81% Cabernet Sauvignon, 8.5% Petit Verdot, 5% Cabernet Franc, 4.5% Merlot and 1% Malbec. Opus One was founded in 1979 when two of the world’s most famous wine families began producing wine from their joint venture in Napa. Robert Mondavi and the Baron Philippe Rothschild of Mouton Rothschild became friends back in 1970. Less than a decade later, using parcels from Mondavi’s To Kaylon vineyards they created a wine that became an instant hit with wine lovers in American and in Europe. The first parcels of land for Opus One came from 35 acres of vines already owned by Robert Mondavi, located in the famous Q block of the To Kalon vineyards. To produce the wine of Opus One, with 50 fermentation vats, the estate vinifies each parcel in its own tank, which allows for much more precision in their wines. The fermentation vats are elevated, allowing the juice to move by gravity. The wine of Opus One is then aged in new French oak barrels for close to 20 months. The goal of Opus One is to make California wine in a less exuberant, fruit-forward style. In many ways, the wine would have more in common with Bordeaux wine. In the world of fine wines, Opus One has no equal. Its emblematic blue label tells the story of the union between two visionaries, the merger of two dynasties to produce one iconic wine: a Bordeaux-style Grand Vin from the greatest terroirs of Napa.