I also dehydrate chicken in a dehydrator at 140 degrees. In past years I've dehydrated canned, fresh cooked chicken breast, rice dishes with the chicken already cooked in (one pot meals) and use the foil packages when I don't have time to dehydrate. Heres a tip! go to the deli dept at the local food store and have them slice cooked chicken breast as if for sandwiches but thicker. All the pieces are sliced uniformly which aides in the dehydration process and the rehydrating process.
After lunch I will put the chicken a wide mouth nalgene bottle with water and let it rehydrate till it's time for dinner then just add it to what ever recipe that I'm preparing. Most deli chicken by the way has less than 1 gram of fat per 2 oz. serving, very lean. Boarshead has a hickory smoked chicken which is out of this world when used in chicken salad.

flp