Up until this past year I would always sell out before the honey would crystallize. But, as we have started having honey later into the year I have found the pail heater useful. But, as Mr. Bush points out they do get pretty hot so you have to watch it. I recently bought a bottling tank and like it a lot better for reliquifing the honey. If you keep honey into the fall and winter you are going to eventually need a way to warm it up for bottling or reliquifying.