About O'Shaughnessy Estate Winery
O'Shaughnessy Estate Winery is the most personally Irish-heritage-named and dual-terroir-comparatively-educational luxury Napa Valley Cabernet Sauvignon appointment. Betty O'Shaughnessy — whose Irish-American heritage inspired the estate naming and whose personal quality conviction led to sourcing from both Howell Mountain's volcanic basalt above-fog-line terrain and Oakville's warm calcareous benchland — produces Cabernet Sauvignon of dramatically contrasting character from two of the Napa Valley's most individually distinctive sub-appellation growing environments.
The Howell Mountain estate Cabernet — from volcanic basalt above-fog-line terrain that produces the most structurally intense and most age-demanding mountain character available in the Napa Valley — provides one pole of the O'Shaughnessy comparative terroir education. The Oakville benchland Cabernet — from the warm, alluvial benchland that produces the most food-first and immediately generous Napa Valley Cabernet character — provides the complementary valley floor expression for the most personally dual-terroir-mountain-and-valley-comparatively-educational luxury Napa appointment.
Wine Advocate has consistently scored both the Howell Mountain and Oakville expressions at 93–97 points, confirming that Betty O'Shaughnessy's most personally Irish-heritage-named and dual-terroir-comparatively-ambition-driven luxury Napa Valley appointment produces Cabernet of genuine critical quality from two dramatically contrasting Napa Valley growing environments.