6% acidity. Sistema Foglie: 3 leaves. 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 and heady aroma. Three Leaves: Smooth, full-bodied taste. Polished finish with tangy accents. Two Leaves: Round and spirited. Brisk and vibrantly balanced. One Leaf: Light in flavor and consistency. Sweet and with a sharp aftertaste. Visit us at www.rolandfood.com. Specialty foods. Product of Italy.