Trebbiano, which is another name for Ugni Blanc, is only slightly behind Airen in land usage. Because Trebbiano vines are able to be planted much more closely together than Airen, Trebbiano is thought to produce more actual wine than any other wine grape in the world.
Trebbiano is commonly used as a base for Brandy, but is also a typical table wine in many parts of Italy and France. It is sometimes used as an ingredient in Chianti, but nowdays fewer and fewer Chianti makers are using trebbiano in their blends because of its low quality.
Because of the high acidity Trebbiano is an important grape in the production of Cognac. If the Cognac is to carry the “Crus” name it must be made with at least 90% Ugni Blanc.