01 Observe the color
First of all, do not buy foods with illegible printing on the outer packaging; secondly, rub the clearly printed packaging bags with your hands. If you find that it is easy to decolor, it means that its quality and materials are not good, and there are unsafe factors, so you can't buy it.
02 smell
Do not buy food packaging bags with pungent and pungent taste.
03 Use white plastic bags to package food
Although it is recommended to use other environmentally friendly packaging instead of plastic, the editor recommends that you try not to use red and black plastic bags when you need to use it. Because colored plastic bags may be produced using recycled materials, or natural materials and their crude products that have not been decontaminated, they are prone to failure, deterioration, mildew, or contamination, which will contaminate food.
04 Focus on food grade paper packaging
Paper packaging is the trend of future packaging. Recycled paper is the same as colored plastic and should not be used in the food industry. Ordinary paper will add additives for some reasons, so be sure to look for food grade when buying food paper packaging.
How can "safety on the tip of the tongue" be sloppy? For our health, please buy food packaging bags produced by regular manufacturers and approved by relevant departments.