To enjoy your candles to their fullest, a little care is required. Keeping their wicks 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 temp, then trim to 1/4". That length helps reduce soot - this is where our wick trimmer comes in. Enjoy your candles!