I'm in Australia and just used these melts for the first time (I bought them online). I am planning on making cake pops with them, but just melted a small handful of the green to see how they went. Everything was going smoothly until I left it to re-set. I've found that the green has ended up with a speckled white film on it. Does anybody know what this is, and how I can avoid it??? Also, how runny do they get when they melt? As I said I am making cake pops and was under the impression that the melts would go quite runny, but they are far from being runny - definitely melted and smooth, but not runny! Thanks!