This producer has a cult following among sommeliers in New York and San Francisco. It is a collaboration winery between two childhood friends, Duncan Arnaud, who has experience in winemaking at Caymus and Kongsgaard, and Nathan Roberts, a barrel maker. An entire chapter is devoted to Arnaud Roberts in The New California Wine, the most influential wine book in California today. In 2012, they were selected as Winemaker of the Year by the San Francisco Chronicle, a national newspaper in the United States, and are the young duo that is currently attracting the most attention. Nathan's grandmother is Margrit Mondavi, the beloved wife of Robert Mondavi. Many of the labels used for Arnaud Roberts' wines were designed by Margrit Mondavi. Meanwhile, Duncan was aiming to become a professional cyclist, but due to an unexpected turn of events, he gave up his dream and started working part-time at Caymus and Gross. In 2001, he and Nathan got along well and made just one barrel of wine using grapes from that year. The wine was very well received, and the following year they officially started a winery. Nathan and Duncan are talented producers who can maximize the potential of California's soil, such as cultivating rare varieties and cultivating varieties that are usually suitable for warm climates in cool environments. They are interested in wines made in famous wine regions around the world. Their wines are fermented with indigenous yeasts and aged almost exclusively in old barrels, emphasizing the original flavor of the grapes. In the era of diversity in California wine styles, they are producers who represent the "New California" style, which is trying to revolutionize the style with the slogan "making elegant wines that express the unique climate of the land."