Abstract: A dehydrator apparatus for foodstuffs and the like comprising a generally cylindrical tubular housing having a motor driven fan disposed generally centrally therein and above a base wall portion. A plurality of air inlet flow channels are provided in the base of the housing opening into the interior generally around and adjacent to the fan to provide for inlet air flow generally over the fan motor. A plurality of vertically stackable nested food drying trays are adapted to mount on the top of the housing, each tray being provided with a foraminous food supporting shelf having a substantial number of openings arranged in radially spaced apart annular rows. The openings are generally rectangular in shape and are convergent in the intended direction of air flow to minimize recirculation or flow in a direction opposite to the intended vertically upward flow direction thereby enhancing the drying or dehydrating performance of the apparatus.