What it is: A scented candle housed in a dark-colored glass vessel that's a beautiful focal point for any room. Fragrance story: An irresistibly warm and smoky scent of burning wood reminiscent of a winter day huddled by the fire radiates a mysterious yet comforting fragrance. How to use: The first time you burn your Diptyque candle, allow it to burn for at least two hours until the whole top is liquid with wax to help it burn more evenly next time. Before lighting, trim the wick to 1/4-inch length, which will allow the candle to burn slowly and will help avoid black marks around the edge of the glass. After blowing out the candle, recenter and straighten the wick.