Silica gel desiccant is a physical adsorption desiccant rather than a chemical reaction moisture absorption desiccant, and silica gel is an FDA-approved desiccant material that can be directly in contact with food. Compared with other desiccant, silicone desiccant is better used in food moisture-proof. In addition to the above factors, the silica gel desiccant also has a strong hygroscopic ability, strong adsorption performance, the silica gel desiccant is all soaked in water, it will not melt. With, tasteless, non-corrosive characteristics, even if ingested will not be absorbed by the human body.