Silica gel is non-toxic, tasteless, environment-friendly, degradable, long-term use and other characteristics by our favorite. But did you know that silica gel can also be divided into ordinary silica gel and food grade silica gel? Ordinary silica gel is generally used in some industrial products, while food grade silica gel is generally used in products in contact with our diet. So how to distinguish ordinary silica gel and food grade silica gel? Pingu rubber tells you the way:
Food grade silicone products
Pulling method:
Hold the silicone product in your hand, focus on one place, and then pull on both sides. White is common silica gel, no white is food grade silica gel.
1. The main identification methods are visual inspection, which is very simple and practical. It is white and pungent when pulled up. It can be concluded that it is ordinary silica gel, which does not meet the food grade standard.
2. Note that the silica gel is not white, but it also has a slight smell. It is also food grade, because it is produced in the production process of the manufacturer, does not affect the product quality, and can be eliminated by itself.
Smell:
Put your nose close to the silicone product and smell it. If it is white and pungent, it can be concluded that it is ordinary silica gel, not food grade.
Food grade silica gel is vulcanized by platinum with high elasticity, transparency and tear strength. Ordinary silica gel has a taste and is opaque. Food grade silica gel meets RoHS and other environmental protection requirements. Bechtel silica gel products have passed the product certification of FDA and EU lfgb food inspection. They have no pungent taste and can be in contact with food related things. Ordinary silica gel can't. of course, ordinary silica gel and food grade silica gel are different. Food grade silica gel should have FDA and other relevant certification and can be in direct contact with food. Many ordinary silica gel are not food grade certification.
