For those who often eat breakfast outside, they will often see such a scene, whether it is boiling soup and hot brine, or fresh green onion pancakes, the bosses always Like to put a layer of “plastic bag” on the bowl and plate to separate the food from the bowl.
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In fact, it is not unreasonable to do so. Food is often stained with oil. If you want to clean it, it means an extra labor.
For the “high volume and low interest” price of breakfast stalls In terms of business model, a cheap plastic bag can bring them great convenience.
It saves time and effort, no need to wash frequently, Secondly, it is clean and hygienic. Compared with the cost-effectiveness of “disposable lunch boxes” and “oil paper bags”, it is not a star and a half higher.
But there are also many friends who are very resistant to this and feel that plastic Bags are “chemicals”. Compared with traditional porcelain bowls, they appear to be healthy on the surface, but they actually pose a great safety hazard to health.
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Especially when the noodles, soup, etc. When eating “food”, you can clearly smell a plastic odor, which can be reluctant to accept, or retching and hard to swallow, causing some unnecessary “conflicts”.
What’s more, eat breakfast by yourself The purpose of preparing tableware is to avoid this “plastic smell”, but it is also easy to attract strange eyes and be called “hypocritical”.
Especially in corporate groups, if the heart is not strong enough , I don’t even have the courage to bring my own cutlery.
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So are plastic bags really toxic after they are filled with hot food?
First of all, we must understand that plastic bags are made of ” polyethylene”, “polypropylene”, “polyvinyl chloride”, etc.
From a professional point of view, polyethylene does have There is a risk of precipitation of “toxic monomer ethylene”, but the possibility of precipitation of “food grade polyethylene” is extremely low.
The plastic bags spread earlier are generally ” Polypropylene” material, because it is more resistant to high temperature (160°-170°), even if it is heated by microwave, it will not produce peculiar smell.
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According to the high temperature of 100° of food, the precipitation in the “polypropylene plastic bag” “Toxic monomers” are almost absent.
But the premise must be “food grade”, ordinary polypropylene plastic bags There will still be precipitation of processing additives, and it is difficult to ensure safety.
Because there are some “three no small workshops”, in production In the process, in order to save costs, returning materials will be added to the new materials, thus increasing the uncertainty of safety.
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To sum up: “Polyethylene” plastic bags are poisonous Risk, “polypropylene” plastic bags are non-toxic, but must be food grade.
Polyethylene , referred to as PE, is a thermoplastic resin obtained by the polymerization of ethylene. The molecular formula is [C2H4]n, and the heat resistance of polyethylene is not high.
Polypropylene, referred to as PP, with the chemical formula (C3H6)n, is a colorless, odorless, non-toxic, translucent solid substance. Polypropylene is a thermoplastic synthetic resin with excellent properties, which is a colorless and translucent thermoplastic lightweight general-purpose plastic. At present, all PP can be regarded as food grade, and no harmful substances will be dissolved under normal and high temperature conditions.
But from an objective point of view: the so-called “substance” in “polypropylene” does not mean that it is a toxic chemical. It is best not to eat it, but it is okay to eat it.
The phenomenon of “plastic bags for breakfast” In the streets and alleys for many years, the so-called “existence is reasonable” is just “collective acquiescence” here.
As long as there are no major problems, most diners can still accepted.
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Some friends also joked: I have been reduced to eating roadside breakfast, life The conditions are here, where is there any concern about whether it is “toxic or not”?
This is not to say that eating a roadside breakfast is “dropping” Identity”, but the diners who come here, most of them want to be simple and quick, wipe their mouths after eating and leave, and start a busy day. How can there be time cost to study the “little things” that are not necessary.
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Since it is unavoidable, except for “bring your own tableware” ” and “refusing roadside stalls”, we can also learn to distinguish the quality of plastic bags:
- < li data-track="65">See:Food-grade plastic bags are more transparent, while general plastic bags are significantly less glossy;
- Touch:The surface of food-grade plastic bags is smooth, while general plastic bags are slightly rough;< /span>
- Smell: Food-grade plastic bags will not emit peculiar smell after heating, The odor of general plastic bags will be very obvious.
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Take a look next time you have breakfast.
Source: High Quality Living Home
Editor: Zhuhai Market Supervision Team
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