What is the price of plastic wrap? Some knowledge points of plastic wrap

What is the price of cling film? Cling film is usually used to keep food at home fresh. There are a variety of foods every day. If you can't finish it, use plastic wrap to keep it fresh. However, not all foods can be covered with plastic wrap.
What is the price of cling film? Consumers should choose well-packaged products when buying cling film products in supermarkets, and the packaging bags should not be damaged. Pay attention to the production date and shelf life, try to choose products within the shelf life to prevent the growth of bacteria and mold; pay attention to the product label, and try to buy plastic wrap without plasticizer; the product should be marked with implementation standards to prove that it meets the standards Require.

What is the price of cling film? Experiments have shown that after 24 hours, the vitamin C content of 100 grams of leek wrapped in cling film is 1.33 mg higher than that of unwrapped leek, and the leaves of rapeseed and lettuce are 1.92 mg higher. However, the results of some vegetable experiments are quite different. After storing 100 grams of radish wrapped in plastic wrap for one day, its vitamin C content was reduced by 3.4 mg, and its legumes were reduced by 3.8 mg. After a cucumber is stored for a day and a night, its vitamin C loss is equivalent to 5 apples.

What is the price of cling film? Cooked food, hot food and oily food, especially meat, should not be packaged and stored in cling film. Experts point out that after these foods come into contact with plastic wrap, it is easy to volatilize the chemical components contained in the material and dissolve into the food, which is harmful to health. Most of the cling film sold on the market, like plastic bags, are made of ethylene masterbatch as raw material. Some plastic wrap materials are polyethylene (PE for short), which does not contain plasticizers and is relatively safe to use. Some materials are polyvinyl chloride (PVC), and raw materials such as stabilizers, lubricants, and processing aids are often added, which are harmful to the human body. Therefore, we must choose carefully.

What is the price of cling film? Watermelon preserved with cling film deteriorates faster than watermelon without cling film. Because before covering the watermelon with plastic wrap, there will be some bacteria and microorganisms on the surface of the watermelon. If it is covered with plastic wrap, the air permeability and water permeability of the watermelon surface will decrease, and the temperature drop inside the watermelon will slow down, resulting in these microorganisms or bacteria on the surface. The surface of watermelon multiplies faster, especially the food is prone to spoilage after anaerobic reaction. Therefore, do not use plastic wrap when storing uneaten watermelons.

What is the price of cling film? According to relevant experimental results, after 100 grams of radishes wrapped in cling film are stored in a natural environment for one day, the content of vitamin C in radishes is reduced by 3.4 mg, legumes are reduced by 3.8 mg, and cucumbers are stored for one day and night. Later, the loss of vitamin C is equivalent to 5 apples, so radishes, cucumbers and beans are also very unsuitable for preservation in plastic wrap.

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