At present, the thermostat of stainless steel kettle is powered off by steam, which is the most stable and can meet the requirements of boiling water.
Working principle-when the water in the kettle boils, it will produce a lot of steam, which enters from this small mouth and enters the bottom of the kettle along the air guide channel. When high-temperature steam meets the heat-sensitive element, the heat-sensitive element will be deformed and the trigger switch will be turned off.
The kettle with obvious small mouth described by you can be said to be a rough machining in the kettle industry. One is that the appearance is not good-looking, which is easy to arouse suspicion. In addition, in this uncovered way, water can easily enter the small mouth directly, which will seriously cause the danger of electric shock.
When buying, it is recommended to buy a kettle with good workmanship, not too cheap. That kind of kettle can be bought for 20 yuan and 30 yuan, not to mention the appearance. The material of light stainless steel can't be 304, and the thickness is mostly within 0.3 mm If you press it with a little force, there will be pits. You know that if a kettle is made of 304 stainless steel with a thickness of 0.5mm according to the standard, the material cost of steel is almost 20, 30 yuan. Try to find out what is tricky.
Domestic kettles are generally recommended: Midea, Jiuyang, Supor and Dongling.
Personally, I pay more attention to the products exported from kettle enterprises in Europe, America and Japan to domestic sales. If these enterprises want to do a good job in the domestic market, they will generally cultivate a brand according to European and American quality standards. However, many of the words of domestic brand manufacturers are OEM, and the materials used may not have the characteristics of China.
Personally recommend the kettle of CLP. The company's stainless steel products are all made of 0.5mm 304 stainless steel, and the workmanship is made according to the standards exported to the United States and Japan. The natural price will be slightly higher, but my own experience is worth it!
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I hope I can help you!