內容目錄
“Eating with this kind of bowl is equivalent to eating poison!”
Ms. Liu’s daughter is three years old this year, and she is very picky eater. Chasing behind with a bowl of rice to feed.
In order to let the children eat more, the whole family racked their brains to find a way. No, Ms. Liu’s mother-in-law bought a fancy imitation porcelain bowl from the Internet, with the print on it. There are many cartoon characters, my daughter likes it very much, and my appetite has also improved.
But recently Ms. Liu’s mother came to visit her from her hometown. After seeing the bowl that the child used to eat, she asked her to throw the bowl away, saying that this kind of bowl would Release formaldehyde, carcinogenic.
Ms. Liu wanted to throw the bowl away when she heard it, but her daughter grabbed the bowl so hard that she wouldn’t throw it away, and she burst into tears as soon as she grabbed it.
For children, colorful imitation porcelain bowls are very attractive, but are imitation porcelain bowls really harmful to health?
1. Does imitation porcelain bowl cause cancer? Beware of low-priced products
Imitation porcelain bowls, also known as melamine tableware, are made of melamine resin, light in texture, high temperature resistance, corrosion resistance and high humidity resistance.
Zou Zhenxing, lecturer at the School of Bioengineering, Hunan Institute of Environmental Biologyintroduced that regular imitation porcelain bowls will not harm the human body Health damage, but some unscrupulous merchants on the market use lower urea amine resin instead of melamine resin to produce fake and inferior imitation porcelain Bowl, this kind of inferior imitation porcelain bowl will release formaldehyde and ammonia gas under the conditions of high temperature and high humidity, which will cause harm to human health.
Inferior imitation porcelain bowls are cheap but dangerous. In a TV show, the experimenter put low-priced imitation porcelain bowls and high-priced imitation porcelain bowls into separate More than 290 degrees of hot oil, and then test their formaldehyde emissions separately. It was found that low-priced imitation porcelain bowls would rapidly release 1.5mg/m³ of formaldehyde, which is seriously exceeding the standard; while high-priced imitation porcelain bowls released The amount of formaldehyde is 0.29mg/m³, which is relatively light.
Second, how to distinguish the quality of imitation porcelain bowls?
Since imitation porcelain bowls will release a certain amount of formaldehyde, does that mean that imitation porcelain bowls cannot be used in the future? In fact, imitation porcelain bowls are not unusable, but it is necessary to distinguish between good and bad. You can use 5 methods to distinguish good and bad imitation porcelain bowls:
1. Look at the production Indication of compliance
Qualified imitation porcelain bowl products haveQS mark< span>, implementation standards(QB1999-1994), and production license< /strong>.
2. Reference price
The price of one ton of melamine resin is about ten thousand Four or five, so the price of qualified imitation porcelain bowls is usually more than 10 yuan, while the price of inferior products is relatively low.
3. High temperature test
Put the imitation porcelain bowl into boiling water and boil half Hours, if foaming, whitish, pungent smell, cracking, etc., is a poor quality product.
4. Low temperature test
Place the imitation porcelain bowl< strong>0℃~minus 7℃, take it out for observation after 24 hours, if it is a poor quality product, there will be cracks.
5. Alcohol test
Wipe the imitation porcelain bowl with cotton dipped in some alcohol, If there is discoloration, it is an inferior product.
Third, these bowls should be used as little as possible for children
There are various tableware on the market, and the quality is also uneven. We should pay more attention when choosing children’s tableware, especially these two kinds of bowls should be used as little as possible for children.
1. Overglaze color
Ceramic tableware is usually decorated with glaze color. There are three main ways to make tableware, namely, overglaze, underglaze and underglaze, among which cadmium, lead, etc. Harmful metals mainly come from on-glaze pigments.
You can touch the surface of the porcelain with your hands.If the surface of the pattern decoration is rough to the touch, it is usually the glaze color . Long-term use of glazed tableware may easily dissolve harmful metals and then enter the human body with food, resulting in chronic poisoning.
2. Plastic bowl
New York University once released a set of shocking data, microplastics (microplastic particles with a particle size of less than 5 mm) in infant feces, 10 to 20 times more than adults.
Because babies use plastic products extensively, such as chewing on plastic toys, using plastic cutlery and feeding bottles, etc., it is necessary to minimize children’s contact with plastic.
At present, the impact of microplastics on the human body has not been conclusive, but potential harm exists, such as20 microns< /strong>Plastic particles can enter the blood circulation system and cause harm. Strictly speaking, imitation porcelain bowls are also a type of plastic tableware.
Fourth, stainless steel bowls, glass bowls, ceramic bowls… What kind of bowls are good for children?
When buying tableware for children, we will find bowls made of various materials, so how to choose these bowls?
1. Stainless steel bowl
Stainless steel bowl has better corrosion resistance and is easy to clean , It is not easy to breed bacteria, and it contains few chemical elements, so it will not deteriorate or deform under high temperature. Even if it falls to the ground, it will not be broken, so it is more durable. But be aware that stainless steel bowlscannot be microwaved,can’t hold acidic food,To avoid precipitation of heavy metals.
2. Glass, ceramic bowls
Glass and ceramic tableware are more environmentally friendly and made The workmanship is perfect, but it is easy to break and hurt the child. In addition, ceramic bowls also need to pay attention to the problem of glaze color. Therefore, it is best not to choose glass or ceramics for children’s bowls. If you must use them, you can choose ceramic tableware with solid color without pattern and smooth surface.
3. Wooden bowls
Wooden bowls have a certain thermal insulation effect, and the natural The texture of wooden tableware is soft and delicate, and it is not easy to hurt children. But it also has the disadvantage that it is easy to be corroded and cracked, inconvenient to clean and easy to breed bacteria. However, it should be noted that some wooden bowls will have paint added to the surface, which has certain toxicity and is not conducive to the health of children, so pay attention to choosing natural wooden bowls.
Actually, you don’t need to be too tangled when buying tableware, you can buy it from regular channels Trustworthy brand, open your eyes to select tableware with safe craftsmanship and material. #Number Weekly# #Everyone can popularize science, and there are new knowledge everywhere#
References:
[1]Li Ying. Melamine Children’s Bowl Fun and good-looking? Beware of lead poisoning! [J]. China Quality Miles, 2016(05):40-42.
[2]”Is this true”: Imitation porcelain bowls can cause cancer? .Look at Hengyang.2016-09-14
[3]The baby is the biggest victim? The latest research: The concentration of microplastics in infant feces is higher than that of adults. China Engineering Science and Technology Knowledge Center. 2021-09-27
[4] “Healthy” human body found “microplastics” for the first time, is it harmful to health? ? The answer is here. People’s Daily. 2018-11-06
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