I have made 6 soy candles. I burned one to test it before I gave/sold it to anyone. Then I gave three away for testing/advertising. I noticed a couple days ago that the two that I kept had started to get a little white around the edges. Now it is getting a little darker, but is still white and not as pretty as I would like them to be when I sell them. Does anyone know what I did wrong? Or where I might go to get answers?