Solar Food Dehydrator (Dryer). Dry your fruit, vegetables, and other goods with your own sun powered dehydrator. Electric Food Dehydrators can be expensive and consume unnecessary energy. This solar dehydrator was made entirely of recovered materials. It was constructed with scrap ply wood, 2x4s from an old ladder, a house window, and other items which could be considered trash. It was created as a project at Maharishi University of Management in Fairfield, Iowa.