100% Zibibbo. From very low, bush-trained, organically farmed vines on De Bartoli's estate in the contrada of Bukkuram on the island of Pantelleria. The vines average around 50 years old and are grow in light, sandy volcanic soils in a low-walled, windy clos. De Bartoli makes two dried-grape passito wines--the tradition on the island--one being "Sole di Agosto" and the other the longer-aged "Padre della Vigna". Harvest is manual and conducted in two stages. The earlier one takes place at normal ripeness; these bunches are dried on mats in the sun for two weeks. Several weeks later, riper bunches are harvested, direct-pressed and spontaneously fermented with indigenous yeasts. Then the sun-dried bunches are destemmed and those raisins berries added to the later-harvest wine for a 3-month maceration. The wine is aged for 6 months in oak barrels and released as “Sole di Agosto” ("sun of August”). Even with around 180 grams/liter of residual sugar, it is a lighter, fresher style of sweet wine. In very special vintages, De Bartoli makes the rare “Padre della Vigna”  instead (see our website for details); generally, only one or the other of the two passitos is made in a given vintage.