6% acidity. Sistema Foglie Three Leaves. Aceto Balsamico di Modena IGP: Roland Balsamic Vinegar of Modena adheres to the strict product certification established by the Associazione Assaggiatori Italiani Balsamico (AIB). AIB's four grape leaves grading system both informs and guarantees quality levels, so now you can be certain of the graded balsamic vinegar you select. How to read the four leaves: four leaves: superbly lush & intense. Syrupy with complex flavors & heady aroma. Three Leaves: smooth, full-bodied taste. Polished finish with tangy accents. Two Leaves: round & spirited. Brisk & vibrantly balanced. One Leaf: light in flavor & consistency. Sweet with a sharp aftertaste. Visit us at Bottling site n degree CSQA 210843 certified by control body authorized by Ministero delle Politiche Agricole Alimentari e Forestali. Product of Italy.