Our Soy candles are clean burning and long burning! 16 oz. These are so fragrant excellent scent throw!Tips: Light when you an burn at least  2 hours to encourage even burn down.Douse wick in melted wax instead of blowing out candle ... this will prevent any wick smoke and promote clean jar through entire candle life. Trim off “mushroom” top before re-lighting so candle wick doesn’t smoke.