Gaja produces wines from Piemonte in Northern Italy, where the region's continental climate and limestone-rich soils shape powerful, structured reds. The winery focuses on Nebbiolo and Barbera, the traditional grapes of the area. Sorì San Lorenzo and Sperss Barolo, both Nebbiolo-based wines, represent the winery's work with this demanding variety—known for its high tannins, acidity, and capacity to age. Barbera Sori Vagnona showcases the other pillar of Piemontese viticulture, a grape that yields wines with dark fruit and mineral tension. These wines have been assessed by major critics including Decanter, Wine Advocate, Wine Spectator, Wine Enthusiast, and Falstaff.