Uncovering the "truth" about melamine tableware: melamine is not misunderstood, scientific use has to be careful
Melamine is the raw material of melamine tableware, the circulation of regular melamine tableware can be used normally. However, there is a selection, the use of science. Shanghai Municipal Administration of Market Supervision recently announced nine batches of melamine tableware failed list, five tableware was detected melamine migration failed, which also makes the "melamine tableware" safety concerns. In fact, melamine tableware is very common in the market, it is also known as imitation porcelain tableware, is essentially a plastic product. However, the emergence of the word melamine, so that consumers can not help but be a little sensitive.
Is it safe to use melamine as a raw material for melamine tableware? On June 29, Xiao Dehai, an assistant researcher at the Changchun Institute of Applied Chemistry of the Chinese Academy of Sciences, told the Xinjing News that qualified melamine tableware has almost no free state melamine and formaldehyde monomer, which will not be harmful to people. At the same time, he also reminded consumers to use melamine tableware, the heating temperature should not exceed 120 ℃, not in the microwave oven, high temperature use or oil food, etc., try to avoid using in acidic conditions.
Melamine tableware is not terrible, melamine tableware is beautiful, not fragile, flame retardant, long replacement cycle, these characteristics are favored by some fast food restaurants as well as families. Melamine is an important nitrogen heterocyclic organic chemical raw materials, in the presence of melamine tableware, is it safe?
The reporter reported that the main raw material of the mylamine tableware is high-purity mylamine resin, which is a polymer compound made of melamine and formaldehyde polymerization. He said, "there is almost no free state melamine and formaldehyde monomer in the qualified products, which will not be harmful to people".
The Shanghai Municipal Bureau of Market Supervision also pointed out in its analysis of the sampling of melamine tableware that the production of melamine tableware using melamine as raw material is a mature process, melamine formaldehyde resin is very stable below 120 degrees Celsius, as long as the production process is satisfactory, consumers do not have to worry.
According to the national food safety standards and food contact plastic materials and products requirements, for melamine tableware melamine migration test conditions is 70 ℃, 4% acetic acid solution soaked for 2 hours, daily life, the actual use of conditions far below this test conditions.
It is important to note that the melamine tableware is not long-lasting. Xiao Dehai told the Xinjing News reporter, the use of scientific use of the amine tableware, "the life of the amine tableware is generally two to three years, in the use of the process, once the tableware cracking, discoloration, deformation, scratching and other phenomena, should immediately stop using."
The New Beijing News reporter learned that the use of the process of amine tableware, can not be used in an environment where the temperature difference is too large, otherwise it is easy to cause cracking phenomenon. In the cleaning of the amine tableware, you can not use a cleaning cloth, decontamination powder, etc. to clean the surface of the tableware, because it will rub the surface of the tableware, making it more vulnerable to contamination. In addition, try not to steam the food in the pot, high temperature easy to make the color pattern or tableware material may contain toxic substances precipitation.
Therefore, in the purchase of qualified laminate tableware should also be processed before use, you can boil with white vinegar or water for about 5 minutes, and then let the tableware soak to natural cooling, on the one hand, sterilization, on the other hand, to promote the dissolution or evaporation of residual harmful substances.
