The Sayona electric kettle uses strix technology in its operation. The strix control is a technology that uses thermostats to automatically power off when the boiling temperature is reached. This technology is also used to prevent the liquid being boiled from totally drying hence it automatically powers off. The heating element is made of stainless steel. With an overheat protection, just In case you may forget it plugged in, you have no reason to worry as it can regulate itself. This is a kettle that will serve you the best.