These nectarine segments have been outdoors less than 24 hours now, and they are clearly drying, not rotting.
This picture is taken through the mesh of the white garment-washing bag, and I used the "enhance" feature on my photo app to punch up the color and contrast. The fruit is resting on the plastic screen and support shelf of my electric dehydrator, removed from the power-sucking beast for this experiment, and the mesh bag is supported up off the fruit with an overturned wire letter basket. It's all perched on a garden chair with a breezy seat, so there's air underneath too.
I'm so happy. I don't really "need" dehydrated food, because my garden is not producing enough stuff to swamp me. In fact, I bought the nectarines. But I wanted to save some for later, just because now I know I can.
Later on this summer I'll try genuine home-grown sun-dried tomatoes. The only kind I've ever made has been oven dried. Feh!