How to judge whether silicone kitchenware products contain unqualified additives?

How to judge whether silicone kitchenware products contain unqualified additives?
To judge whether silicone kitchenware products contain unqualified additives, you can start from the following aspects:
Check product certification: Qualified food-grade silicone kitchenware usually has relevant certification marks, such as the US Food and Drug Administration (FDA) certification, the EU CE certification, China's national standards for food contact materials and products (GB 4806.1-2016 and other series of standards) certification, etc. These certifications are a recognition of product safety. Products with these certifications are relatively less likely to contain unqualified additives. If the product does not have any relevant certification, or the certification mark is unclear and difficult to verify, then the product may be risky.
Smell: If you can smell a clear pungent odor after opening the package of newly purchased silicone kitchenware, it is likely to contain unqualified additives. Food-grade silicone itself has almost no odor. Even if there is a slight odor, it will quickly dissipate after being ventilated for a period of time. If the odor is still strong after being placed for a long time, you need to be vigilant about its safety.
Observe the color: Normal food-grade silicone has a uniform and natural color. If the color of silicone kitchenware is too bright and unnatural, or the color of the same batch of products varies greatly, it may be that too much pigment or other unqualified additives have been added. Especially for some brightly colored children's silicone tableware, pay more attention to the safety of its color. You can check the instructions on color additives in the product manual to find out whether edible pigments that meet the standards are used.
Perform a simple test: You can soak the silicone product in hot water for a period of time (such as 30 minutes to 1 hour), then smell the soaked water for any peculiar smell and observe whether the color of the water has changed. If the water has an odor or changes color, it means that the silicone product may have substances precipitated and there is a risk of containing unqualified additives. In addition, you can also wipe the surface of the silicone product with a white cloth or paper towel to see if there is any discoloration or other substances remaining.
Check the texture and elasticity: Touch the silicone product with your hands to feel its texture. High-quality food-grade silicone has a soft, uniform texture and good elasticity. If the silicone product has a rough texture, a grainy feel, or poor elasticity, and is easily deformed or broken, it may be that unqualified fillers or other additives have been added, affecting the quality of the silicone. Pull the silicone product and observe its ability to return to its original state. If it recovers slowly or cannot be fully restored, there may also be quality problems.
Understand the brand and price: Well-known brands usually pay more attention to quality control during the production process, follow strict production standards and specifications, and use qualified raw materials, so the product quality is relatively more guaranteed. Some silicone kitchenware with too low a price may use inferior raw materials to reduce costs, and it is more likely to contain unqualified additives. When purchasing, do not choose an unknown product just because it is cheap, but consider factors such as brand, quality and price.