air bubble after burning

I'm new to the candle making biz and my candles are turning out great, then I burn them everything is good the flame and everything but after they cool they are getting air bubbles in them and the coloring is lighter at the top where they were burned and I don't know what to do :?


air bubble after burning

Hi,
We once had the same problem with air bubbles. I switched to a different wax(was using nature valley, switched to ecosoya) and poured more slowly and only heated the wax to the manufactures recommended temp. Any one of these might help. I have read some people tap the container to release air bubbles. Others insert a thin dowel near the wick before the candle has set up solid and then do a repour or just heat the top to smooth out. Adjusting your pour or room temp helps with a lot of problems too.
As far as I know, it is normal for the wax to be a different shade after it has melted and hardened again. It does not effect the candle burning. Happy and safe candle making! redmaple