You must make sure you burn the candles a minimum amount of time. One hour for every inch in diameter is good. This way you will get the most use out of your candle. I checked the following website earlier for candles. They are wonderful, but the website is down so I'd contact email if interested. I've personally used these candles and you will not be disappointed! ( www.mygccandle.com/scentthisway) email: byhisgraceandpower@yahoo.com