Soy what? When burning candles around the house, be sure to choose clean-burning soy candles. Traditional candles are paraffin-based, which is made from non-renewable petroleum; when burned, it emits soot and smoke into the air, polluting your indoor air. Yuck! Soy candles are a much cleaner choice and made from -- yep, you guessed it -- soybeans! They're easy to find and here's the best part: They burn longer than paraffin candles, so you get more soothing scents for your cents.