I sent them an email to see if theirs was pure:
https://secure25.securewebsession.c...ry.com/LodiWineLab/products.asp?category_id=6
http://shop.texasnaturalsupply.ieasysite.com/productinfo.aspx?productid=NAPER
https://secure25.securewebsession.c...ry.com/LodiWineLab/products.asp?category_id=6
http://shop.texasnaturalsupply.ieasysite.com/productinfo.aspx?productid=NAPER