Nature's Promise® Organic Balsamic Vinegar of Modena. USDA Organic. Protected geographical indication. 6% acidity. 16.9 fl oz (500ml). 15 calories per 1 tbsp. Certified by control body authorized by Ministero delle Politiche Agricole Alimentari e Forestali. 1-877-846-9949. Certified organic by CCPB Srl. ©2015 Ahold Licensing Sarl. Quality guaranteed or your money back.