Silica gel nz is dried by physical adsorption of water. Humidity control is closely related to the yield of the product, in the case of food, at the appropriate temperature and humidity, bacteria and mold in the food will reproduce at an alarming rate, so that food spoilage, resulting in damp and color change. Electronic products will also cause metal oxidation due to high humidity, undesirable. The use of food desiccant is to avoid excess water caused by the occurrence of defective products. Our desiccant is packed in a hygroscopic bag. The main raw material silica gel nz is a kind of water-containing silica with a high microporous structure. It is non-toxic, tasteless and odorless with stable chemical properties and strong hygroscopic performance. Therefore, it is widely used in the storage and transportation of instruments, equipments and leather, bags, shoes, textiles, food, medicine and so on to control the relative humidity of the environment, to prevent goods from damp, mildew and rust.