Did you know that by keeping the wick trimmed to 1/4 an inch, your candle will last longer and burn cleaner!? Every time you re-light your candle, trim the ‘mushroom’ off that forms on the tip of the wick. This will prevent the black particles from falling down into your candle. This wick trimmer is specially designed with a tray that catches the wick particles and cuts the wick evenly (unlike scissors that trim the wick on an angle). If burning your candle for several hours at a time, trimming the wick is encouraged during burning to keep the candle cool and clean.