Summers Estate Wines is a family-owned and operated winery and tasting room where guests have been welcomed as family members since 1996. The fruit for their estate wines is sourced from the Summers’ vineyards on Tubbs Lane (Calistoga Appellation - Napa County) and their home ranch in Knights Valley (Knights Valley Appellation). These approximately 50 acres of estate vineyards consistently produce approximately 10,000 cases of estate wines on an annual basis. Summers produces a broad offering of wines including a Napa Valley Estate Zinfandel, Alexander Valley Reserve Chardonnay, Napa Valley Estate Charbono, a Calistoga-Napa Valley Cabernet Sauvignon, a Knights Valley Cabernet Sauvignon, and a Calistoga-Napa Valley Reserve Cabernet Sauvignon. In smaller quantities, Summers produces a Rosé of Charbono, Knights Valley Petite Sirah, Knights Valley Reserve Merlot, as well as Muscat Canelli. Summers is known as one of the few California producers of Charbono, an Italian grape varietal that’s been traced to both southwestern France and northern Italy. Some experts believe that this variety is a close relative to the Dolcetto variety. The vine bears large berries that are used to make a dark red wine that, when subjected to extended skin contact during fermentation, is full of fruit flavor with soft, round tannins. Producing just 1,300 cases of Charbono annually, Summers holds the title as America’s largest producer of the little-known varietal.