Before you light your candle, ALWAYS trim the wick. Wicks that are not trimmed will cause black soot when it burns as well as a very high flame. Remove any debris left in the wax pool such as wick trimmings or matches. The first burn is the most important to prolong the life of your candle. Make sure you burn for at least 2 hours to get an even wax melt from edge to edge. If you don't, then your candle will create a memory ring and will only ever burn the width of that first burn, or tunnel as its know by. Candles should be snuffed out after 4 hours. Keep your candles away from anything flammable and out of reach of children and pets. Louna Rose is NOT responsible for the misuse of your candle.