A Wax Primer
Paraffin wax is the most common type of wax used in decorative candles today. This highly refined, petroleum by-product is formulated for safe use indoors. The appearance of paraffin can be smooth or mottled (mottled wax has a rustic, handcrafted appearance) and the color range is rich and intense. Paraffin wax is an ideal way to provide an amazing fragrance experience.
Natural waxes come from plant or vegetable based materials. One hundred percent soy wax candles and soy blend candles are the most common. Several industrial processes are required to process this biodegradable, renewable resource wax. One hundred percent soy wax is very soft and is typically only available in jar candles. Colors tend to fall into the softer hues and unlike paraffin, have a reduced color range. Soy wax blends can have a variety of characteristics and appearances depending on the other waxes in the blend. Soy wax combined with paraffin wax provides the positive characteristics of both.
Wax, the candle's fuel, is the largest component of a candle. Below is more information about wax from the National Candle Association's web site. For more information please visit http://www.candles.org/elements_wax.html
No specific type of wax or wax blend is considered "best" for candle making. All candle waxes - when provided in high-quality format - have been shown to burn cleanly, safely and in the same manner.
There is no such thing as a soot-free wax. All organic compounds when burned will emit some carbon (soot) due to incomplete combustion. The amount of soot produced is primarily a factor of wick length and flame disturbance.
Reputable candle manufacturers use only high-quality waxes in their formulation.