Leave the latch open

The best way to store a cooler for winter is to clean it, dry it completely, and leave the lid unlatched or slightly propped open.

Mold needs moisture and still air. So scrub it with soap and warm water — baking soda if it smells — rinse everything out, including the drain plug, and dry it with a towel. Then leave the lid cracked instead of snapping it shut. If you latch it