Corison Winery

Cathy Corison established her eponymous winery in 1987 after nearly a decade of winemaking experience at notable Napa Valley properties, becoming one of the first female winemakers to launch her own venture during an era when the role was predominantly male-dominated. Her founding philosophy centered on the belief that great wine begins in the vineyard, emphasizing site-specific viticulture over cellar manipulation—a contrarian approach in 1980s Napa that prioritized restraint and elegance over power and oak. The acquisition of Kronos Vineyard in 1993 allowed Corison to move from purchased fruit to estate-grown production, enabling the meticulous viticultural control that has become her signature.

• Pioneered minimal oak regimens (16-18 months in 50% new French oak) when Napa Valley was trending toward 100% new wood
• One of the first Napa producers to embrace native yeast fermentation as standard practice
• Maintained strict yield limits (3.5-4 tons/acre) in Kronos Vineyard to concentrate flavor while preserving acidity
• Mentored multiple generations of winemakers through extended apprenticeships, influencing Napa Valley's technical evolution

Kronos Vineyard's 40 acres in Rutherford sit on the valley floor with gravelly, well-drained benchland soils characteristic of the appellation's finest sites. The vineyard's east-facing aspect and morning fog protection create ideal conditions for Cabernet Sauvignon maturation, allowing natural acid preservation while achieving optimal phenolic ripeness. Corison employs organic and sustainable practices, including cover cropping and minimal intervention in the vineyard to maintain soil health and microbial complexity.

• Rutherford AVA's distinctive gravelly loam and gravel soils impart mineral precision and age-worthiness
• Strict harvest protocols: hand-picked fruit, sorted by ripeness level, and destemmed/crushed on a case-by-case basis
• Diurnal temperature swings of 30-40°F preserve natural acidity critical to Corison's signature wine style
• Estate vineyard planted to field selections of Cabernet Sauvignon clones 6, 169, and 337 for complexity

Corison's cellar approach is defined by restraint, transparency, and a deep respect for fruit character—she employs native yeast fermentation, minimal filtration, and purposefully modest oak influence to allow Rutherford terroir expression. Fermentation typically occurs in open-top wooden vats with foot-treading rather than mechanical punch-downs, a labor-intensive method that ensures gentle extraction of tannins. The resulting wines are medium to full-bodied with silky tannin structures, pronounced acidity, and layered complexity that reveals secondary characteristics after 5-15 years of age.

• 16-18 months in French oak (50% new, 50% neutral) versus Napa Valley average of 24+ months in majority new wood
• Natural malolactic fermentation in barrel creates integrated acidity and subtle complexity
• Bottled unfined and unfiltered, allowing natural sediment development that many collectors view as marker of quality
• Average cellaring potential: 20-30+ years for flagship Cabernet, with graceful evolution rather than dramatic transformation

Corison Winery has achieved remarkable consistency in critical evaluation, with the flagship Cabernet Sauvignon earning 93+ point ratings from Parker, Advocate, and Spectator for over fifteen consecutive vintages—a rarity in Napa Valley. The winery has received multiple 'Best of Issue' selections from Wine Advocate and maintains a devoted collector base willing to allocate significant premiums for current and library releases. Cathy Corison's influence extends beyond her own wines: she mentored prominent winemakers including Julien Labet and others who have adopted her minimalist philosophy.

• 2019 Cabernet Sauvignon: 95+ points (Parker), $115 retail; 2018: 94 points (Parker); 2017: 95 points (Advocate)
• Allocation-only wines; pre-release list typically sells out in advance of bottle release
• Library of back vintages (1998-2012) demonstrates aging trajectory: recent tastings show wines at peak complexity
• Recognized as pioneer of female winemaking excellence and technical mastery in Wine Spectator's 100 Most Influential Women in Wine

The cornerstone release is Corison's single-vineyard Cabernet Sauvignon from Kronos Vineyard, representing the culmination of site-specific viticulture and minimalist winemaking. Occasional limited releases of premium library selections and special bottlings (such as the 'Napa Valley' Cabernet in certain vintages) showcase vintage variation and aging development. The winery's total production ensures quality control but creates scarcity that has driven secondary market appreciation.

• Kronos Vineyard Cabernet Sauvignon (primary offering): current vintage typically $85-120, allocation-based
• Exceptional recent vintages: 2019 (95 pts, muscular yet elegant), 2018 (94 pts, structured), 2017 (95 pts, aromatic complexity)
• Library releases from 2000s-2010s offer collectors evolution study: 2007 and 2012 considered benchmark Rutherford expressions
• Special releases and single-barrel selections occasionally available through mailing list, often commanding 30-50% premiums

Cathy Corison's technical publications, speaking engagements at UC Davis and industry conferences, and mentorship of emerging winemakers have significantly shaped Napa Valley's evolution toward minimalist, terroir-focused winemaking. Her advocacy for native yeast fermentation, minimal filtration, and restrained oak usage influenced a generation of winemakers to question conventional Napa paradigms established in the 1980s power-wine era. The winery serves as case study in WSET Level 3 curricula for sustainable, quality-focused small production winemaking.

• Published research on native yeast fermentation in Cabernet Sauvignon and malolactic bacteria adaptation in warm climates
• Guest lecturer at UC Davis viticulture and enology program; mentor to numerous harvest interns who later established their own programs
• Philosophy directly influenced similar producers: Staglin, Caymus, and Schramsberg adopted variations of her minimal-intervention approach
• Recognized as technical authority in Napa Valley's sustainable agriculture and biodynamic certification movements