This year most of my spring honey has 1/2 to 3/4"of crystals already. It was stored in a metal building, it is hot there, like everywhere down here. I have another building with a unpainted metal roof I have set the jars with crystals on that roof for a few hours and they are not crystalized anymore. Never had any to crystalize that quick before.
I don't have a lot of hives, so not a lot of honey to sell or try to keep from crystalizing. As of today I have 13 pints left and I can eat that much. That is the best place to store it anyway, in your tummy. HA
Joe