Bionaturae Organic Balsamic Vinegar is made by one Modenas oldest family of producers, who for generations has preserved the antique traditions that make balsamic vinegar so unique. In Keeping with tradition, the vinegar is made from Trebbiano and Lambrusco grape must. Bionaturae uses only certified Organic grapes. Enjoy the distinct, sourly sweet flavor of their balsamic vinegar along with bionaturae Organic Extra virgin Olive Oil. Although naturally occurring sulfit's are present in grapes, they add no sulfit's or other additives to this product.