Are you using Brown Sugar? I do notice some smell in some sugars. Definately Brown Sugar, and I have had Turbinado and Demera that had and odd smell before, seems different suppliers sugar can be lighter or darker and have a tad different smell to them. But I dont' notice any smell really with white sugar, maybe you should try the white sugar then you could possibly try and narrow down the culprit. It could also be the fragrance oil you are using just has a funky note, Maybe Candlescience Strawberry is better for candles, I have it but havent' tried in Bath and Body. I use Oregon Trails for B& B Strawberry Or is it possible one of your oils has gone rancid without you knowing, this would give an odd smell also. If you are using Demera or Turbinado it could be that I do notice a bit of smell from these