To extend the lifetime of your candle:
1) Before lighting your candle, straighten out the wick and trim the wick to 1 cm.
2) Every time the candle is lit, it is preferable to make the wax melt over its whole surface before extinguishing it.
3) Avoid exposing to drafts. Never burn the candle completely. Dispose when 1 to 2 mm of wax remain in container.