Poggio Il Castellare produces wines from Toscana in central Italy, drawing on the region's volcanic soils and continental climate. The winery's portfolio centers on Sangiovese, the backbone of Brunello di Montalcino—a wine of structure and aging potential defined by the appellation's strict regulations. Pian Bossolin Brunello di Montalcino Riserva, the flagship expression, represents the extended maturation and concentration that the Riserva designation demands. The winery also works with Cabernet Sauvignon, as seen in Cervio Sant'Antimo, a wine that reflects the broader Tuscan tradition of blending international varieties with local terroir. Wines from Poggio Il Castellare have been assessed by Wine Spectator, Wine Advocate, Wine Enthusiast, Decanter, and Falstaff.