Always let your candle burn for long enough so that you have a complete melt pool of wax across the top layer. This could take 3-4 hours for the first burn, but less for proceeding burns. Trim wicks to 5mm prior to burning….to extend the life of your candle. The neater the wicks, the longer the candle will last. Never blow out a candle…….use a wick snuffer or dipper. Blowing out a candle can cause part of the wick to fall into the melted wax, and can sometimes cause the wick to break off shorter than 5mm.