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

To prevent a ‘cold-season mold bloom,’ it’s essential to ensure shoes are completely dry before storage and kept in a well-ventilated, climate-controlled area. Using desiccants like silica gel packets can help absorb excess moisture and prevent mold growth.
5. Are These Fuzzy Patches Dangerous to Your Health?
While mold on shoes might seem like a minor inconvenience, it can pose health risks, especially for individuals with allergies, asthma, or weakened immune systems. Mold spores can become airborne, leading to respiratory issues, skin irritation, or allergic reactions upon contact.
It’s important to handle moldy items carefully. Wearing gloves and a mask while cleaning can help minimize exposure to mold spores. If you experience symptoms like sneezing, coughing, or skin rashes after handling moldy shoes, it’s advisable to consult a healthcare professional.
6. Step-by-Step: Safely Removing Mold From Leather Shoes
To safely remove mold from leather shoes, start by taking them outside to prevent spreading spores indoors. Brush off loose mold with a soft-bristled brush. Then, prepare a cleaning solution of equal parts water and white vinegar, a natural fungicide.
Gently wipe the affected areas with a cloth dampened in the solution. Avoid soaking the leather, as excessive moisture can damage it. After cleaning, allow the shoes to air dry in a well-ventilated area, away from direct sunlight or heat sources. Once dry, apply a leather conditioner to restore moisture and flexibility to the leather.
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.