In daily lives, housewives repeated use of plastic bags is nothing new. However, some experts pointed out that people should paid more attention on repeated use of plastic food packaging bag, especially the plastic bags with printing. Because they could make adverse effects on the human body.

The printing plastic bags must have lead. A lot of people enjoy the repeated use of plastic bags or placing the food in the plastic bag, which makes food contact lead directly.

The use of vinegar, one type of weak acid can filter out 0.1 mg of lead from the slice of bread size of the printing plastic bags, which is twice a day the amount of lead intake. The lead content is not sufficient to cause a clear threat to human health, but there is the potential adverse effects on the human body.