MW drying has got popularity as an alternative drying method for a wide variety of food products such as fruits, vegetables, snack
foods, and dairy products. Microwaves are electromagnetic waves
in the frequency range of 300 MHz to 300 GHz, generated by a
magnetron type vacuum tube. Electromagnetic energy can be
absorbed by water that is based on the transformation of alternating
electromagnetic field energy into thermal energy by
affecting the polar molecules of a material (Maskan, 2000).