Silica Gel 100pcs Dessicant For Food, Room, Kitchen Clothes, Bag, Shoes etc

Why can silica gel desiccant be used as food desiccant? Desiccant refers to a class of substances that can remove water molecules in wet substances (solid, liquid or gaseous), thereby reducing the humidity of the environment. The desiccant can maintain the humidity of the environment at a low level. In a dry environment, it can effectively control the growth of mold and other bacteria, slow down the oxidative rancidity process of the product, extend the shelf life of food, and improve economic benefits. Desiccants can be divided into chemical desiccants and physical desiccants according to their drying principles. Chemical desiccants are substances that can absorb moisture and are often accompanied by chemical reactions. Physical desiccants only absorb moisture without chemical reactions. The principle of physical desiccant mainly relies on adsorption to remove water molecules in wet substances, that is, the particles on the solid surface and water molecules in various gases, liquids, etc. find mutual attraction and adsorb them on the surface of solid substances. Desiccants are mostly porous and have a huge surface area. At present, the most widely used is silica gel desiccant, which belongs to physical adsorption. Silica gel itself is a neutral substance, and will not react with other substances except strong alkali and strong acid under certain conditions.