Gala Mountain Vineyard is located east of Napa City, on the slopes of Mount George, at an altitude of 300 meters. The terraced vineyard faces northwest and is exposed to the cool winds from San Pablo Bay. The topsoil is gravelly and well-drained volcanic. The vines, planted in 1992, have deep roots and produce small bunches, which give the wine its structure. The 2.43 hectare Gala Mountain Vineyard was converted from organic to biodynamic farming in 2018 and is cultivated entirely by hand. The grapes were destemmed, fermented in open tanks with indigenous yeasts, and aged for 16 months in old barrels. The production volume is 20 barrels. Alex Pitts, who was an assistant winemaker for the Scholium Project, a pioneer of the California nature movement, became independent and teamed up with Martin Winter, who studied winemaking at Leo Steen and was a sommelier at the three-star Michelin restaurant Meadowwood in Napa. In 2019, they were selected as Winemakers to Watch by the San Francisco Chronicle, a national newspaper in the United States, and are the most dynamic young duo right now. Their motto is to make high-quality, unique, "California-like" wines while minimizing human intervention and striving to bring out the individuality of the vineyards to the fullest. Using their own network, they find organically grown, as well as old rooted vines and irrigated vineyards that have not yet been noticed, and brew using only indigenous yeasts to firmly reflect the flavor and individuality of the grape varieties in the wine. "Maître de Chai" is a French word (mainly Bordeaux) that means winemaker. Now they are independent and can make a living just by managing their own winery, but when they first started "Maître de Chai", both of them worked as winemakers and assistants at other wineries. The brand name expresses their gratitude to their mentor who gave them the opportunity to work in the cellar and shared his knowledge of winemaking and cultivation with them, which is why they are who they are today. In other words, "Maître de Chai" is the job title that led Alex and Martin to enter the wine industry, and it is their origin. The label features an illustration drawn in 1883, showing Libertas, the Statue of Liberty in Roman mythology, and a grizzly bear, the symbol of California, making a toast. California adopted the grizzly bear as its state flag in 1911, so this picture was drawn before that. The side of the barrel depicts a sailing ship and a worker holding a hoe that reached the American West Coast after a long journey during the Gold Rush (1848). The original illustration had the word "Eureka" written on the side of the barrel, meaning "Found!", and the sides of the wooden wine crate had "Mission," "Pineau," "Riesling," and "Zinfandel" written on the sides, respectively. However, the U.S. Alcohol and Tobacco Tax and Trade Bureau did not approve the designs as they were, so the word "Eureka" was removed and the side of the wooden crate now lists the grape varieties used in the wine inside.