HOW TO GET THE BEST BURN
The three-wick candle's first burn is the most important; let it burn until the wax pools evenly across the top of the candle. This may take several hours, depending on the size of the candle and the wicks. Let the candle burn until there's an even melt pool across the top of the candle -- every time you light it. If you decide to burn just one wick at a time, still do the first burn with all three wicks -- then alternate between wicks for the single burns, so that you keep the level of wax more or less even across the surface of the candle.