Bionaturae Organic Balsamic Vinegar is made by one of Modenas oldest family of producers, who for generations has preserved the antique traditions that make balsamic vinegar so unique. In keeping with tradition, our vinegar is made from Trebbiano and Lambrusco grape must, and has a distinct sourly, sweet flavor. Acidity 6 Percent Protected Geographic Indication to ensure consistency and continuation of its century old tradition No additives or preservatives. Contains only naturally occurring sulfites. Certified organic