Plastic products are indispensable in daily life, but i […]
Plastic products are indispensable in daily life, but improper use can also pose health risks. Recently, a study conducted by the National Institute of Child Health and Development and the Plastics Pollution Alliance found that if women reduce contact with plastics, the harmful chemicals in the body will be reduced accordingly. For the selection of safe plastic products, Ji Junhui, director of the Engineering Plastics Engineering Research Center of the Institute of Physics and Chemistry of the Chinese Academy of Sciences, gave some suggestions: Many plastic products are numbered. For example, the bottom of the container is labeled with polyester. To avoid high temperature, common Coke bottles; 2 and 4 are polyethylene, can be loaded with edible oil marked 2; standard 3 is polyvinyl chloride, there is a safety risk, try not to contact food.
Polystyrene marked 6 is not exposed to heat; plastics marked 2, 4, and 5 are safer; those marked 7 are of other types and may be safe or unsafe and should be used with caution. The commonly used plastic bags are commonly used in two kinds of materials. One is polyvinyl chloride. The plastic bag of this material should not touch the food as much as possible. It feels sticky and sticky, and the sound is small and stuffy with the hand shake. The second is polyethylene. The plastic bag is more lubricious and tough to the touch. It is brittle when it is shaken. It has high safety when it comes into contact with various foods, but it is not suitable for high temperature heating, such as hot water and microwave ovens. Therefore, do not use a plastic bag to wrap food in a microwave oven. Second, when buying plastic containers and other products, smell whether there is a burnt smell and see if there is a black spot. If it is, it can be confirmed that it is made of recycled waste, especially food contact, etc., which is used in contact with food or human body. For plastic bags, the general large enterprises will have strict standards, will not use scrap, and the quality is reliable and the safety is good.
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