1. First, prepare an electric kettle suitable for vehicles and a power cord that can be connected to the vehicle cigarette lighter.

2. Secondly, put the electric kettle in a safe place in the car, such as next to the cup holder or seat, then plug the power cord into the cigarette lighter socket and turn on the power switch.

Finally, when the electric kettle heats the water to boiling, carefully unplug the power cord and the electric kettle to avoid scalding or splashing water.