In my life, I often come across a small bag of food desiccant with the words "inedible" written in the packaging bag of candy or cakes I bought. People usually throw it into the trash can; Occasionally or out of curiosity, tear it open and have a look. You often see a bag full of small round beads. Take one and knead it. It is hard and gives off a blue or white luster. This is the silica gel desiccant.

The main component of silica gel desiccant is silica, which is a highly active adsorption material. It is purified from natural minerals and processed into granules or beads. Silicon dioxide is a porous structure, which contains numerous holes and is spongy. Holes can absorb moisture, which is the reason why silica is widely used in the production of silica gel desiccant.

Mineral desiccant On the other hand, silica gel desiccant can effectively keep food dry by its powerful moisture absorption function, so as to make the best use of everything? Experts tell us that, in fact, silica gel desiccant has other wonderful uses. Chemical experts from Japan's Donghai Chemical Industry Institute pointed out that when planting flowers and trees, silica gel desiccant can be poured out and mixed into the soil, which can be used as fertilizer. In fact, silica gel fertilizer has long been sold in the market. Silicone, the main component of silica gel, has the effect of promoting plant photosynthesis. Silica gel fertilizer is especially effective in rice cultivation. In addition to being used as fertilizer, fresh flowers can be made into brightly colored dried flowers by putting them together with silica gel desiccant in a bag and putting them aside for a period of time. Of course, the weight of a small bag is definitely not enough, so we have to put more bags. By the way, after some kinds of food desiccants are used, their water absorption capacity will be restored after drying in the sun, so that they can be reused.