At present, the quality inspection of food packaging bags is becoming more and more strict, because food packaging bags are directly in contact with food packaging, which is closely related to our health, so how to use and choose food packaging bags correctly?

In addition to ordinary plastic bags, the unqualified rate of special food packaging bags is as high as 15%. Although unqualified lunch boxes and food packaging bags will not cause immediate harm to consumers like viruses and bacteria during use, they often lead to chronic poisoning, which is especially detrimental to the growth and development of children and adolescents. All qualified food packaging bags will bear the "QS" logo.

Packaged food must use standard food packaging bags, dark plastic bags are not allowed. If you cannot tell whether a disposable lunch box is qualified, use less food in disposable lunch boxes. Food packaging bags should use products made of polyethylene (PE). If it says it is made of PVC, try not to buy it. Food packaging bags produced by PE are generally poor in viscosity and transparency, and are easy to open by rubbing with hands. However, the food packaging bags made of PVC have better transparency and viscosity, and are not easy to unfold when rubbed by hand, and are easy to stick to hands.

After the food packaging bag produced by PE is ignited with fire, the flame is yellow, there is oil dripping, and there is no pungent smell. After the food packaging bag produced by PVC is ignited with fire, the flame is yellow-green, the smoke is relatively large, there is no oil dripping phenomenon, there is a pungent smell, and it will go out when it leaves the fire source.