Ordinary silicone and food grade silicone products are becoming more and more common in our daily life. We have been using it for a long time due to its non-toxic, tasteless, environmentally friendly and biodegradable properties. But did you know that silicone is also divided into ordinary silicone and food grade silicone? Ordinary silica gel is usually used in some industrial products, while food grade silica gel is usually used in products that come into contact with our diet. For example, food-grade silicone is widely used in baby pacifiers, baby sippy cups and some of our cup LIDS.
Because food-grade silicone is of higher quality and price than regular silicone, some unscrupulous manufacturers are now mixing fish balls and using regular silicone in drinking cups and other products that come into contact with our diets. So how to tell! Which is ordinary silicone, which is food grade silicone? Today, silica gel manufacturers will teach you a simple way to distinguish: [pulling method]
This method is simple enough to experiment with when you see the product. Visual inspection is ok. How to operate: Hold the silicone product by hand, focus on one place, and then pull it to both sides with force. White is common silica gel, there is no food grade silica gel. 1. For the silica gel lid we just saw, we choose ordinary silica gel and food-grade silica gel, as shown in the picture below;
Using two identical clamps, flip the silicone lid back to simulate pulling. As shown below, you can see that the silicone cap A is clearly white. Silicone cap B has no change. Therefore, it can now be determined that ordinary silica gel is A, and food grade silica gel is B. When you need to buy silicone products for shopping, you can easily pull it by hand. At a glance. Another aid is: [sniff] [sniff] put your nose close to the silicone product and smell it. If it is pulled white and has a pungent smell, it can be concluded that it is common silicone and not food grade. Finally, there are two points to note. 1. The main method of identification is visual inspection, which is very simple and practical. It will turn white and have a pungent smell. It can be concluded that it is common silicone that does not meet food grade standards. 2. Please note that silicone will not turn white, but will have a slight odor. It is also food grade, because it is produced in the silicone manufacturer's production process, and does not affect the quality of the product.