. They possess specialized tools and treatments for deep cleaning and leather restoration, offering a better chance of salvaging the footwear.
9. How to Prevent Mold From Returning to Your Footwear
Preventing mold recurrence involves maintaining a dry, clean environment for your shoes. Ensure shoes are thoroughly dried before storage, especially after use in wet conditions. Regularly clean and condition leather shoes to remove dirt and moisture-attracting residues.
Using shoe trees can help maintain shape and absorb moisture. Additionally, storing shoes with desiccant packets or in breathable fabric bags can reduce humidity levels and discourage mold growth.