Plastic grocery bags can be kept in the freezerPlastic bags will not produce toxic and harmful substances when frozen in the refrigerator. If it is a plastic bag for food, it is recommended to use a special food bag instead of an ordinary plastic bag. Because after freezing in the refrigerator, the plastic bag will stick tightly to the food for a long time, which is easy to cause food contamination. Commonly used food plastic bags are mostly made of polyethylene film, which is non-toxic and can be used to hold food. There is also a film made of polyvinyl chloride, which itself is non-toxic, but the additives added according to the use of the film are often harmful substances and have certain toxicity.Can plastic food bags be put in the refrigerator?There are a lot of chemical ingredients in plastic bags, such as polyvinyl chloride, lead stearate, phthalates, etc., which will affect our body.The fresh-keeping compartment of the refrigerator itself is a very low-temperature environment. In this case, plastic bags can harbor bacteria and microorganisms that can stick to food even when the bags are tied tightly.If a plastic bag is inserted, the plastic bag will quickly accumulate water vapor at low temperatures, which will accelerate food decay and cause new bacteria to appear. That’s why our fridge smells weird when we open it.Plastic bags cannot be placed in the freezer. The toughness of plastic bags is very low. When many ingredients are put in the refrigerator, there will be water. Water will cause the plastic bag and ingredients to stick together. .After the ingredients are frozen, you will find that the plastic bag cannot be removed. Do you dare to eat such food? If you really want to extend the shelf life of ingredients, it is recommended to use a special fresh-keeping box for the refrigerator.What are plastic bags made of ?The raw materials of plastic bags are polyethylene, polypropylene, polystyrene and other substances extracted from petroleum, among which polyethylene and polypropylene and other substances are polymer compounds, and plastic products are obtained after catalyzing them.The production process of plastic bags is respectively, printing, compounding, curing, slitting, bag making and quality control.Related article recommendation: Can plastic food bags be heated in a microwave oven?