With questions, Consumer Report, together with Liance Technology (Guangzhou) Co., Ltd., purchased the hot-selling 12 electric kettle in the market and sent it to a third-party authoritative testing institution for comparative testing.
12 Electric kettle under test
Test index
Inner wall material, metal migration, boiling time, boiling noise, shell temperature
Look at the evaluation results first.
Electric kettles with various inner wall materials only step on the stainless steel qualified line.
We often hear about 304 stainless steel, also called austenitic 304. In China, the correct spelling is 06Cr 19Ni 10, while in Japan and Europe and America, it is generally labeled as SUS304 or 304. This kind of stainless steel has stable austenite structure, good corrosion resistance and processability, and is widely used in food industry.
304 stainless steel requires high content of nickel and chromium, which is the key to ensure that the steel does not rust. Generally, the higher the content, the higher the corrosion resistance of steel. According to GB/T 20878-2007 "Brands and Chemical Compositions of Stainless Steel and Heat Resistant Steel", the metal content limits of 304 stainless steel (06Cr 19Ni 10) are as follows: Mn is 0~2%, Cr is 18~20%, and Ni is 8 ~.
The test results show that the inner wall material of 12 electric kettle is all made of 304 stainless steel, which meets the national standard. It is worth mentioning that the content of Ni (nickel) in 304 stainless steel used in 12 electric kettle is low, which is close to the lower limit of 8- 1 1% in the standard, ranging from 8.00% to 8.22%.
The metal moved to Jiuyang, and the honor was slightly higher.
Consumer Report sent six kinds of electric kettles to the market in February, 20 16 and 16 respectively. It was found that the nickel migration of Philips HD93 16 and Jiuyang K 15-F2, which were made of 304 stainless steel, exceeded the standard.
More than three years have passed, has the situation improved?
According to the national standard GB 4806.9-20 16 "Metal materials and products in contact with food", five kinds of migratory substances, such as arsenic, cadmium, lead, chromium and nickel, were detected in this journal.
The results show that the metal migration of 12 electric kettle meets the national standard.
Among them, Midea, Oaks and Zhigao performed brilliantly, and were not detected under the experimental conditions of 4% acetic acid, boiling for 30min and standing at room temperature for 24 h (below the quantitative limit), while Jiuyang and Rongshida had slightly higher metal migration.
Wisdom is noisy and dangerous to burn.
This print has made subjective tests on boiling time, boiling noise and shell temperature.
As for the cooking time, bear, whirlpool and golden stove all took a little more than 3 minutes. However, Hemisphere and Royalstar are longer, lasting about 4 minutes. In the case of little difference in thermal efficiency, theoretically, the higher the power, the shorter the boiling time. Therefore, consumers who pursue rapid boiling may wish to pay attention to the rated power of the product before buying.
In terms of noise, 12 electric kettle has little difference, and the sound is about 70 decibels. Royalstar, Hemisphere and Xiaomi have lower noise when boiling water, while Jinzao, Supor and Kochi have higher noise.
As for the shell temperature, the handle temperature of 12 product is below 30℃, so consumers can rest assured. However, in the temperature measurement of the shell, the temperature of Zhigao and Xiaoxiong is higher, so consumers need to pay more attention. If there are old people and children at home, consumers had better not buy a single-layer stainless steel electric kettle, because the temperature of the outer wall of the kettle is still high after the water is boiled.
Suggestions for purchasing consumer reports
1. Choose a reliable material, look for the words, and check whether the words GB 4806.9 or 304 are printed on the product packaging, kettle body and inner wall.
2. Don't use the electric kettle to cook and make tea. Because some temperature limiters of electric kettles judge boiling and stop heating by sensing steam, if food is blocked, the kettle may not stop heating and cause damage. If there is demand for scented tea and wolfberry tea, consumers may wish to consider products such as health pots.
Pay attention to buy an electric kettle with a protective device at the spout, which is not easy to hurt the children at home.