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Clos du Bois

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Clos du Bois is located in the town of Geyserville in the Alexander Valley AVA. They produce a wide range of both red and white wines including the Proprietary Series, Appellation Reserve Series, and Classics.

Erik Olsen has been the winemaker at Clos du Bois since 2003. His impressive educational background includes a BS in Fermentation Science from UC Davis, a MS in Food Science from Cornell University, and an MBA from the University of Washington. The Clos du Bois Proprietary Series encompasses Olsen’s best wines.

The 2003 Briarcrest Cabernet Sauvignon is made with grapes from well-drained, benchland vines. The grapes were harvested at 25.3 Brix making a wine with 14.5% alcohol. It was aged in French oak barrels for 24 months before bottling.

The winery’s 2004 Calcaire Chardonnay is made with grapes from several premium Russian River Valley vineyards. It was aged on its lees in small French oak barrels and underwent malolactic fermentation. This wine won the Gold Medal at the 2006 Sonoma County Harvest Fair.

The 2003 vintage of Clos du Bois Marlstone marks the 25th year the winery has been making this wine. It is a classic red Bordeaux blend of Cabernet Sauvignon, Merlot, Cabernet Franc, Malbec, and Petit Verdot.


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