I found this on the web: "The molecular structure of soy wax contains various types of chemical bonds that make it harder to break down than paraffin wax. Its structure is more prone to trapping scent, than allowing it to evaporate freely. It takes more heat to break down these chemical bonds, therefore, you will need to use hotter burning wicks when making soy candles. Try increasing your wick size. Also, we suggest that you use 1.5 ounces of fragrance per pound of soy wax with the majority of our fragrances. If you are still not happy with the scent throw of your soy wax candles, consider using a soy/paraffin blend wax."