Can I re-use the 8 oz. tins? If so, what is the best way to clean them out? Perhaps a heat gun? Can the tins be used on those candle warmers? And finally, I'm using 4786 wax, are there certain FO's that I shouldn't use? I've noticed that some FO's have a flash point of like 135 degrees. If I need to melt my wax to at least 170 degrees, how does that work? Probably a stupid question, but I don't want to start a fire or anything:confused: By the way, I'm using the double boiler method on a gas stove. Thanks!