11.Using an Oven
Set the temperature to 140 degrees or your food will cook instead of dry. Leave the door open a few inches so moist air can escape. If you can, put a fan outside the oven door to help move the air inside. You can use special trays or turn your oven racks into trays by covering them with muslin or cheesecloth. Spread items in a single layer and turn every few hours. It will take the food several hours to dry.
12.Using a Dehydrator
Dehydrators take less time and use less energy than an oven. Most produce should be blanched first in boiling water to stop bacteria and to get the best taste. Put pieces in a single layer on a tray at 140 degrees. To help food dry evenly, rotate the trays from top to bottom rack halfway through. Times vary but will take several hours.
