What is the function of plastic wrap? The composition of food plastic wrap

In our lives, plastic wrap is economical and seems ordinary, but it has many magical uses. For example, if you have not finished eating the fruits, vegetables, meat and other ingredients you bought, you can wrap them with plastic wrap and put them in the refrigerator to reduce bacterial infection, prevent the food from spoiling easily, and protect the nutrients in the food from being lost. The following is a method about the role of plastic wrap, I hope it will be useful to you!

Contents of this article

1. What is the function of plastic wrap?

2. Composition of food wrap

3. The correct way to use plastic wrap

What is the function of plastic wrap

1. Fruit preservation: Plastic wrap may seem ordinary but it has many magical uses. For example, wrapping fruits and vegetables with plastic wrap and putting them in the refrigerator can reduce bacterial infection, prevent food from spoiling easily, and protect the loss of nutrients in the food.

2. Avoid getting dirty: Wrap the TV remote control with plastic wrap to prevent it from getting dirty. You can also unscrew the cap of the cosmetics bottle and apply a layer of plastic wrap to prevent the cosmetics from leaking. You can also put a layer of plastic wrap under the carpet that is easy to slide to increase the friction and make the carpet more fixed.

3. Anti-corrosion: Strong sealing and anti-corrosion are the advantages of plastic wrap. It can effectively isolate the wrapped items from bacteria and viruses in the air. Usually, plastic wrap can not only preserve food, but also has many functions such as slimming legs. However, it is not recommended to heat plastic wrap as it may produce toxic gases.

Composition of food wrap

Most of the cling film and commonly used plastic bags sold on the market are made of cling film masterbatches of different specifications of ethylene. According to the different types of ethylene masterbatches, cling film can be divided into three categories:

1. Polyethylene, referred to as PE, is a material mainly used for food packaging. The film used for the fruits and vegetables we usually buy, as well as the semi-finished products purchased from supermarkets, are all made of this material.

2. Polyvinyl chloride, referred to as PVC, can also be used for food packaging, but it has a certain impact on human safety.

3. Polyvinylidene chloride, referred to as PVDC, is mainly used for packaging of some cooked food, ham and other products.

The correct way to use plastic wrap

The method is: do not heat it in a microwave, do not wrap your body with plastic wrap to lose weight, but you can use plastic wrap to clean water cups or tableware.

PVC cling film cannot be used to store greasy food or be heated in a microwave oven. PE cling film can be used to store greasy food, but if you want to heat it, you must poke a few small holes in it with a toothpick to prevent it from breaking.

Do not wrap your body with plastic wrap to lose weight. Some people have heard that wrapping your body with plastic wrap can effectively lose weight, but in fact this method is not correct, not advisable, and even harmful to the human body.

After 24 hours, 100g of leek wrapped in plastic wrap had 1.33mg more vitamin C than without wrapping. And after 24 hours, rape, lettuce, apples and pears wrapped in plastic wrap had 1.92mg more vitamin E.

100 grams of radish wrapped in plastic wrap and stored for one day, its vitamin C content decreased by 3.4 mg. And the amount of vitamin C lost by wrapping cucumber in plastic wrap and storing for one day and one night is equivalent to that of 5 apples.

Wipe the glass with clean plastic wrap to remove scale and make the glass as bright as new. Try using plastic wrap to remove oil stains on lunch boxes that cannot be washed off.