How about semi-automatic pump type coffee machine?
First press the switch, then the machine will automatically add water, the boiler will make a sound. If you wait for the boiler to add 9 watts, then you can make the coffee.
First press the switch, then the machine will automatically add water, the boiler will make a sound. If you wait for the boiler to add 9 watts, then you can make the coffee.
First press the switch, then the machine will automatically add water, the boiler will make a sound. If you wait for the boiler to add 9 watts, then you can make the coffee.