This is the best induction device I've ever had. So far there were 3 pieces. The temperature increases were of 60 degrees 20 degrees immediately stepped to 240 degrees. When Silit can be from 60 degrees to 120 degrees by 5 degrees, to 180 degrees by 10 degrees, the rest at 20 degrees to 240 degrees. We are fully satisfied, device can only recommend !!!