I recently came across solar driers completely by accident while researching biodigestors. A strange thing finding food mixed up with faecal matters...anyway, I quite liked the idea of drying fruit and veg when there is excess and abundance available in my garden and in the wild. Especially when it doesn't involve consuming electricity in doing so. I've had small electrical dehydrators, they seem very energy inefficient, therefore I am not keen on using them.
After reading up on solar food driers, I decided to build one out of whatever resources I could find at the local resource recovery site. It wasn't hard, all the ingredients were sitting there waiting to be reused.
The following link has a pictorial evolution of what was built a few weeks ago.
Have a go at building your own one, it has potential to satisfy.