To enjoy your candles to their fullest, a certain amount of care is required. Keeping their wick trimmed properly will help your candles burn fully and last longer. Specifically, your candle's wick should be trimmed after every 4 hours of burn time. Let the candle come to room temperature, then trim the wick to 1/8-inch before relighting. That lengths help create complete combustion, which means less soot is formed while the candle is burning. This is where our Perfect Wick Trimmer comes in - place the bottom of the trimmer flush with the candle surface, rock the trimmer back so that its "elbow" rests on the surface, this keeps the trimmer at the 45-degree angle and helps ensure the cut is to the proper length. Simple! Enjoy your candles and their fragrances, then repeat again after every 4 hours of burn time.