Guidi produces wines from Chianti, the heart of Tuscan viticulture. The winery draws on the region's classical grape varieties—Sangiovese, Merlot, Cabernet Sauvignon—to craft structured reds that balance tradition with modern winemaking. Avus Venter Rosso, a blend of Merlot, Cabernet Sauvignon, and Sangiovese, represents the winery's approach to Tuscan red wine. The Chianti Classico Riserva, built on Sangiovese with Merlot and Colorino del Valdarno, expresses the denomination's characteristic earthiness and aging potential. Guidi also produces Vernaccia di San Gimignano, the crisp white varietal native to the region. Wines from the winery have been assessed by Wine Advocate, Wine Enthusiast, and Decanter.