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Napa Valley's Schramsberg Vineyards promotes Jessica Koga to Winemaker

Napa Valley's Schramsberg Vineyards promotes Jessica Koga to Winemaker

From the Napa Valley Wine Insider Digest: June 12, 2021 series
  • Updated
Jessica Koga

Jessica Koga is winemaker at Schramsberg Vineyards.  

Napa Valley sparkling wine producer Schramsberg Vineyards has announced the promotion of Jessica Koga to the position of winemaker. Previously, Koga was the associate winemaker at Davies Vineyards, home of the Davies family’s red wines, since 2015. 

“Jessica is an invaluable member of the Schramsberg team, and we’ve watched her grow and excel over the course of her career thus far,” said Principal Hugh Davies. “We’re thrilled to provide her this next opportunity, and to continue to see her positive impact on our vineyards and wines.”

Koga first came to Schramsberg in 2003 as a lab intern, and subsequently held the full-time position of enologist from 2004 to 2007. From 2007 to 2015, she gained varied experience working harvests at Cloudy Bay Vineyards in New Zealand and Bedell Cellars in New York, and held an associate winemaker role at Sonoma's Gundlach Bundschu Winery and an assistant winemaker role at Vineyard 29 in St. Helena.

With an in-depth knowledge of quality winemaking and vineyard and winery management, Koga returned to Davies Vineyards, where she managed red wine production as the associate winemaker. For the past six years she has informed key decisions about harvest, cellar crew management, tank and barrel management, and blending for Davies still wines, as well as finishing activities for Schramsberg’s sparkling wines.

“It’s truly been a pleasure to work with the Davies family for the better part of two decades, and to grow and advance in my career with such an exceptional team,” said Koga. “I’m looking forward to concentrating all of my efforts on crafting our renowned sparkling wines.”

Koga will have many of the same decision-making responsibilities in her new role with Schramsberg, but will now be focused on Schramsberg’s famous collection of sparkling wines. She will manage 350+ base wines through the winemaking process from harvest to bottle, including primary fermentation, racking, fining, malolactic fermentation, and filtering to ensure the utmost quality. She will report to Director of Winemaking Sean Thompson.

Koga has a degree in Viticulture and Enology from the University of California, Davis. She lives in Napa and enjoys cooking, reading, hiking and visiting her family in Hawaii.

Geoffrey Curley films the process of stacking wine bottles in caves at Schramsberg Vineyards. 

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