Sarah Wuethrich
Winemaker
Sarah Wuethrich has forged a remarkable path in winemaking, driven by passion and expertise. Originally from Cupertino, California, her journey began when her father encouraged her to take an enology class during her studies at the University of California, Davis. After graduating with a degree in Viticulture and Enology in 2001, she launched a career that would lead her to the vineyards of Sonoma County.
She refined her craft at renowned wineries like St. Francis and Lambert Bridge, developing technical precision and a deep understanding of winemaking. At Nakedwines.com, she co-founded a wine label showcasing lesser-known Portuguese grape varieties from overlooked California vineyards. In 2010, she joined Copain Wines as an Assistant Winemaker, where she spent seven years immersed in minimal intervention, European-style winemaking focused on Pinot Noir and Chardonnay.
In 2017, she became a Winemaker at Maggy Hawk, where she crafts single-vineyard wines from Anderson Valley. She also leads winemaking for WindRacer, a boutique label showcasing the diversity of Chardonnay and Pinot Noir from Sonoma’s coastal and inland regions. Beyond these roles, her expertise has been instrumental in shaping the portfolio of other esteemed Jackson Family wineries, including La Crema, where she played a pivotal role in creating the new Russian River Valley Marsanne Roussanne blend.
The North Bay Business Journal recognized Sarah with the 2023 Women in Wine Award: Excellence in Winemaking and the 2024 Women in Wine Award: Sustainability. She earned her MBA in 2025 from the Sonoma State University Wine Business Institute, further strengthening her leadership in sustainable and innovative wine business practices. Sarah’s work goes beyond crafting exceptional wines—it reflects a deep commitment to sustainability, innovation, and leadership in the wine industry. As an active member of the regenerative farming committee at Jackson Family Wines, she champions forward-thinking agricultural practices to combat climate change and shape a more resilient future for the next generation of winemakers.
Mario Espinoza
Vineyard Manager, Maggy Hawk
Mario Espinoza was born and raised in Michoacan, Mexico, surrounded by his parents, 5 brothers and a sister. His father worked in the logging industry, and moved the entire family to Anderson Valley from Mexico in the late 1970’s.
Mario grew up in the small town of Boonville. After a brief time back in Mexico to attend high school, Mario returned to the Anderson Valley and was in search of a summer job. He ended up taking a job at the esteemed Ferrington Vineyard, where he worked on the vineyard team for three years tending to Sauvignon Blanc, Cabernet Sauvignon, Pinot Noir, Riesling and Chardonnay.
In 2001, after having gained many years of experience in the valley and with several of the Jackson Family Wines vineyards, he was recruited back to the team, this time as a Vineyard Supervisor with responsibilities to oversee all Anderson Valley vineyards. One of his first projects in this role was to help plant the newly formed Maggy Hawk Vineyard followed by the Skycrest Vineyard. He was instrumental in the development of these two vineyards that showcase high elevation Chardonnay diverse Pinot Noir.
The Maggy Hawk Vineyard is near and dear to Mario’s heart. When asked what he loves most about Maggy Hawk, he says “the views and the surrounding environment are beautiful… and it has the best weather.” Mario’s wish is to keep the original vines at the Maggy Hawk Vineyard as long as possible.
Having grown up in Anderson Valley, Mario has seen a lot of change. “This used to be a small, quiet little town. But now it feels happier, there’s more life here.”
Of the wines in the Maggy Hawk line-up, Mario enjoys the Unforgettable Pinot Noir. When not drinking the Unforgettable, you’ll find him sipping a cold beer from the Anderson Valley Brewing Company.