1. Pull hard. This method is very simple. You can experiment when you see the product. Visual inspection is fine.
Operation method: Hold the silicone product by hand, focus on one place, and then pull firmly to both sides. What appears white is ordinary silicone, and what does not appear white is food-grade silicone.
2. Using two identical clips, flip the lid of the silicone cup and flip it back to simulate the effect of pulling.
The silicone cover A is clearly white. The silicone cover B is unchanged.
Therefore, it can now be determined that ordinary silicone is A and food-grade silicone is B. When you need to buy silicone products when shopping, you can easily pull it with your hands, so you can see it at a glance.
Another auxiliary method is: [smell] [smell] put your nose close to silicone products and smell it. If it pulls white and has a pungent smell, it can be concluded that it is ordinary silicone, not food-grade.
Finally, the silicone silicone needs to pay attention to two points.
1. The main method of identification is that the visual inspection is very simple and practical. When it is pulled up, it is whitish, and the pungent odor can be judged to be ordinary silicone, which does not meet the food grade standard.
2. Note that the silicone is not whitish when pulled up, but also has a slight odor. It is also food-grade, because it is produced during the production process of the manufacturer, does not affect the quality of the product, and can be eliminated by itself.
Silicone products are more and more common in our daily lives. Because silica gel is non-toxic and odorless, environmentally friendly and degradable, and its long use time and other characteristics are favored by us. But did you know that silicone is also divided into ordinary silicone and food-grade silicone? Ordinary silicone is generally used in some industrial products, while food-grade silicone is generally used in products that come into contact with our diet. For example, food-grade silicone should be widely used in baby pacifiers, baby straw cups, and some of our cup lids.
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