Our Team

Jeff Pisoni


Jeff loves making wine—and considers himself a lifelong student of enology. It’s the craft that his father inspired him to explore, study and pursue since he was just a toddler. Through his role as a winemaker, Jeff developed a passion for exchanging information and insights with the winemaking community, all with the goal of driving for higher quality wine and methods. This is the inspiration from which he and his family established Gravity Wine House in Sonoma County.

Caroline Davis

Caroline Davis

Director of Winemaking

Caroline Davis, our Director of Winemaking, is also Associate Winemaker at Pisoni. A devotee of the sciences since childhood, starting with a love of space and astronomy, Caroline feels fortunate to have come across the science of wine while studying Biology at Pomona College. This led Caroline to earn her Master’s in Viticulture and Enology at UC Davis. Her training and work as winemaker serve her beautifully at Gravity, where she wears many hats—selecting new clients with care, liaising with existing clients throughout the production process, heading laboratory development, and supervising large scale logistics. A quick study, Caroline manages operations at Gravity with a sense of discovery and aplomb.

She continues to enjoy learning new skills. A seasoned traveler, she has worked harvests at wineries from a small Grand Cru in Burgundy to a large commercial facility in Australia. At home, she is learning woodworking and welding and spending time with her dog, Bear.

portrait of Jose Arreola, lead bottling tech at gravity wine house in santa rosa california

José Arreola

Lead Bottling Technician

As the Lead Bottling Technician here at Gravity Wine House, José is the eyes and ears on our mobile bottling line. With nearly twenty years of experience both in cellars and on bottling lines, he can pinpoint a problem just by listening to bottles pass through the sparger, filler, corker, and countless other components of the line. In this sense, we view José as the grand conductor of a bottling orchestra, ensuring all pieces and parts move and work together in harmony. He thrives in fast-paced environments and loves collaborating with customers on their specific bottling needs.

A Sonoma County native, José grew up among vineyards in Cloverdale, California. When he’s not on the bottling line, he can most likely be found with his family, cruising on a boat at Lake Sonoma or enjoying a live soccer or basketball game.

Image of Miguel Ramirez, Cellar Lead at Gravity Wine House

Miguel Ramirez

Cellar Lead

Cellar operations take place as a team, and every team needs a leader. Miguel Ramirez is the Cellar Lead at Gravity and enjoys the dynamic and collaborative winery environment. Over twenty years of experience give Miguel credentials for this role, but it’s his thoughtfulness and focus that keep the team moving forward with efficiency and innovation. Hailing from the town of Mariscala de Juarez in Oaxaca, Mexico, Miguel began working at a young age with his father, a contractor. He absorbed the value of learning diverse skills that now benefit him in wineries. Fervently driven to excel, Miguel’s favorite aspect of Gravity is that nothing is routine. All wines crafted with different winemaking means new challenges and experiences each day.

Leading a team comes naturally to Miguel, partly credited to his life-long hobby of soccer. Today his hobby is sharing the love of that sport with his five children—along with passion for teamwork and family.