Allow the sprouts to dry under a fan for approximately 2 to 4 hours. This timeframe should provide enough air circulation to remove excess moisture from the sprouts and facilitate drying. It's important to note that sprouts are delicate and can become over-dried or wilted if left under the fan for too long. Therefore, it's advisable to periodically check the sprouts while drying to ensure they reach the desired dryness level without becoming excessively dehydrated. After the sprouts have been dried, you can store them in an airtight container in the refrigerator. This will help maintain their freshness and extend their shelf life.