Beeswax is a crude wax produced by bees while paraffin wax is petroleum based wax. Petroleum is used to make oil and gas. When the wick are properly trimmed, the beeswax ear candles burn very clean and produce hardly any soot. Paraffin wax for candle can produce much more smoke because all organic compounds emit some carbon due to incomplete combustion. Beeswax burns at a higher temperature than paraffin, and thus produces less soot.