I have problems with wet spots as well. The other day I was pouring test candles and one jar I was re-using. I had just got done melting the old wax out of it and dumping it. I just wiped the jar out and it left a wax residue from the old wax. I didn't care at the time since the candle is for me and testing. Out of the three candles I poured this one was the pretties and No wet spots and has stayed that way. So I am going to test pour a few more and wipe some wax on the inside. Maybe something you would want to try. Suzanne