They have a shelf life of about 2 to 3 days at room temperature if stored correctly. To maintain their freshness, it's essential to let them cool completely before storing them in an airtight container or resealable plastic bag. Store this container in a cool, dry place like a pantry or cupboard. If you need to keep them for an extended period, you can consider refrigerating the biscuits, although it's not necessary. Refrigeration can help prolong their freshness by 2-3 more days, but keep in mind that it may cause the biscuits to become slightly drier over time due to the lower humidity in the refrigerator.