When storing potatoes, remember 3 things: dark, dry, and cool. Here are some important storage tips. Store potatoes in a dark area. Place potatoes in a dark paper bag which allows air to reach the potatoes. Do not use plastic bags. Store potatoes in a dry place. Humidity and moisture promotes rotting and mold formation. Store potatoes away from fruits. Store potatoes in a cool, but not freezing, area. Don't drop potatoes. Dropping them causes bruises.