Never store it in the refrigerator. A refrigerator circulates cold air, which eliminates moisture and can prematurely dry breads and pastries. Place the cooled bread on a plate and cover it with plastic wrap, or store it in an airtight container. Store it on your counter for up to four days.
Place a paper towel on the bottom of an airtight storage container OR in an airtight bag. Then place the cooled bread on top. The paper towel will absorb any excess moisture that may seep over the next few days. Refrigerators circulate cold air, which will actually dry out banana bread, as well as other types of breads and pastries.
