Rocca di Castagnoli produces wines from the heart of Toscana, in the Chianti Classico zone of Central Italy. The winery's portfolio centers on Sangiovese, the region's defining grape, expressed most prominently in Stielle Gran Selezione Chianti Classico. This wine has earned recognition from Falstaff, Wine Spectator, Wine Enthusiast, Wine Advocate, and Decanter. The winery also crafts Vin Santo del Chianti Classico, a traditional fortified wine built from Malvasia and Trebbiano grapes, and Buriano Toscana, a Cabernet Sauvignon that reflects the broader Tuscan palette. Each wine has been assessed by major prestige critics, anchoring the winery's output in the classical Tuscan tradition while demonstrating range across both indigenous and international varieties.