Plastic bags are a "good helper" in daily life. They are flexible, lightweight and cheap. They are commonly used when buying groceries. Generally speaking, after most families buy vegetables, they put the plastic bags and vegetables in the refrigerator for storage.
However, this behavior has attracted widespread controversy. Many people feel that if plastic bags, which contain harmful substances, are kept in the refrigerator with food for a long time, the "toxins" will enter the dishes. Some people even think that they are used for Placing vegetable bags in the refrigerator can cause cancer, making it difficult to distinguish between genuine and fake.
Are there any "toxins" in the plastic bags that are consumed daily?
Judging from the ingredients of the plastic bags, there are indeed some. In order to make the plastic bags molded, three ingredients are often added to them, namely benzo Pyrene, plasticizer and phthalates.
benzopyrene is a first-level carcinogen recognized by the World Health Organization ; and the plasticizer is eaten in large quantities in plastic bags, and its precipitation also poses toxic hazards; and if phthalate is accidentally eaten by people, it may It will affect the secretion of insulin and increase the risk of metabolic symptoms such as diabetes .
From this point of view, plastic bags are "extremely toxic" and cannot be used?
In fact, it is not so exaggerated. These three toxins in plastic bags, if they want to cause harm to the human body, the prerequisite is that they must To eat it in the stomach, as long as it is used carefully in daily life, it will not have any impact on health.
Not only that, The World Health Organization once clearly proposed in the "9 Cancer Prevention Suggestions" that use non-toxic polyethylene to replace the production of ordinary plastic bags . For now, most plastics The bag has been replaced with non-toxic material, so you can use it with confidence.
As for how to distinguish , you can listen to the sound: The shaking sound of plastic bags made of plasticizer is relatively dull , while the shaking sound of polyethylene plastic bags is clear and loud.. You can use this to tell the difference, so try to use non-toxic plastic bags.
Getting back to the topic, putting plastic bags in the refrigerator together with food is something that many families do, so will such behavior cause cancer?
Will putting plastic bags in the refrigerator with vegetables cause cancer? The experimental results tell us Your
Huashang Evening News once conducted an experiment with the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. They randomly purchased plastic bags made of polyethylene or plasticizers, a total of 5 kinds of , and then stored them in the refrigerator together with the purchased vegetables.
After taking it out for about a week, laboratory researchers monitored the content of toxic substances in the vegetables. The results showed that whether it was a plastic bag made of polyethylene or a plastic bag made of plasticizer agent, there was no In the case of carcinogen transfer, the error range is .01mg, which is far lower than the food contamination standard.
It can be seen that even if plastic bags are put into the refrigerator together with vegetables, there is no hidden danger of cancer. Ma Zhi, director of the Shanghai Food Safety Commission, explained: Toxic substances in plastic bags are only threatening when is precipitated. The organizational structure of plastic bags is very stable and will only deform and precipitate under high temperatures.
In other words, as long as we do not place food and plastic bags in a high temperature environment, there is no risk in just putting it in the refrigerator. Please feel free to eat it in your daily life. In contrast, there are some key things to pay attention to when using plastic bags to store refrigerator food.
Put plastic bags and food in the refrigerator. 2 points to keep in mind
â‘ Make sure the inside of the plastic bag is dry
Although plastic bags are placed in the refrigerator with food, there is no possibility of causing cancer. However, because of the high density of plastic bags, the environment inside is isolated from the outside environment. If the internal humidity is high, bacteria will grow faster even if they are placed in the refrigerator.
Therefore, when using plastic bags for storage, be sure to keep the inside as dry as possible before loading food, which can effectively extend the storage time of food.
② Do not use plastic bags to pack irritating foods
As we mentioned above, toxic substances in plastic bags will only pose a threat to health when they are precipitated.
In addition to precipitation caused by high temperatures, irritating foods, such as vinegar, various pickles, sauerkraut, etc., will also cause corrosion to the inner wall of the plastic bag during storage, and there may be a risk of toxic substances leaching out. Therefore , plastic bags can be used to store ordinary food as much as possible. It is recommended to store irritating foods in bowls or glass jars.
It can be seen that as long as plastic bags are used under normal circumstances, they will not pose a threat to health, and placing them in the refrigerator is not a big problem. However, you should try to avoid irritating substances and high-temperature environments, minimize the hidden dangers of toxic substances, and pay attention to the details of life, so that your health can be better protected.
