The Induction Wok by Küppersbusch uses electromagnetic energy to heat the wok itself, a faster, safer, cooler and more efficient form of cooking. When the unit is turned on, the coils produce a high frequency, alternating magnetic field, which flows through the cookware quickly and evenly, stimulating the molecules in the cookware to move back and forth rapidly, thus creating friction, which creates heat to cook. Unlike traditional cooking surfaces that heat up and stay hot long after the meal has been prepared, the concaved black glass-ceramic surface of the Küppersbusch Wok stays cool to the touch as is unaffected by the magnetic field.