The “Riserve” are the most exclusive of the Giusti collection, produced each year in extremely limited quantities. They are extracted from some precious series of barrels, which have been in production since 1700’s. One of these barrels, coded as “A3”, was brought by Giusti to the National Fair of Florence in 1861, where a 90 years old Balsamic Vinegar was awarded a gold medal, a recognition successfully repeated at the Expo in Paris in 1889.