Nowadays, people have a strong concept of environmental protection.More choice to go to work and go out on foot, bicycles are buses, including

/span>All aspects of food safety have begun to pay attention, including the way to buy food in bags, which is a good phenomenon. But there are others who are plastic bag “fans”, meaning that in their eyes, Plastic bags are the cleanest and most convenient. Are they right?

Not only that, many people have one of the most common concerns about the use of “plastic bags” The idea is that plastic bags can be used instead of fresh-keeping bags to keep food fresh, and then placed in the refrigerator, it can also be used for fresh-keeping, is this correct? Today we will introduce the problem of plastic bags to you, “plastic bag” can it really replace ziplock bags?

Why plastic bags Can’t replace the fresh-keeping bag? What is the difference between them?

First of all, the fresh-keeping bag is made of three materials: polyethylene (PE), polyvinyl chloride (PVC) and There is polyvinylidene chloride (PVDC). The first the fresh-keeping bags made of the two materials are relatively safe, and usually used for packaging Fruits and vegetables, and thenThe third is the packaging that is mostly used for meat, such as ham or cooked food.

Although pvc is used in the packaging of fruits and vegetables, it is also unavoidable for Human Hazard. Because this kind of plastic wrap is not breathable enough, so it is easy to cause food to not be in it. Adequate oxygen exposure,especially when the plastic bag is tied tightly,rots away quickly. Regular and qualified fresh-keeping bags have a good ventilation effect, which can maintain the freshness of fruits and vegetables.

But the plastic bag is different from the fresh-keeping bag, its breathing effect is very poor, some That is, there is no ventilation effect directly. If the plastic bag is tied tightly, the vegetables will not have enough oxygen, and the alcohol from the skinrespiration will remain in the bag and spoil.

It can be seen that there is still a difference between “plastic bags” and “preservation bags”, otherwise why would regular supermarkets give you Food bags are all fresh-keeping bags, so it is best to use fresh-keeping bags for food in the refrigerator. Fresh-keeping bags are good, but are plastic bags really harmful to the human body?

I heard that plastic bags are poisonous and cause cancer. Is this true? What?

When plastic bags are made, they willadd something called a plasticizer , this plasticizer just makes the plastic bag softer,and then better for processing, meaning It is said that the softer the plastic bag is, the more plasticizer is in it.

If you use plastic bags that contain a lot of plasticizers to hold food, it’s actually better if the food is not too hot, if The food is hotter,like using a plastic bagfor freshly baked buns or pot stickers Causesplasticizer to migrate from the plastic bag to the food. It also causes plasticizers to enter our body through food, especially when encounteringoil or a high temperature environment of 100 degrees, So plastic bags It is better not to use it for food with higher temperature, especially in summer. Long-term inattention may cause cancer or cardiovascular disease, etc., so it’s not shocking that plastic bags cause cancer.

Although plastic bags can cause cancer, it is relatively safe to use plastic bags correctly. For the sake of your health, you should take a look. Get out paper and pen and learn to learn.

How to use plastic bags harmlessly, remember these points

The first choice is not to use plastic bags for cooked food or snacks, that is,It is best not to touch it directly. Also, don’t use colored bags, because generallycolored bags are recycled, which means they contain Colored bags are a safety and health hazard.

Li Shuguang, a professor at the School of Health, Fudan University, said that the plasticizer contained in the plastic bag, It is not a firm bond, that is to say, the plasticizer will migrate and then cause food contamination. It is best not to use it to hold food, especially rice, and many people are rare in the bowl Cover with a plastic bag, and this practice can now be corrected directly. Use eco-friendly plastic bags that not only hold food but also hold hot food. But remember that plastic items, whether environmentally friendly or not, should not be heated in pots or microwaves, as there is a greater or lesser risk.

FinallyDon’t buy seafood in black plastic bags, black plastic bags are generally made of recycled packaging bags, which also add a lot of pigments.If they are used for seafood, It will cause the harmful substances contained in the bag to penetrate into the seafood, which may be harmful to the body when eaten by the human body.

Small plastic bags have such great knowledge. From the above, we can see that plastic bags are really harmful. In addition to plastic bags, there are also some plastic products, which also need to be used correctly.

About the wrong use of plastic products, you don’t have to take it all

Plastic bottles are now made one by one, and they are more and more textured. Many people will re-use plastic bottles. Although it is economical, it is harmful to the human body for a long time. If we look at the plastic bottle, we will find that there is a number “1” under the plastic bottle, “1” represents this The material used in the plastic bottle is PET, It is what we said above that it cannot be used for heating The material of the food, If the water is kept at 70° upward, it is harmful to the human body, if it is so for a long time, it may causing cancer. The health of life is still more important than the mere plastic bottles.Don’t treat plastic bottles as “baby” anymore.

Some people like to pickle vegetables in plastic bottles, probably because they feel that the plastic bottles are light in weight, and then it is convenient to observe the state of the vegetables. Then I will buy bottled mineral water and drink it to pickle vegetables. First of all, let’s not talk about the harm of reusing plastic products. Pickles will use a lot of salt, and then the sodium chloride in the salt will react with the plastic to produce toxic substances. Use by the human body threatens human health.

In summary, the above is the popularization of health knowledge about plastic bags. Although plastic bags are convenient for our lives, they are in itself. would be a threat to our health. And because it is not easy to be decomposed, it is best to use environmentally friendly plastic bags. You can use special cloth bags for grocery shopping, which is beautiful and will not be handicapped. It is a good choice. It’s best to buy as much food as you want, and keep it in the refrigerator and it will get old.

References:

1. ” Putting the plastic bags in the refrigerator is equal to chronic suicide? You can see it clearly” – Popular Science China 2017-08-16
2. “Shock! These plastic bags are poisonous !Can cause cancer, but also”——Zhaoqing released 2017-0