Castellina produces Sangiovese-based wines from Toscana's Montalbano zone, a region defined by clay and limestone soils that shape the character of its reds. The winery's core offerings—Chianti Montalbano and Chianti Montalbano Riserva—reflect the traditional expression of this appellation. The standard Chianti Montalbano presents the varietal's mineral spine and tart cherry structure, while the Riserva, aged longer in wood, develops deeper complexity and tannin integration. Both wines have been assessed by major critics including Wine Advocate, Decanter, Wine Spectator, and Wine Enthusiast. Sangiovese, Toscana's signature grape, demands careful site selection and winemaking precision; Castellina's focus on the Montalbano subzone demonstrates a commitment to terroir-driven viticulture in one of central Italy's most distinctive wine territories.