One of the most eco-friendly benefits of 100% soy candles is how clean they burn. Soy wax produces minimal amounts of black soot in comparison to typical paraffin candles. The soy used in Makes Scents soy candles is grown in American fields and processed into wax in the United States (US) as well. Makes Scents candles also use earth-friendly, zinc-free wooden wicks which are made in the US. Wooden wicks burn clean because they do not contain soot-producing zinc and also produce an even burn and flame that crackles like a real open fire. Our soy candles are packaged in 10 ounce recyclable frosted glass jars with lid.