When first burning your candle, let the melted wax reach the edge of the jar. This should take between 2 to 4 hours depending on the size of the jar. This helps prevent your candle from tunneling or not melting all the way to the edge on future burns. After that, we recommend burning your candle no longer than 4 hours at a time (2 hours for the minis due to their small size!) for the best quality and to make your candle last the longest! Once there is 1/4" to 1/2" of wax remaining, it's time to switch to your next Flameworks Apothecary candle!