Dehydration is the healthiest, easiest, and most economical way to preserve foods. Load the trays and set the temperature, the Excalibur dries the contents of all trays evenly so everything"s done at once. Dehydration concentrates the natural flavor, sweetness, and aromas of your food. Leaving you with a flavor that"s far healthier than high-fat snacks and high-sugar candies that are filled with chemical preservatives. The Excalibur 9-Tray Large Dehydrator provides 15 square feet of drying space making this the biggest and best there is. Ideal for large families, large gardens, craftspeople, and sportsmen. This unit includes flexible polyscreen tray inserts to prevent foods from sticking to trays, 7" fan, built in on/off switch, adjustable thermostat, and a convenient 26 hour timer.