Cooking tremella soup in a health pot will cut off the power by itself because there is a temperature control switch.

There is a temperature control switch in the health pot, which uses the steam generated when water boils to deform the bimetal of the steam temperature sensing element, and uses the deformation to push the power switch through the lever principle, thus making the electric kettle automatically cut off after water boils.

Health pot refers to a small household appliance that can cook various ingredients for the purpose of health care, similar to an electric kettle.