Tips for preserving soybeans and preventing insects:1Sun dried: Make sure soybeans are completely dry before storing. Dampness is a breeding ground for pests and mold, so spread out soybeans to dry in the sun or wipe with a clean cloth to remove excess moisture. 2.Sealed container: Place the dried soybeans in an airtight container, such as a glass jar or plastic container, and make sure the lid is tightly closed. This blocks the entrance to pests and insects. 
3.Refrigerated Treasure: Place the sealed soybeans in the refrigerator. The low temperature environment can delay the aging process of soybeans and prevent the growth of pests. 4.Vacuum sealing: If possible, a vacuum packaging machine can be used to create an oxygen-free environment for soybeans. This prevents the growth of pests and mold. 5.Freeze Guard: Another way is to put the soybeans in the freezer compartment of the refrigerator. Freezing not only preserves soybeans for a long time, but also destroys possible eggs. 
6.Spice guards: Some spices, such as cloves, cinnamon, or star anise, have an insect repellent effect. Add these dried spices to the soybeans in the same container where they are stored to add an extra layer of protection. 7.Regular inspections: Even if the above measures are taken, the condition of soybeans should be checked regularly to prevent problems before they occur. Please note that the shelf life of soybeans is limited, even with proper preservation measures. In order to maintain the best quality and nutrition of soybeans, it is recommended to consume them within one year of purchase.