Keep the wick trimmed to 1/4 inch at all times. It is suggested to trim the wick every 4 hours of burn time. When wick trimming, you should always extinguish the flame, let the candle come to room temperature, and trim the wick beforerelighting.
If you burn your candle for more than 4 hours at a time, carbon collects on the wick, and it begins to “mushroom.” This causes the wick to become unstable, the flame gets too large and your candle smokes too much, which releases that dangerous soot into the air and all collects all around your candle container.