Trim both wicks to 5 mm before each use. Allow the wax to melt evenly to the edges, and burn for no more than 4 hours at a time. Stop using when 10 mm of wax remains.
Never leave a burning candle unattended. Keep away from children, pets, draughts and flammable materials. Use a stable, heat-resistant surface. Allow the candle to cool before handling; never move it while burning or while the wax is hot.