Eraldo Viberti produces Nebbiolo-based Barolos from Piemonte in Northern Italy. The winery's portfolio centers on expressions of this demanding variety, which thrives in the region's limestone-rich soils and continental climate. Roncaglie Barolo and Rocchettevino Barolo represent distinct vineyard sites, each capturing the structural complexity and aging potential that define serious Barolo. The flagship Barolo rounds out the range. Nebbiolo demands patience—these wines build their character over years in bottle, revealing layers of tar, rose, and dark cherry beneath formidable tannins. Wine Advocate, Wine Spectator, Decanter, Wine Enthusiast, and Falstaff have all assessed the winery's output, reflecting the critical attention Piemontese Barolo commands.