What are the requirements for a high-quality electric kettle

1. Stainless steel

Stainless steel usually uses four specifications: 201, 202, 304, food grade 304

Their main difference lies in the difference in metal content: 201 and 202 have more manganese and less nickel. This type of stainless steel is neither acid-resistant nor alkali-resistant, and it is easy to resolve heavy metals during corrosion. Not suitable for long-term use. 304. Compared with food grade 304, 201 and 202 are much better. It has good acid and alkali resistance and strong corrosion resistance. There is also a difference between 304 and food grade 304. The lead content of food grade is lower than that of ordinary 304, and it meets the national stainless steel food hygiene requirements.

2. Hard glass

Advantages: safe material, high appearance

Disadvantages: Although the hardness is high, it will break under strong impact

Generally, the material of the glass electric kettle is high borosilicate glass. Because of its high stability, the material is absolutely safe. Many glass bottles on the market use high borosilicate glass, which shows its safety.

electric kettle

In addition to safety, this type of electric kettle has a relatively high appearance, the glass is transparent and visible, and the heating situation is at a glance. And many products have a built-in night light. The light is reflected on the water through the glass during work, which is pleasing to the eye, and with the light, it also adds a safety guarantee in the case of insufficient light at night.

3. Food grade silicone

Advantages: safe material, soft, durable, not easy to accumulate scale

Disadvantages: looks a lot like plastic, full of cheap feeling

Food silica gel is an inorganic polymer colloidal material made by polycondensation of silicic acid. It is non-toxic and tasteless, does not react with any acid, alkali, salt, and has stable chemical properties. It is widely used in water dispensers, kettles, irons, rice cookers, And other products. And because the material is relatively soft, it is often used in portable electric kettles.

The working principle of the electric kettle: The water vapor generated when the water boils deforms the bimetallic sheet of the steam temperature sensing element, and this deformation pushes the power switch to cut off the power through the lever principle. Its power off is not self-resetting, so the kettle will not automatically reheat after power off. As the basic function of the electric kettle, the accuracy of the automatic power-off when the boiling water is boiling is mainly due to the thermostat.

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