Mechanism of Microwave Oven

  •                             Mechanism 

  • Microwave ovens work by passing non ionizing microwave radiation through the food, at a frequency approximately 2.5 GHz.

  • Microwave radio frequencies pass through water, fat, and other substances causing a process called dielectric heating.

  • Water molecules have a positive charge at one end and a negative charge at the other called electric dipoles.

  • As microwaves pass through water molecules, the molecules rotate as they try to align themselves with the alternating electric field.

  • This molecular movement creates heat. Microwave heating is most effective on liquid water.

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