Soy candle wax is non-toxic and burns cleaner than paraffin, no petrol-carbon soot that adds toxic carcinogens in the air we breathe. They are longer burning(approximate 20 hours) and more efficient than paraffin. Soybeans are a renewable resource and biodegradable. This vanilla scented wax filled in a beautiful glass provide you with relaxation. Note the printing ink on glass can not be baked, the print may not hard as baked.