Leftover biscuits can become stale or dry if not stored properly after baking. 1.) Follow these tips for the best method of storing biscuits: 2.) Allow the biscuits to cool completely before storing them. 3.) Place the biscuits in an airtight container or a resealable plastic bag. 4.) If you are stacking the biscuits, place a sheet of wax paper or parchment paper between each layer to prevent them from sticking together. 5.) Store the biscuits at room temperature in a cool, dry place away from direct sunlight. You can also freeze biscuits using our instructions in the article above.