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Chapter 143 Plastic food bags should not be used repeatedly

It is commonplace to re-use plastic bags to package food in daily life. In fact, this practice is not good for health.

Plastic bags for packaging food are usually printed with text or patterns on the outward side.Some foreign scholars have tested the printing part of 17 different types of plastic bread bags, and the average lead content in each bag is 26 mg.If a weak acid solution is used for extraction treatment, it can be detected in less than 10 minutes, and about 6% of the lead has been transferred to the weak acid solution.When people turn over the food packaging bag and package the food again, the printed words or patterns will directly contact the food and contaminate the food.If the food contains weak acidity, the melting rate of lead will double. Although the lead enters the human body, it may not necessarily pose an obvious threat to human health in a short time, but lead is a heavy metal that is difficult to excrete from the body. Lead products, lead will accumulate in the body, reaching a certain amount will cause irreparable damage to the digestive system, nervous system and endocrine system.Therefore, relevant experts suggest that lead printing should be prohibited for patterns on food packaging bags.As a precautionary measure for people, the used plastic food bags should not be reused.

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The colorant used in black plastic bags is carbon black for food packaging, which usually contains an impurity called benzoflower.Benzoflower is a strong carcinogen, so in daily life, try not to use black plastic bags.

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