Drying apple slices in just three hours and beef jerky in four, this 1000-watt dehydrator is exceptionally fast, using a big, 4-1/2-inch fan to force air up through the drying trays' outer rings and across each tray. A thermostat adjusts from 95 degrees to 155 degrees for drying different items. Each of the four plastic trays is 13-3/4 inches in diameter and 1/4 inch deep—that's four square feet for drying fruits, vegetables, herbs, or flowers at one time. Additional trays can be ordered separately, and up to 30 trays can be stacked on this unit's metal base at once. A fruit-roll sheet inserts into a tray so that applesauce or other fruit sauces can be dried into healthful snacks, and soups and sauces can be dehydrated for camping trips. Beef-jerky spices and a detailed 64-page recipe and instruction booklet are included. The dehydrator measures 15-1/2 inches in diameter and 10 inches high, cleans easily, and carries a one-year warranty against defects.