1. Light your candle in a well-ventilated room, away from draughts or fans, which can cause sooting (black marks on the vessel), or rapid, uneven burning. Place on a heat resistant surface, the base of the candle will get hot.
 
 
2. Burn regular-sized candles for one and a half to two hours at a time or until the wax has pooled to the edges. Burning for less time can cause the candle to 'tunnel', which leaves a build-up of wax around the vessel's sides and can reduce the maximum burn time. Burning for longer periods (over four hours) can cause the wick to move, or slant.
 
 
3. Make sure you stop burning your candle when 10mm of wax remains at the bottom, keeping an eye on a burning candle when the wax is low.

1. Keep the wax pool clear of wick trimmings and matches, as debris in the wax can act as a secondary wick, encouraging your candle to burn faster.
 
 
2. After extinguishing the flame with a snuffer, centre and straighten the wick. Burning for too long can cause the wick to move, or slant. If you see a flaming wick come close to the vessel wall, extinguish the flame and straighten the wick to prevent the vessel from cracking.