Castello di Perno sits in Langhe, the heart of Piemonte's Nebbiolo country. The winery focuses on the region's signature grape, producing wines that reflect the structural intensity and mineral precision Nebbiolo demands. Castelletto Barolo, the flagship, showcases the depth and aging potential the appellation is known for. A Langhe Nebbiolo offers a more approachable entry to the varietal, while the core Barolo rounds out a lineup rooted in the terroir's demanding standards. Decanter, Wine Advocate, Wine Enthusiast, Wine Spectator, and Falstaff have all assessed the portfolio, confirming the technical caliber of these expressions.