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It is worth noting that ordinary grade silicone is generally used in some industrial products, while food grade silicone is generally used in products that come into contact with our diet. Food-grade silica gel is non-toxic, tasteless, insoluble in water and any solvent, and is a highly active green product. Therefore, in the daily purchase of silicone products, we must learn to distinguish between ordinary grade silicone and food grade silicone.