Now the Silicone Kitchenware sought after by fashion people, the State Administration of Quality Supervision, Inspection and Quarantine recently issued a notice to remind the health of food products with silicone health risks: in the repeated use of silicone products in the process, found that its appearance or physical performance changes should be replaced. At the same time also pay attention to identify the plastic products posing as silicone.
Food silicone products with silicon - oxygen (Si-O) as the main chain structure, chemical stability, can be in the temperature range of -40 ℃ to 180 ℃ under the conditions of re-use. In recent years, food products with silicone products in various fields has been widely used, such as silicone shovel, silicone scraper, silicone mold, silicone steamer mats and so on. Although the silicone material is relatively safe, but in the purchase and use or there are some noteworthy places.
First of all, should observe whether the product smell. If the product has a pungent odor, you should be careful to buy. Followed by hand stretching products,Silicone Kitchenware observe whether the transparent stretch, showing a relatively high quality products, in use is not easy to produce small molecular material migration.
In the process of repeated use of silicone products, found that its appearance or physical properties change, such as swelling, discoloration, surface sticky, increased hardness, decreased flexibility, this time should be replaced. Due to change not only affect its performance, and more easily degraded to produce small molecules, small molecules easier to migrate to food, resulting in quality and safety risks.
Not only experts say, food grade silicone is safe, silica gel is not soluble in water and any solvent, non-toxic and tasteless, and the chemical stability. The most common home is the pressure cooker for sealing the gasket, is the food grade silicone. Easy to clean, not easy to breed microorganisms, but it is best not to use more than 3500 hours.
However, due to the more expensive silicon pad,Silicone Kitchenware do not rule out the illegal business with PVC (also known as PVC or plastic) to replace. Food grade silicone pad price is relatively high, like a few dollars on the shop to sell, it is possible to do plastic. Plastic itself is unstable, and in the processing process will use a similar plasticizer and other injection, in the case of high temperature, these additives easily volatile out of harm to human health.
Plastic and silica gel are different, the first choice to buy a reliable brand, you can also identify from the following aspects:
Color: steamer mat silicone material is generally selected edible grade silica gel, silicone is divided into industrial and food grade and recycling of plastic, consumers are too cheap to deal with products must be careful. Silicone color is natural white, not the kind of white,Silicone Kitchenware if the color is particularly bright white, you should be careful not plastic products, or add some kind of additives in order to whitening. If it is a color product is difficult to distinguish.
Taste: plastic silicone pad to get a very strong plastic taste, if you encounter such a situation, must not use. The real silicone material is no taste, in the low temperature -60 ℃, high temperature 180 ℃ use are safe.