Thus drying with moderate microwave power at low pressure conditions is recommended for drying mushroom slices (Lombrana et al., 2010). One of the disadvantages of microwave drying is that excessive temperature along the corner or edges of food products results in scorching and production of off-flavors especially during final stages of drying. This is due to the difficulty in the control of final product temperature in microwave drying whereas in hot air drying, the product temperature never exceeds the hot air temperature.