So what Saltfishes link is saying is that hot water appears to freeze first because of the temperature differntials, but it will not actually become solid ice faster, but slower. So if you want to say create ice cubes, use cold water because it will form solid ice quicker. Less ice is formed by hot water in the same period of time, it just appears first. So no, hot water does not actually freeze faster, it just appears to. Don't let appearances get in the way of logic.
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