Two grapes wear one name across a border. In central Italy, Trebbiano Toscano is a high-yielding, neutral white folded into oceans of everyday wine and into the base of Vin Santo; carried to France as Ugni Blanc, the very same variety became the most planted white grape of the country — not for the table but for the still. Its thin, searingly acid juice is the ideal raw material for distillation.
That double life makes it one of the most widely grown white grapes on earth while remaining almost invisible on a wine list. Trebbiano is the workhorse behind Cognac and Armagnac, the neutral spine of many an Italian blend, and a reminder that a grape's importance is not always measured in fame.