Candle Wick LengthA candle wick should be approximately five millimetres or one quarter of an inch from the candle wax to the top of the wick.There are different candle wicks available, cotton or wood but the five-millimetre advice is the same for all wicks.You can use scissors to trim wicks, but for the best results use a purpose designed candle wick trimmer to trim your wick.We also suggest that the wick should be trimmed every 4 hours of candle burn time. Read more, Click here...