For best results with any candle, always clip the wick down to 1/4 inch.
Handy tips:
If a carbon clover leaf forms, just remove it with a kleenex by pinching the wick with your fingertips and pulling upward. This will allow for very clean burning everytime!
If you have trouble lighting a candle when it's down to the bottom, just light the end of a raw spaghetti noodle and use that to light it. Our candles do burn to the very bottom so there is very little wasted wax!