It is food desiccant, food commonly used desiccant composition is calcium oxide and silica gel, montmorillonite, calcium chloride, fiber.
Food desiccant is generally non-toxic, odorless, no contact corrosive, no environmental pollution. Food desiccant is to reduce the humidity in the food bag, to prevent food spoilage and corruption.
The control of humidity is closely related to the yield of the product, in terms of food, in the appropriate temperature and humidity, the bacteria and mold in the food will reproduce at an alarming rate, so that the food spoilage, resulting in moisture and color change.
Expanded information
Common desiccant types
1, lime desiccant
The main ingredient is calcium oxide, and its water-absorbing ability is realized through chemical reaction, so the water absorption is irreversible. No matter how high or low the humidity of the external environment is, it can keep the moisture absorption capacity greater than 35% of its own weight, and it is more suitable for low-temperature preservation, with excellent drying and moisture absorption effect, and the price is low.
2, silica gel desiccant
This desiccant is permeable sachet packaging of different varieties of silica gel, the main raw material silica gel is a high microporous structure of the water-containing silicon dioxide, non-toxic, tasteless, odorless, chemically stable, with a strong hygroscopic properties.
3, montmorillonite desiccant
Clay desiccant, the appearance of the shape of the gray ball, the most suitable for moisture absorption in the environment below 50 ℃. When the temperature is higher than 50℃, the degree of "water release" of clay is greater than the degree of "water absorption". However, the advantage of clay is that it is cheap.
4, fiber desiccant
Fiber desiccant is made of pure natural plant fibers through a special process. Among them, especially the laminated fiber desiccant tablets are convenient and practical and do not take up space.
Baidu Encyclopedia - Food Desiccant
Baidu Encyclopedia - Desiccant