Famiglia Losi operates in Chianti, the heart of Tuscany's wine country, where Sangiovese defines the regional character. The winery's Querciavalle Vin Santo del Chianti Classico—a Sangiovese expression—has drawn assessment from Wine Advocate, Wine Spectator, Wine Enthusiast, and Decanter. Alongside it stands Il Brunone Vin Santo del Chianti Classico, built from Trebbiano Toscano and Malvasia, the traditional white grapes of the region's fortified wine tradition. The Querciavalle Rosato rounds the portfolio. These wines reflect Chianti's continental climate and limestone-rich soils, which yield Sangiovese with structure and acidity, while the white varieties bring the floral and dried-fruit complexity characteristic of Vin Santo production. Famiglia Losi's presence in this classified zone positions it within one of Italy's most rigorous and historically significant wine regions.