Dielectric heating

Dielectric heating, also known as dielectric loss heating or RF (radio frequency) heating, is a process in which electromagnetic energy is converted into heat within non-conductive (dielectric) materials. This occurs when alternating electric fields are applied to these materials, causing dipolar molecules (such as water molecules) to rotate and align themselves with the electric field. As these molecules shift back and forth with the changing field, they collide with neighboring molecules, transferring energy and generating heat through friction.