Proper maintenance of your soy candles will ensure the best possible burn & burn times. Candles should be burned for up to 4 hours at a time & trim the wick to 1/4" before burning. Lastly, once lit be sure to not extinguish the flame until the entire top layer of wax is melted (this is called a "melt pool" and allows the candle to burn evenly the whole way down).