The NuWave PIC2 is comprised of a series of induction coils (based on magnetic principles). These coils generate magnetic fields that produce a warming reaction in steel and iron-based pots and pans. In this way, heat is generated in the cookware and not on the cooktop surface, which is much more energy-efficient than traditional gas or electric ranges. Induction cooking is the most eco-friendly way to prepare meals because the method releases no toxins into the environment. Induction cooking emits no flame, so less residual heat is produced in your kitchen. The NuWave Precision Induction Cooktop 2 remains cool to the touch where the magnetic surface is not activated.