Silica gel desiccant can be reused in two ways:
1. Explode in the sun (but the water can't be completely exposed).
2, silica gel desiccant (moisture-proof beads) can be reused after baking at high temperature. It can be baked at 80-120 degrees Celsius, and the adsorbed water can be baked for repeated use. However, it should be noted that the inner layer of the desiccant bag is heat-sealed and has a temperature resistance of 80-120 degrees, so the bag needs to be torn off and then baked (most of the wrapping paper cannot withstand high temperatures, so it should be under low temperature and long time. Drying, and the cost of packaging materials that can be directly baked is high and does not meet economic benefits.)