Is all food grade silicone white?

Silica gel is a kind of high activity adsorption material, is an amorphous substance. Silica is the main into silica, chemical stability, do not burn. Because silica gel non-toxic tasteless, environmental protection, degradable, and high temperature resistance and other characteristics, now on the market silica gel products are more and more favored by people, but many consumers are always confused about what material is food grade silica gel, which material is ordinary silica gel. Is all food grade silicone white? To understand this problem, first of all, we need to know that silicone is food grade silicone, which is ordinary silicone. Here's a brief overview from Kamet:
Ordinary silica gel is used for processing industrial products, and food grade silica gel is used for processing some products closely related to life, such as silica gel kitchenware a series of products.
What is the difference between food grade silica gel and ordinary silica gel:
Food grade silicone is platinum vulcanized, high elasticity, high transparency, high tear strength. Ordinary silicone is smelly and opaque. Food grade silica gel is in line with ROHS and other environmental requirements, food grade silica gel is to have FDA and other relevant certification, can directly contact with food. Many ordinary silicone is not food grade certification.
The cost and price of ordinary rubber material are low, the quality of the product is medium, and the phenomenon of white will appear in stretching, and the tearing effect is general. The gas phase glue has been improved on the basis of the ordinary glue. The raw material is more high-quality, stretching without whitening phenomenon, the service life is better, the field of application is more extensive, the density and purity of the raw material is higher, and the price is relatively expensive.
The raw material of food-grade silica gel is transparent, and its color can be adjusted by food-grade masterbatch. The main requirements for food-grade masterbatch are that it should not contain heavy metals, halogen and VOC, and it should not contain carcinogens. Therefore, food-grade silica gel with color is generally safe.