Trim the wick to about 1/4" before each use for full, efficient use of wax. On the first burn, allow the melt pool to reach the edges of the jar. This will help to prevent tunneling and give your candle a nice even burn.
Because this is an all natural product when cooling it may look uneven. This will not effect the performance of the candle. Once you extinguish candle and there is no heat, cover the candle to cool. This will assist in the candle cooling evenly.
Do not burn for longer than 3 hours at a time.