How to Clean Mold & Mildew Off Leather CoatsClean mold and mildew off your leather coat to keep it in good shape. Leather is expensive and if damaged, may be irreparable. Mold and mildew eat away at the leather, according to the University of Georgia
Family Consumer Science website. In addition, the mold and mildew give the coat a foul odor. Vinegar and rubbing alcohol kill the mold and mildew without causing damage to leather coats. Mold and mildew grow in moist, humid areas devoid of frequent light, like basements or closets. Keep your coat in a dry place to avoid mold growth.