Try not to use plastic bags for cooked food. Cooked food packed in plastic bags often causes food deterioration. After eating, it is prone to vomiting, diarrhea and other food poisoning symptoms. In addition, the plastic bag itself will also release harmful lifting, which will accumulate in a sealed environment for a long time, and the concentration will increase with time, thus polluting the food in the bag, affecting human health, especially the health and development of children.
Do not use ultra-thin plastic bags. Ultra thin plastic bags are light in weight and thin in thickness, but have strong load-bearing capacity. This is because plastic bag manufacturers add plasticizers in the production process, which are extremely harmful to human health. National laws and regulations also prohibit manufacturers from producing and selling ultra-thin plastic bags.
Do not use plastic bags for alcoholic food. Alcoholic food and oily food will dissolve the lead in PVC plastic bags into food, and such plastic bags can not contain food with a temperature of more than 50 ℃. In addition, ordinary plastic bags cannot contain food and be heated in the microwave oven. Heating plastic bags is easy to produce carcinogens, which is very harmful to human health. Consumers should use a special microwave oven to heat the plastic film. Consumers should use special food packaging bags to contain food, especially plastic bags with special dark colors, which are likely to be reprocessed from recycled plastics. They should resolutely avoid using them for food packaging.
As long as we touch food, we can see the shadow of plastic packaging. The reason why Jinan plastic bag can become an indispensable part of the food system is that the plastic material has low density, light weight and can be transparent or opaque. It is easy to form and process. As long as the mold is changed, different kinds of containers can be obtained, which is easy to form mass production.
But it also has many shortcomings, such as: plastic is easy to deform at high temperature, low surface hardness and easy to wear; It will degrade and become brittle under light oxygen and hot oxygen; Poor conductivity, easy to generate static electricity accumulation and even pollution links. However, despite this, it still brings great convenience to our life.
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