Industry experts believe that plastic Jinan food bags can be used safely, but do not use color Jinan bags to package food. According to reports, the current plastic polyethylene, polypropylene, polyester, polystyrene used in food packaging, its health function qualified, used in food packaging is safe. But consumers can not distinguish between food packaging bags and non food packaging bags, so some unqualified packaging bags are used in food packaging, which seriously endanger people's health.

包装袋特别建议，用包装袋包装熟食、小吃和其他直接食品时，不要使用彩色包装袋。包装袋染色颜料具有很强的渗透性和挥发性，遇油、遇热会渗出。人们认为，有机染料，也含有芳香烃，对健康有一定的影响。此外，许多彩色的包装袋是由回收塑料制成的。由于再生塑料中含有许多杂质，制造商不得不添加颜料来遮盖它们。但是一些用再生塑料制成的包装袋也是白色的。

Packaging experts especially suggest that when using packaging bags to package cooked food, snacks and other direct food, do not use color packaging bags. Package dyeing pigment has strong permeability and volatility, and will seep out in case of oil and heat. It is believed that organic dyes, which also contain aromatic hydrocarbons, have certain effects on health. In addition, many colorful bags are made of recycled plastic. Because recycled plastics contain many impurities, manufacturers have to add pigments to cover them. But some bags made of recycled plastic are also white.

亦指出，并没有特别有用的方法来区分食物胶袋，但有一点是肯定的，非正规制造商生产并在街头摊档出售的塑胶袋，不应用作食物包装。此外，包装袋不能用来装食物，假设它们有一种特殊的气味。

Experts also pointed out that there is no particularly useful way to distinguish food plastic bags, but one thing is certain that plastic bags produced by informal manufacturers and sold in street stalls should not be used as food packaging. In addition, bags can not be used to hold food, assuming that they have a special smell.