Microwaves are part of the electromagnetic spectrum and fall
within a frequency range of 300 MHze300 GHz. The most important
mechanism of microwave heating is its interaction with water
molecules which can generate heat inside of foods. whereas conventional heating depends on conduction
and convection to transport heat from the heating source through
an intermediate medium (e.g., water or steam) to the interior of the
product, which requires a relatively longer period of time