Bianco di Custoza DOC, now designated Custoza DOC, comes from the morainic hills southeast of Lake Garda in the province of Verona. The landscape was shaped by the ancient Garda glacier and is marked by gently rolling slopes, varied exposures, and soils of gravel, sand, clay, limestone and stony glacial deposits. Lake Garda moderates climatic extremes, while air currents and marked day–night temperature shifts encourage gradual aromatic development and preserve acidity. Vineyards occupy a mosaic of hilltops, sheltered hollows and flatter sites, creating distinct expressions within the appellation.
The denomination has always been defined by a traditional blend of white grapes. Garganega commonly provides the structural core, floral detail and a subtle almond-like finish. Trebbianello, a locally rooted variety, contributes freshness and tension. Bianca Fernanda, Malvasia Bianca Lunga and Riesling Italico add fragrance, suppleness and acid lift; depending on the producer, Manzoni Bianco, Pinot Bianco, Pinot Grigio and Chardonnay may also be included. This interaction of varieties, rather than the dominance of a single grape, lies at the historical heart of the Custoza style.
Vineyards are managed to promote even ripening and good airflow around the bunches. Careful canopy work, selection of sound fruit and parcel-by-parcel harvest timing are central practices. In the cellar, grapes are generally handled gently, pressed softly and fermented at controlled temperatures in stainless steel. The individual varieties are often vinified separately in order to retain their distinctive characters, then assembled into the final blend. A brief period on fine lees may add texture and aromatic depth. Alongside the still wine, the denomination also includes sparkling and passito styles; for passito, selected grapes are dried before vinification. The history of the area rests on a long local practice of bringing together grapes and sites to create a balanced white wine shaped by the Garda morainic landscape.
