Bianco di Custoza DOC

Bianco di Custoza DOC occupies 1,400 hectares in the southwestern Veneto, sitting in a morainic amphitheater between the southern shore of Lake Garda and the city of Verona. The zone spans 9 municipalities: Sommacampagna, Villafranca di Verona, Valeggio sul Mincio, Peschiera del Garda, Lazise, Castelnuovo del Garda, Pastrengo, Bussolengo, and Sona. Vineyards sit at 50 to 100 meters above sea level on soils left by ancient glaciers: calcareous, gravelly, sandy, and pebbly ground with clay and silt, rich in minerals and carbonates. These morainic deposits give Custoza its characteristic mineral salinity. The appellation shares production territory with red Bardolino DOC, and the two are often described as white and red counterparts of the same landscape.

• 1,400 hectares across 9 municipalities in southwestern Veneto
• Morainic soils of glacial origin: calcareous, gravelly, sandy, and mineral-rich
• Vineyards at 50 to 100 meters above sea level in a natural amphitheater
• Overlapping territory with Bardolino DOC to the north

The appellation benefits from a Mediterranean and temperate climate shaped decisively by Lake Garda's proximity. The lake acts as a thermal regulator, moderating summer heat and keeping winters warmer than surrounding inland areas. Summers are warm but not oppressive, and the meaningful diurnal temperature variation between day and night supports the retention of natural acidity in the grapes. Annual rainfall runs between 750 and 800 mm, concentrated in spring and autumn, leaving the ripening season relatively dry. This combination of lake influence, glacial soils, and reliable sunshine allows the blend varieties to ripen slowly and evenly, producing wines with freshness, balance, and aromatic delicacy.

• Lake Garda moderates temperatures: cooler summers, warmer winters
• Diurnal temperature variation preserves acidity in the grapes
• 750 to 800 mm annual rainfall, concentrated in spring and autumn
• Mediterranean and temperate classification; slow, even ripening

Bianco di Custoza is a blended wine at its core. The regulations require a minimum of 70% from four base varieties: Cortese (also known as Bianca Fernanda), Friulano (known locally as Tai or Trebbianello), Garganega, and Trebbiano Toscano. No single variety may exceed 45% of the blend. Up to 30% may come from supplementary varieties including Chardonnay, Malvasia, Manzoni Bianco, Pinot Bianco, and Riesling. This layered blending approach gives producers flexibility to express their house style while maintaining the appellation's signature freshness. Garganega brings floral aromatics and texture; Friulano contributes body and almond-tinged character; Cortese and Trebbiano Toscano add crispness and citrus lift.

• Minimum 70% from Cortese, Friulano, Garganega, and Trebbiano Toscano combined
• No single variety may exceed 45% of the final blend
• Up to 30% from supplementary varieties: Chardonnay, Malvasia, Manzoni Bianco, Pinot Bianco, Riesling
• Steel fermentation required for base Custoza; minimum 3-month aging

The Custoza area has a viticultural history stretching back to the pile-dwelling period, with Vitis silvestris seeds found at Pacengo and Peschiera. Roman settlement from the 1st century BC left wine evidence in mosaics and sculptures at Desenzano and Villa Decenturis. Written records of vine cultivation appear from the 9th century through the Middle Ages between Pastrengo and Sommacampagna, and wines named 'Custoza' appear in documents from the late 1700s. The Hapsburg authorities registered and classified the area as a grape-growing district in 1848, the same year as one of two significant battles of the Italian Wars of Independence fought in the zone. The Cavalchina family began planting vineyards in the early 1900s and in 1962 became the first producer to label wine as 'Custoza,' deliberately distinguishing it from neighboring Soave. DOC status followed on February 8, 1971, placing Custoza among Italy's earlier white wine DOC designations. The protective consortium was established in 1972, and the Riserva category was introduced in 2019.

• DOC established February 8, 1971; consortium formed 1972
• Cavalchina first used the 'Custoza' label in 1962 to differentiate from Soave
• Hapsburg authorities registered the area as a grape-growing district in 1848
• Riserva category introduced in 2019; categories now include Custoza, Superiore, Riserva, Spumante, and Passito

The appellation produces approximately 11 to 13 million bottles annually. Roughly 50% of production comes from cooperative wineries, with 35% from local independent producers and around 95 to 110 winemakers active in the region. Between 20 and 25% of production carries organic certification, reflecting a strong regional commitment to sustainable viticulture. Standard production is capped at 130 quintals per hectare, reduced to 120 for Superiore. Germany remains the largest export market, and the UK represents a growing opportunity. Custoza remains relatively underappreciated outside Italy, though international recognition is building steadily. Notable producers include Monte del Frà, Cavalchina, Gorgo, Albino Piona, Cantina di Custoza, Corte Gardoni, and Corte Fornello.

• 11 to 13 million bottles produced annually
• 50% cooperative production; 95 to 110 active winemakers
• 20 to 25% of production certified organic
• Germany is the primary export market; UK is an emerging destination