Feudo Antico works with the native varieties and terroir of Abruzzo, in central Italy's Adriatic foothills. The winery produces sparkling and still wines from grapes rooted in the region: Chardonnay, Montepulciano, and Passerina. Its flagship releases—Tullum Brut, Tullum Rosso, and Passerina Brut—have been assessed by Wine Enthusiast and Decanter. The Tullum Brut and Tullum Rosso, both scoring 90 points on average, represent the house's approach to structured, age-worthy expressions. Passerina Brut, also at 90 points, showcases the crisp, mineral character of its namesake white variety, a hallmark of Abruzzo's cool-climate viticulture. These wines reflect the region's continental climate and limestone-rich soils, which favor aromatic whites and elegant reds with natural acidity and depth.