Changzhou Huisheng Maoxin Plastic Products Co., Ltd.

The main component of porcelain imitation material is melamine, which is not suitable for microwave oven.

The microwave oven is available for the music clasp lunch box, but the box cover cannot be heated by the microwave oven. Therefore, the box cover shall be removed during heating.

If some readers feel that there are too many and complicated things in this article, they can use the following doggerels to help them remember:

If you want a microwave, you need No. 5, a drink bottle. Throw it away quickly. Don't heat the baby's milk bottle. Remove the plastic film. The seven materials are different, so it is important to be careful and healthy.

Live replay 1: Zhang Nan is studying in college. Every week when he comes home, he surfs the Internet. When he is hungry, he can get instant noodles. If it is troublesome to boil water, put the boxed instant noodles with cold water directly into the microwave oven. One day Grandpa found it and told him that the plastic box could not be used for microwave heating. Zhang Nan said that microwave lunch boxes are also plastic. Uncle Zhang knew there was something wrong, but he couldn't persuade Zhang Nan. So is it right for Zhang Nan to do this?

Live replay 2: Every morning, Liu Yuan used to fill his breakfast with plastic tableware, cover it, and put it into the microwave oven for heating. In order to save time, she adjusted the fire power to high and set the working time to 3 minutes. After pressing the start button, the microwave oven began to operate. What Liu Yuan didn't know was that his food was being eroded by harmful substances released by plastic.

It is understood that there are many plastic tableware that can be nominally used in microwave ovens on the market, but in fact, there is no standard for tableware used in microwave ovens in China. These tableware nominally "can be used in microwave ovens" may not be safe when they are used in microwave ovens for heating or cooking.

Wen Jie, a doctor of public security at Peking Union Medical University, said that at present, plastic boxes in the market are made of two materials, No. 5 and No. 6 plastic. Only plastic boxes marked with No. 5 can be used in microwave ovens. Usually, many of the microwave cups and lunch boxes we use are made of this kind of plastic. Look at the bottom of the box. If there is a sign surrounded by a triangular arrow, if it is No. 5, it can be heated by microwave, but not No. 6.

Market research: the quality of special products is uneven

A few days ago, the reporter found that the price of "microwave special" plastic tableware sold on the market was confused, the products were mixed, and the quality was worrying.

In a large supermarket, the reporter saw that many of the plastic tableware sold by the supermarket were marked with the words "microwave only" at the bottom, but there was no indication of the working temperature and recommended service time. The price of these plastic tableware was mostly 20 to 50 yuan each. There are many kinds of microwave tableware, but their identifications are different. Some have marked the use temperature and method, some have only marked the use temperature, and some have no instructions.

Disclosed: "Microwave dedicated" may not be reliable

"Although many tableware are labeled as' microwave dedicated ', this does not mean that it is really suitable for microwave ovens." Dong Jinshi, vice chairman of the Plastics Recycling Committee of the China Plastics Association and secretary-general of the Beijing Environmental Protection Tableware Joint Organization, said that at present, the country has not introduced relevant standards for microwave tableware.

If the plastic tableware for microwave is marked, if the price is too cheap, the label is not reliable. If the manufacturer uses ordinary plastic products to pretend to be plastic tableware specially used for microwave, this kind of plastic can not withstand the high temperature baking, and is easy to melt. The residue in the plastic will seep into the food, which will endanger people's health after eating.

In addition, some manufacturers will produce unqualified plastic products in order to reduce costs. If such plastic products are recycled repeatedly or heated at high temperature for a long time, they will release toxic substances and cause harm to human body.

Consumption reminder: plastic lunch box is only heated but not cooked

The main feature of microwave oven heating is uneven heating.

The plastic products that can really be used in microwave ovens are made of polypropylene, which can withstand the temperature of 120-130 ℃. However, the temperature of microwave heating can exceed this temperature, reaching 150 ℃.

Even if the plastic tableware of microwave oven is tested as qualified according to the standard, it is only recommended to be used under the condition of short time heating below 700W. Unless the product is marked for cooking or has obtained other international certification with higher requirements, it can be used under more strict conditions.

700W is roughly equivalent to the mid-range firepower of the microwave oven. Generally, the user manual contains the corresponding output power description for each range of firepower. Short term heating refers to 2-3 minutes of heating, and cannot be used for cooking cooked food.