This kettle allows to precisely adjust the temperature from 30 to 100 degrees in steps of 5 °. It quickly heats up to 2 liters. These qualities make it perfect for tea lovers (eg a temperature of about 70 ° is preferred for green teas; too high a temperature would burn the leaves ...). There is also a second button that keeps the water at the desired temperature as long as you want ... This makes 2 years that I have and I am very satisfied!