Allow the chips to cool completely before storing them. Place the chips in an airtight container or a resealable plastic bag. Store the container or bag in a cool, dry place away from direct sunlight. If possible, use a container that is just the right size for the chips to prevent too much air from getting in and making them stale. Keep in mind that homemade chips don't have any preservatives, so they won't last as long as store-bought chips. It's best to consume them within a day or two for the best flavor and texture.