1. First, take the thermostatic kettle out of the base and fill it with water. Be careful not to exceed the highest water level line to avoid water boiling and overflowing.

2. Put it on the base, plug in the power supply, turn on the switch, and proceed to the next operation.

3. Next, click the function key to set the required constant temperature. The general constant temperature hot water kettle must have a degree indicator. If not, you can buy a temperature indicator sticker and stick it on it.

4. Finally, press the boil water button to boil water normally.