This is a new wine from Agustin Huneeus, of Quintessa. It's made largely from grapes off the Rutherford estate, and contains one-quarter Sémillon. Oak does not play a significant role, although the lees do. The wine itself is absolutely dry, crisp and minerally. It has palate-stimulating citrus flavors and is extraordinarily refined. Its only peer in Napa Valley is Mondavi's Tokalon Fumé Blanc.