I'm new to making candles and have had some frustrating experiences with trying to find the right size wicks. After careful research, I learned that the choice of wick you use depends on the size of your candle jar. I use 1 ECO 10 wick for a 3" status jar and they work perfectly. In the past, I used 16" wicks which was creating too much soot and a large flame. They were too big for a 3" jar. Now, I humbly say that people love my candles so much thaat I've been asked to be a vendor for a women's conference. Thank you CandlesScience! My advice is to do your research and test, test, test your candles. Good Luck!