Which is safer, a paper lunch box or a plastic lunch box?

Which is safer, a paper lunch box or a plastic lunch box?

Which is safer, a paper lunch box or a plastic lunch box? Health is the biggest factor that affects a person. Because health is the foundation of life, the most important thing for us is health. Don't neglect our health. Without health, there is nothing. Which of the following shared paper lunch boxes and plastic lunch boxes is safe?

Which is safer, a paper lunch box or a plastic lunch box? 1 Paper bowls are characterized by safety, hygiene, portability and convenience. Can be used in public places, restaurants and restaurants, and is a disposable product. Qualified disposable paper bowls produced by regular manufacturers are naturally harmless, but some paper bowls with poor quality cannot be avoided in the market. The problem of unqualified disposable paper bowls is mainly in hygiene and performance indicators.

So which is safer, a disposable paper bowl or a plastic bowl?

In fact, as long as it is a qualified product that meets the relevant national standards, it is safe for normal use.

1. Is disposable paper bowl harmful?

Not all disposable paper bowls are harmful, only those that do not meet the national standards may be harmful to human body. Many restaurants have disposable paper cups, paper bowls and other tableware, and many customers think it should be at least more hygienic than plastic cups and bowls. In fact, some paper tableware is unsafe and unsanitary for two main reasons:

1, health indicators are unqualified.

The unqualified hygienic index is mainly the unqualified evaporation residue. Such as calcium carbonate, talcum powder, paraffin wax, liquid additives and the like. They are all illegally added in the production process of disposable paper bowls. If users use this paper tableware for a long time, a large number of unknown substances may enter the human body, causing harm to the body, which may reduce human immunity, lead to gallstones, kidney calculi, constipation, blood system diseases and other chronic diseases, and even cause cancer.

The unqualified sanitary indicators also indicate that the decoloration test is not up to standard. There are clear requirements for pattern printing in national standards. Take a paper cup as an example, there should be no printed patterns within the range of 15 mm from the mouth of the cup and 10 mm from the bottom of the cup. In order to reduce the production cost, some disposable paper bowl manufacturers use unqualified ink for pattern printing. When consumers use paper cups, the colored parts of paper cups will come into contact with the sweat on their lips or hands. Unqualified ink often contains benzene and toluene, which will be harmful to human health.

2, the use performance is unqualified

The unqualified items of disposable paper bowls mainly include leakage performance, sensory index and compressive strength. Han pointed out that the unqualified leakage performance and compressive strength will directly affect the use of consumers; The problem of unqualified sensory indicators is that the distance between printing and cup mouth and cup bottom does not meet the standard requirements, which may lead consumers to directly contact the printing parts and ingest substances harmful to human body during use.

2. Which is safer, a disposable paper bowl or a plastic bowl?

The standards of disposable paper bowls and plastic bowls are different. If they don't meet the standards, there will be potential safety hazards, so we can't absolutely say which one is safe.

The inner wall of disposable paper bowls commonly used in the market is coated paper, that is, the inner polyethylene plastic film. Now many paper cups use coated paper instead of paraffin. However, without the "protection" of paraffin wax, the outer wall of the cup may be moldy after being wetted, and the inner wall of the nested cup will also be contaminated by mold. As for this kind of plastic film, if it is not a food-grade material, it will decompose harmful substances at high temperature.

Now commonly used disposable plastic bowl materials are PP and PS. PP is resistant to high temperature and can be used in microwave. Generally, the locked crisper on the market is made of PP .. PS is not resistant to high temperature, so it is often used for cold drink packaging. In the manufacturing process, disposable plastic bowls are more sanitary than paper bowls, because the manufacturing process of plastic is simple, and it is packaged immediately after molding and cooling at high temperature. Disposable paper bowls are printed, paper-cut, pasted, rolled and curled, which are easy to be polluted during the period.

Therefore, whether it is a paper bowl or a plastic bowl, it must meet the corresponding standards before it can be used with confidence.

Which is safer, a paper lunch box or a plastic lunch box? 2 glass crisper boxes.

There are three kinds of glass fresh-keeping boxes, which are lunch boxes made of borosilicate glass, microcrystalline glass and titanium oxide crystal glass. They can allow microwave penetration, and will not be deformed or have harmful components precipitated due to high temperature, and generally can withstand temperatures of 500℃~ 1000℃.

But some inferior glass containers are not suitable for microwave heating. Before buying, see if the appearance is marked with the words "microwave heating is available".

Ceramic crisper

There are also two kinds of ceramic lunch boxes, one is heat-resistant ceramics and the other is ordinary ceramics. Heat-resistant ceramics can be heated by microwave oven, but ordinary ceramics are not so good.

If you like ceramic containers decorated with gold and silver, such as Phnom Penh bowls, they are not suitable for microwave heating and can only be filled with hot rice that has just been cooked. Because gold or bowls in Phnom Penh are heated by microwave, it will produce electric sparks, which will not only damage the microwave oven, but also have a bad heating effect, so it is not suitable for microwave heating.

Plastic crisper

Compared with glass lunch boxes, plastic fresh-keeping boxes have the advantages of light weight, portability, easy cleaning and good sealing.

Plastic products often have a plastic classification mark, which is a triangular symbol composed of three clockwise arrows, with the number 1~7 in the middle of the symbol. Each number represents a different plastic composition.

Among them, plastic boxes used for microwave heating are mostly made of PP, numbered 5. PP, that is, polypropylene, is resistant to high temperature, does not produce harmful substances when heated, and can be used repeatedly after cleaning. If you want to choose a plastic lunch box, please find PP.

Now there are many tableware that look like ceramics, but they don't feel like it. This kind of tableware is called "imitation porcelain tableware". Imitation porcelain is a kind of plastic product similar to ceramics, and its full name is "melamine formaldehyde plastic". Generally, this kind of plastic can only tolerate the high temperature of 120℃ and the low temperature of -30℃. The porcelain-like tableware made is beautiful and odorless, and it can be eaten hot just out of the pot, but it is not recommended to put the high-grade porcelain-like tableware in the microwave oven.

Which is safer, a paper lunch box or a plastic lunch box? Is it poisonous to pack hot food in plastic bags? It may not be what you think.

Buy some steamed stuffed buns and eggs for breakfast, and merchants usually pack them in plastic bags. It is rumored that buying hot steamed bread for breakfast and putting it in a plastic bag will dissolve the plastic bag and release a plasticizer that is harmful to you. If you eat it in your body, it may increase the risk of poisoning.

There are mainly two kinds of plastic bags on the market, polyethylene and polyvinyl chloride. The so-called "food-grade plastic bags" are actually polyethylene plastic bags. The chemical structure of polyethylene is very stable, it is not easy to have chemical reactions, and it has good heat resistance, but the production cost is relatively high, so some unscrupulous merchants use cheap PVC plastic bags instead.

Because PVC plastics are easy to age in the sun, plasticizers must be added to PVC products to maintain their stability.

If food containing plasticizer molecules is ingested, it will be harmful to human body. For example, children may develop prematurely after ingesting plasticizers, affecting their height.

The heat-resistant rifle of PVC is about 60~80℃, which is likely to decompose its components. If it penetrates into food, it will also pollute the food, and people who eat it are more likely to increase the risk of cancer.

However, the state has set strict standards for the material of food plastic bags. The oil-resistant temperature of polyethylene can basically be as high as 130~ 140℃, and the food-grade temperature is usually only 60~80℃, which will not cause the melting of polyethylene plastic bags.

The whole people are more serious-Tencent journalists have measured the temperature of many kinds of food just out of the pot on the roadside, and the highest temperature is around 60℃, so you can eat it with confidence.

Wang Juan, a teacher from the Department of Food Science, School of Public Health, Chengdu University of Traditional Chinese Medicine, explained that the take-out boxes mainly use disposable plastic lunch boxes and paper tableware, which have certain acid, oil and salt resistance.

As long as the take-away box meets the national standards and is used once, there will be no problem and there is no need to worry about cancer. Therefore, everyone must choose qualified products when buying plastic bags, and don't be greedy and cheap.

Of course, for the sake of environmental protection, we still advise you not to use plastic products for a long time. You can choose to bring your own glass bowl or other containers, which can be reused without releasing harmful substances, which is relatively good for protecting your health.

Tips for choosing plastic bags, I suggest you know!

1. See if the plastic bag is marked "edible". Usually this sign is usually on the front of the packaging bag, in a more eye-catching position.

2, the choice of plastic bags depends on the design style, especially according to the items you need to choose the right style and put it in plastic bags. That will be more convenient and the packaging will be more convenient. Plastic bags with wide handles will not have a serious sense of weight when carrying things, and will be more comfortable.

3. When buying plastic bags, you also need to check the tensile strength of plastic bags. Bags with poor tensile strength will be damaged during use, especially when carrying heavy objects, and it is easier to deform or break the handle.

4. Colored plastic bags mostly use waste plastic recycled materials and cannot be used to hold food. Just like buying thick black plastic bags for aquatic products, use them as little as possible if they are unsafe.

5. See if there are any impurities in the plastic bag. Put the plastic bag in the sun or light to see if there are black spots and holes. Plastic bags with impurities must be made of waste plastic.

5. Smell the plastic bag for smell and nausea. Qualified plastic bags should be tasteless, while unqualified plastic bags will produce various smells because of the use of additives.

6. Touch the surface of the plastic bag with your hands, which is smooth and nontoxic. If the colors are mixed together, it feels sticky, astringent and toxic.

7. Qualified plastic bags will make a crisp sound when shaking; Unqualified plastic bags often buzz.

8. Put the plastic bag in the water and press it to the bottom by hand. After a while, the non-toxic plastic bag surfaced and the toxic plastic bag sank to the bottom.