How To Trim Wood Wicks. Extinguish the flame and let the candle cool down to room temperature. Here's how to properly trim a candle wick:

Extinguish the flame and let the candle cool down to room temperature. Trim the wick to a height of ¼ inches above the wax. Using a wick trimmer or other cutting tool, bring the blades towards the wick as parallel to the wax as possible.