Safety is not guaranteed, but nothing worthwhile in life is. While we’re at it, let’s get this out of the way. All information presented on this site is for entertainment purposes only. Nothing is based on factual food science and all ideas, concepts, suggestions, recommendations are anecdotal at best. Foodborne illnesses are very serious and may result in severe detrimental lifelong impacts and even death. Always properly handle, sanitize, cook, and store your food at the recommended temperatures as suggested by the FDA. Proceed at your own perile.
That said, food dehydration has been around for a very long time, since at least 12,000 B.C. (http://nchfp.uga.edu/publications/nchfp/factsheets/food_pres_hist.html) and is still regularly performed and consumed by people all over the world. It’s a time tested food preservation technique that if performed correctly can result in safe, tasty, nutritional, and light weight meals.