So I am trying to make rock candy. I made my saturated solution of sugar about two and a half days ago and so far there is almost no crystallization on the skewer that I have sitting in the middle of the solution. But there is a layer of sugar crystals covering the top. Should I break that top layer so that there could be evaporation? I don't see how it is going to crystallize if nothing evaporates. If I am wrong, please correct me.