Sardinia is the second-largest island in the Mediterranean and lies roughly 190 miles west of Italy's mainland. The vineyards of Argiolas are located in Serdiana in the Trexenta hills just north of the capital of Cagliari. Argiolas farms 600 acres of native Sardinian grapes including Nuragus, Monica, and Cannonau.

Costamolino, named for the area, is made from Vermentino, an aromatic white grape variety that thrives in the Mediterranean climate of Sardinia. The grapes are harvested in August and September and vinified in stainless-steel tanks to retain acidity. A small percentage sees malolactic fermentation to give the wine roundness and texture.