I had some pears I didn’t want to lose because I didn’t eat them fast enough. So, I sliced them into a solution of Fruit Fresh and water, let them soak about 10 minutes and then put them in the dehydrator. Wow the house smells nice now.
Before, I’ve dried apples and peaches with great results. I did some lemons not too long ago, then blended them (keeping some of the rinds for other uses) – makes great lemon zest. One thing though, citrus does tend to darken when drying, so they may benefit from the Fruit Fresh solution too, although it’s not necessary if the darkening doesn’t matter to you.