Castello di Bossi produces wines from Toscana in central Italy, drawing on the region's signature Sangiovese and complementary varieties. The winery's portfolio spans traditional expressions and contemporary blends. Vin San Laurentino, a field blend of Trebbiano, Malvasia, Sangiovese, and Moscato, represents a complex approach to the region's white and red grapes. Gran Selezione Chianti Classico, built on Sangiovese, follows the strict protocols of Tuscany's most regulated appellation. Girolamo, a Merlot, sits apart as a single-varietal statement. These wines have been assessed by Wine Advocate, Wine Enthusiast, Wine Spectator, Decanter, and Falstaff, with Vin San Laurentino and Gran Selezione Chianti Classico receiving particular recognition among prestige critics. The range suggests a winery engaged with both the classical framework of Chianti and the broader possibilities of Tuscan viticulture.