Soy is better for your health: it burns safer, cleaner, cooler, longer and produces as much as 90 percent less soot than paraffin. The emissions from paraffin candles build up on walls, staining the paint in your home. They also build up in upholstery fabrics and in carpets, affecting the air quality in your home.Soy is sustainable: Unlike paraffin, which is derived from oil, soy is a renewable resource. Soy is biodegradable so if it spills on your tablecloth or clothing, it's a lot easier to clean than paraffin. Soy helps U.S. farmers: The United States is the number one producer of soy in the world, so when you buy soy products, you're supporting American farmers.