Method of Water Temperature Calibration for Electric Kettle

A method of water temperature calibration for an electric kettle which contains a predetermined volume of water, comprising the steps of:

• (a) providing a temperature sensor, a microprocessor, and a control circuit to said electric kettle;
• (b) detecting an interior temperature in the electric kettle, wherein the interior temperature is measured by one of a temperature of said water, a temperature of a heating point contacting with said water, and a temperature of an interior wall of a kettle body of said electric kettle;
• (c) determining a temperature rate change by said microprocessor and comparing a current cycle of said temperature rate change with a previous cycle of said temperature rate change;
• and
• (d) sending out a control signal to said control circuit when said current cycle of said temperature rate change is close to said previous cycle of said temperature rate change that a difference between said current cycle of said temperature rate change and said previous cycle of said temperature rate change is minimized.