Instructions for Oven Dehydrating for Food


While it is possible to dehydrate food in an oven, it is costly, as the oven needs to be on for hours during the process. Some foods take over 24 hours to adequately dry. Another issue is temperature control. The low temperature of some ovens are high for dehydrating; however, some convection ovens can maintain a temperature of 120 degrees F. If your oven doesn't go as low as 140 degrees F, your food will cook instead of dehydrate.

Things You'll Need

  • Oven thermometer
  • Drying trays
  • Fan
  • Place an oven thermometer on the middle of the top tray. Arrange the thermometer so you can see the reading.

  • Preheat the oven to 140 degrees F. During the process, keep the temperature between 140 and 160 degrees F.

  • Prepare between 1 to 2 lbs. of food to process. Refer to a drying cookbook, as some foods require blanching or pre-treating. The food should be clean, defects removed and uniformly cut, such as in 1/4-inch slices.

  • Arrange the foods on drying trays, in a single layer, without the pieces touching each other.

  • Place the trays in the oven, with one tray per oven rack, situating the trays in the center of the racks to allow for air circulation.

  • Keep the oven door slightly ajar while drying, between 2 to 4 inches.

  • Set a portable fan near the oven door and turn on, to provide circulation to the oven.

  • Rotate the trays every half hour. Refer to your dehydration recipe for how long to dry the food you are preparing.

Related Searches


  • Photo Credit Thomas Northcut/Photodisc/Getty Images
Promoted By Zergnet



You May Also Like

Related Searches

Check It Out

22 DIY Ways to Update Your Home on a Small Budget

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!