To ensure that your candle burns optimally, please observe the following instructions: Avoid moving the candle while it is burning and do not place it in a draught, on glass, marble or any other heat sensitive surface. Check that the wick is centred when you blow out the candle. Re-centre it if necessary when the wax is liquid. Shorten the wick by 1/2 cm before relighting the candle. The candle should not be lit for more than 3-4 hours in a row. To protect the glass, do not burn the candle to the end, leave at least 1cm of wax. Never leave the candle unattended and keep it out of the reach of children, curtains and pets.