... ,The principle of microwave drying Microwave is a sort of electromagnetic wave which frequency is 300MHz to 300GHz .The water molecule ... baking almond, peach kernel, groundnut kernels, chestnut and so on; and for puffing of leisure food, pachyrhizus chips, potato ... materials, wood , cork, alveolate, cardboard,corrugated cardboard, and so on.4, drying and sterilizing features1, Fast heating.2,Save energy ...