One of the curiosities of Cannonau is its link to the longevity of Sardinians, many of whom live to be over 90 years old. Cannonau has an unusually high level of antioxidants which come from compounds found in the skins of the grapes.he wine displays a deep ruby color. The very perfumed nose exhibits aromas of violets, blueberries and a touch of spice. It is very balanced showing blackberries, licorice, lavender and finishes on fine tannins and good minerality.