I like to dry food for canoe and backpack trips. I have been using a commercial dehydrator that did the job over a couple of weeks. Then when my daughter decided to dry yarrow for a local store that makes a cream, the system got overloaded.
So… I built this dehydrator. It is much larger in scale than my previous dehydrator, uses solar energy as the heat source and a recycled fan to move air across the screens. It is also easy to load and unload.
When I designed this dehydrator, I wanted to be sure that air was free to circulate across all the screens, that the dehydrator not impart anything to the stuff being dried and the heating process was effective and inexpensive.
The dehydrator is a basic box supporting a number of screens with a fan moving air across the screens, glazing on one side, brackets that separate and hold the screens, an air distribution system, a large door and that moves air across all the screens.