Category: Science & Nature, Technology, Gadgets

Microwaves are electromagnetic waves with a frequency range of 300 MHz to 300 GHz. Its characteristics are similar to those of light waves in that they can be transmitted through glass, absorbed by dielectric materials, or reflected by metallic objects. Microwaves typically operate at frequencies of 915 MHz for industrial use and 2450 MHz for general-purpose (home) ovens. Ionic interaction and dipolar rotation are the two main mechanisms by which microwave energy is absorbed by a material. Electromagnetic heating, including microwave (MW) and radiofrequency (RF) heating, is utilized in numerous industrial processes, including reheating, precooking, baking, drying, pasteurization, disinfestation, and sterilization.