Will pinto beans spoil if left out over night?

Pinto beans are a variety of common bean, a type of legume. Legumes are a good source of protein, but they can also spoil if they are not stored properly. If pinto beans are left out overnight, they may begin to spoil, especially if they are in a warm or humid environment. Spoilage can cause the beans to become mushy, discolored, and develop an unpleasant odor and flavor. It is generally not recommended to leave pinto beans or any other type of legume out overnight, and they should be stored in a cool, dry place to ensure freshness and quality.