Antoniolo produces Nebbiolo from Gattinara, a historic zone in Piemonte's northern reaches where granite-rich soils and cool Alpine influence shape wines of structure and depth. The winery's portfolio centers on this single varietal, expressed across distinct vineyard sites. Osso San Grato Gattinara and Gattinara San Francesco represent the core range, both drawing critical attention from Wine Spectator, Wine Advocate, Wine Enthusiast, and Decanter. A Gattinara Riserva rounds the lineup, offering extended aging potential. Nebbiolo from this region demands patience—high tannin and acidity define the variety—and rewards it with mineral precision and the ability to evolve over decades. Antoniolo's focus on single-vineyard expression within Gattinara reflects the zone's terroir-driven tradition.