Above 350 W microwave power, the energy consumption remained constant.Microwave drying was found to bemore efficientat operating conditions of 750 W and 350 s. At these operating conditions, optimum drying characteristics of spinach (in terms of drying time, energy consumption, color criteria and ascorbic acid level) were obtained (Ozkan et al., 2007). Lombrana, Rodriguez, and Ruiz (2010) studied the drying of sliced mushroom using a single
mode microwave at 2.45 GHz.