I recently received a free 55 gallon drum, which I am hoping is steel. It is from "Coombs Family Farms" and contained organic maple syrup so one can assume it is ok for food. My only question is I can't seem to figure out what it is actually made of. It looks like it could be steel or carbon steel. Any other ideas? Just don't want to risk a big batch on it if it's not ok at high temps. Any other potential uses? Thanks everyone