Nowadays, a kind of tableware that looks like porcelain, that is, melamine tableware is popular. However, the sampling report issued by the Jiangsu Provincial Bureau of Quality Supervision recently showed that 1/4 of the melamine tableware was found to be resistant to pollution.
Can melamine tableware still be used?
Random inspection of melamine tableware 1/4 failed
The melamine tableware is a kind of tableware which is made of resin as raw material and looks like porcelain. It is firmer than porcelain, not easy to break, and has bright color and smooth finish. Because it is light, beautiful and durable, it is widely used in fast food restaurants, canteens and baby products.
Recently, the Jiangsu Provincial Quality Supervision Bureau has randomly selected 100 batches of samples from large supermarket chains, wholesale markets and e-commerce platforms. The results show that the pass rate is 75%, and the pollution resistance indicators of some products are unqualified. The sampling also showed that the melamine tableware below 5 yuan had the highest pass rate, reaching 79%, while the pass rate of 20 yuan or more was the lowest, only 68%. Why is this?
Liu Yangmei, senior engineer of Jiangsu Provincial Quality Inspection Institute, publicly explained that this is mainly due to the high volume of melamine tableware products, the large amount of raw materials used and the high cost. In the case of extremely limited profit margin, the manufacturers are not effective. improve product quality.
The contamination test of the melamine tableware by the staff found that the contamination of the unqualified tableware was more serious than the qualified melamine tableware. Liu Yangmei said that the pollution resistance of melamine tableware is unqualified, which will lead to easy penetration of soy sauce and vinegar in daily life, and it is easy to hide dirt and bacteria.
On March 17, the reporter saw in a large supermarket in Shuangjing, Chaoyang District that the types of melamine tableware covered spoons, small trays, sauce dishes, bowls, plates, etc., the price is mostly below 20 yuan, and some imitation Japanese The price of the instant noodle bowl or rice bowl is slightly higher, mostly more than 20 yuan. Most of these melamine tableware are affixed with a product certificate and printed with the manufacturer's name, address and telephone number. Most of the products have a QS mark and indicate the main components, properties and applicable temperature range of the product. It also clearly indicates the product shelf life and the words "Do not heat in the microwave oven".
â—Ž Buy melamine tableware to pay attention to five
1 Try to pick the tableware marked "MF" with the "QS" mark. If it is marked with “UFâ€, it can only be used for the storage of non-food items or the need to peel food products (such as oranges, bananas), and can not contain food directly imported.
2 Check the outer packaging: check whether it has the certificate, the factory name, the contact number, the implementation standard, etc. Imitation porcelain without any signs, consumers are advised not to buy.
3 Buy tableware in regular supermarkets and shopping malls, don't buy goods in a cheap way.
4 When purchasing, please check whether the appliance has obvious deformation, color difference, smooth surface, whether the bottom is uneven, whether the decal pattern is clear, whether there are wrinkles or bubbles, and the colored tableware is rubbed back and forth with a white napkin to see if There are phenomena such as fading.
5 Children should not use brightly colored melamine tableware, especially on the inner side. Try to choose light-colored melamine tableware.
To avoid prolonged high temperatures
The melamine tableware is also called melamine tableware, and its monomer is melamine and formaldehyde. According to relevant experts, melamine and formaldehyde monomer are indeed harmful to human body, but if the two are completely polymerized and have stable performance, they will not cause harm to the human body.
Although the content of melamine and formaldehyde in melamine tableware is very low, it will be released under high temperature conditions, which is harmful to human health. In general, the temperature resistance of melamine tableware is between 0 °C and 120 °C. But now there is a kind of inferior melamine tableware on the market, which is made of urea formaldehyde resin which is banned by the state. The urea formaldehyde resin is only about 80 °C, so the same temperature will release more formaldehyde.
Liu Qingyu, deputy dean of the Beijing Academy of Science and Technology, reminded that the use of melamine tableware should be used normally according to the conditions of use of the product, and should not exceed the safe temperature limit, especially the dry heat temperature should not exceed 120 °C, and microwaves must not be used. Heat, otherwise formaldehyde or melamine may be released due to overheating. In addition, in use, care should be taken not to hold acidic, oily, alkaline foods or beverages for a long time. In particular, it is not possible to heat foods containing more oil in melamine tableware in a microwave oven to avoid the generation of highly toxic cyanide.
Liu Qingyi also reminded that even the melamine tableware of qualified materials has a service life, and the use time is preferably controlled in half a year or one year. If it is used for a long time, it will dissolve toxic substances.
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