What does it mean to boil the kettle to prevent dry burning?

Dry-burning prevention refers to preventing the kettle from being electrified without water, or continuing to be electrified when the water is dry, which may easily cause fire or other losses.

The function of preventing kettle from dry burning is realized by using internal temperature controller. When the temperature exceeds the set value during dry burning, the thermostat will cut off the power supply to prevent the temperature from rising further, thus preventing the kettle from burning or even catching fire.