Then, disappointed by the morning blog fare, I went browsing back through old comments at Eleutheros' place, and found this praise for dehydrated food:
A bushel of tomatoes fits into two quart mason jars and the taste is much more like fresh tomatoes than canned or frozen. The children call them 'ketchup candy'.Since we live in one of the sunniest parts of the world, I Googled "solar dehydrator." I learned that dehydrated food is much more nutritious than canned, and found everything from simple small dehydrators made from cardboard boxes, plastic film, and tape, to elaborate manufactured models.
Path to Freedom has a collection of links about food dehydration, including plans for several different types and sizes of dehydrators.
This solar chimney dehydrator looks promising. It's not much different from the small cardboard box model, except that it has a tall cabinet behind the collector panel, with vents strategically placed to draw the air through all the trays of food. I'm thinking I might try the small cardboard box model first just to get a feel for the process.