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Our winemaking philosophy at Keller Estate is simple: respect our vineyards' terroir.

Ana Keller finalized her biochemistry studies before deciding she would turn her attention to winemaking: Biochemistry was her way of getting closer to her passion for plants. Since the beginning, Ana Keller has worked ardously at defining the true nature of the Estate. Being one of the few true exclusive estates in Sonoma ensures that the wines are consistent.  By fine tuning each parcel, we create a legacy for generations to come. 

Alex Holman completes the winemaking team. Born and raised in San Francisco, he earned a Bachelor of Science degree in chemistry from Fresno State. After a few years as a chemist, he turned his hardworking, analytical focus to winemaking. Ana and Alex share the philosophy that a holistic, minimalist approach in winemaking is the best way to create distinctive, elegant wines that highlight the diversity of terrior within the estate. Even though Ana and Alex possess science-based backgrounds, they believe that truly great wines are created from the ground up. They judiciously use cutting-edge winemaking technology to gently polish and refine the wines only when necessary. It is this combination of shared experience, minimalist winemaking philosophy and passion for excellence that makes them a remarkable team. 

The state-of-the-art winery at Keller Estate was designed with gravity flow features that allow us to be gentle with the wine.  Two tanks on hydraulic lifts raise and lower as needed to drain tanks and fill barrels. Our bottling tanks are located on an elevated tank pad which allows us to fill barrels without pumping the wine. 

Yet with all the technology available today, we’ve learned that the most important task, and sometimes the most difficult one, is to do nothing - nothing but respect the fruit, the vineyard and the wines themselves.