Collosorbo produces Sangiovese-based wines from Montalcino in Tuscany's heart. The winery's core range spans three expressions of the region's signature style: Rosso di Montalcino, the approachable entry point; Brunello di Montalcino, the structured standard; and Brunello di Montalcino Riserva, the age-worthy reserve. Each reflects the volcanic soils and continental climate that define this corner of central Italy, where Sangiovese achieves both power and finesse. Wine Enthusiast, Decanter, Wine Advocate, Wine Spectator, and Falstaff have all assessed the portfolio, with the Riserva earning particular recognition among prestige critics. The wines embody Montalcino's tradition of slow-aging reds built on tannin and acidity rather than immediate fruit.