According to the instructions of Midea's glass electric kettle, due to the temperature change, the glass electric kettle will expand when heated. You can try to heat the kettle with hot water to gradually increase its temperature, and then slowly cool it, which can relieve the pressure of thermal expansion and cold contraction and reduce the damage of the kettle.
The advantages of glass electric kettle are acid and alkali resistance, good corrosion resistance and high stability.