Conegliano Valdobbiadene Prosecco Superiore DOCG

The first written document linking Prosecco wine to the Conegliano Valdobbiadene area dates to 1772, though viticulture here has far older roots. The founding of the Scuola Enologica di Conegliano in 1876, the first oenology school in Italy, gave the region a scientific backbone that accelerated quality and reputation. The denomination received its first official recognition as a DOC in 1969, making it one of Italy's oldest protected wine zones. In 2009, a major restructuring of all Prosecco appellations saw Conegliano Valdobbiadene elevated to DOCG, Italy's highest quality designation, while the much larger flatland and foothill production area became the new Prosecco DOC. A decade later, on 7 July 2019, the UNESCO World Heritage Committee in Baku, Azerbaijan, inscribed the Prosecco Hills of Conegliano and Valdobbiadene as Italy's 55th World Heritage Site, recognising the landscape as an outstanding example of centuries-long interaction between people and environment.

• First documented connection between this area and Prosecco wine dates to 1772; Scuola Enologica di Conegliano founded 1876 (first oenology school in Italy) gave the region scientific infrastructure
• DOC recognition granted 1969; elevated to DOCG in 2009 alongside creation of the broader Prosecco DOC for flatland and lower foothill production
• UNESCO World Heritage Site designation confirmed 7 July 2019 at the 43rd session of the World Heritage Committee in Baku, Azerbaijan
• Recognition based on outstanding cultural landscape value: hogback ridges, ciglioni terracing, vineyard-woodland mosaic, and centuries of human-environment interaction

The zone stretches approximately 25 kilometres east to west, anchored by Conegliano to the east and Valdobbiadene to the west, entirely within the Province of Treviso. The landscape is dominated by a distinctive geomorphological system of steep, spiny ridges known locally as hogbacks, with vineyards cultivated on narrow grassy terraces called ciglioni, a technique established since the 17th century. Vines grow on sunny hillside slopes at altitudes ranging from 50 to 500 metres above sea level, while the north-facing slopes are covered mainly in woodland, creating the mosaic landscape that earned UNESCO recognition. The climate is mild, moderated by proximity to the Adriatic Sea, which brings warmth and moisture, and by the Alpine foothills, which shield the zone from cold northern winds and generate beneficial diurnal temperature variation. Soils vary across the zone: the Valdobbiadene sector features ancient moraines, sandstone, and clay; Conegliano has deeper glacially influenced soils. Nine distinct soil types are catalogued across the 43 officially recognised Rive.

• Altitudes range from 50 to 500 metres above sea level; steep south-facing slopes maximise sun exposure with average inclines of 25 to 35 degrees in steepest sectors
• Hogback ridge system creates a unique mosaic of vineyards, woodland, and small villages forming the UNESCO-recognised cultural landscape
• Adriatic Sea moderates temperatures while the Pre-Alps shield vineyards from cold northern winds and create useful diurnal variation supporting acidity retention
• Nine distinct soil types identified across the denomination, supporting significant terroir diversity between individual Rive (single-commune sub-zones)

Glera must comprise a minimum of 85% of every Conegliano Valdobbiadene Prosecco Superiore DOCG blend. Up to 15% may come from the permitted supporting varieties: Verdiso (zesty acidity), Bianchetta Trevigiana (florality), Perera (apple-pear aromatics), and Glera Lunga. The grape's natural high acidity, moderate alcohol potential, and delicate stone fruit and floral aromatics make it ideally suited to the Martinotti method (internationally called the Charmat method), in which secondary fermentation occurs in large pressurised autoclave tanks rather than in bottle. Italian enologist Federico Martinotti invented and patented this technique in 1895; Frenchman Eugène Charmat refined and commercialised the equipment around 1910, lending his name to the method internationally. Tank fermentation preserves the variety's fresh, primary aromatics far more effectively than extended bottle ageing would. Styles range from Extra Brut through Brut, Extra Dry, and Dry, with the partially sweeter Dry style being traditional for Superiore di Cartizze. A small but growing number of producers also make Col Fondo, a traditional refermented-in-bottle style with natural sediment.

• Minimum 85% Glera; up to 15% Verdiso, Bianchetta Trevigiana, Perera, and Glera Lunga permitted (singly or in combination)
• Martinotti method (tank secondary fermentation) patented 1895 by Federico Martinotti; refined commercially by Eugène Charmat around 1910
• Tank fermentation preserves Glera's delicate floral and stone fruit aromatics that would be masked by extended autolysis under traditional method
• Style range: Extra Brut, Brut, Extra Dry, Dry; Dry traditional for Cartizze; Col Fondo (bottle refermentation with sediment) is a growing artisan niche

The Superiore di Cartizze grand cru subzone covers just 107 to 108 hectares spread across five small hills in the municipality of Valdobbiadene, divided among approximately 140 landowners. Its ancient moraines, sandstone, and clay soils, combined with steep slopes at 300 metres altitude, produce wines with notable concentration, floral perfume, and structural finesse. Yields are tightly capped at 12 tonnes per hectare and only the spumante style is permitted; the traditional Cartizze profile is Dry (17 to 32 g/L residual sugar) with characteristic notes of white peach, lily, and crushed stone. Below Cartizze, the Rive system identifies 43 single-commune sub-zones whose vineyards must be hand-harvested and which must be vintage-dated on the label. Many top producers offer Rive bottlings expressing site-specific terroir contrast between Conegliano's deeper soils and Valdobbiadene's moraines. Below the Rive tier, multi-commune blends carry the base DOCG designation.

• Superiore di Cartizze: 107-108 hectares across five hills in Valdobbiadene, approximately 140 landowners, ~1.2 million bottles per year, yield cap 12 tonnes/hectare
• Cartizze tradition: Dry style (17 to 32 g/L residual sugar), spumante only; white peach, lily, crushed stone signature reflecting moraine and sandstone soils at 300m altitude
• Rive system: 43 single-commune sub-zones, hand-harvest required, vintage date mandatory on label; expresses site contrast between Conegliano (deeper soils) and Valdobbiadene (moraines, sandstone)
• Base DOCG: multi-commune blends, the entry tier; quality pyramid is DOCG base → 43 Rive → Cartizze grand cru

Around 430 producers operate within the denomination, ranging from large historic houses to small artisan growers. Bisol, headquartered in Valdobbiadene since 1542 (15 generations), is a benchmark producer with iconic Cartizze and Rive bottlings. Nino Franco, founded in 1919, defined the export face of Valdobbiadene and produces both the entry-tier Rustico and the flagship Primo Franco. Bortolomiol, founded 1949 in Valdobbiadene, was among the first to bring DOCG quality to international markets. Adami (founded 1933 in Vidor) and Ruggeri (founded 1950 in Valdobbiadene) round out the most internationally recognised quality producers. The Strada del Prosecco, established in 1966 as Italy's first wine route, links wineries from Conegliano to Valdobbiadene through 30 communes and provides the spine for the region's wine tourism. The annual Vino in Villa festival at Castello di San Salvatore in Susegana presents new vintages each May. Verona's Vinitaly each April features the region prominently, and the city of Treviso anchors restaurant and enotourism activity in the broader Marca Trevigiana cultural area.

• Iconic producers: Bisol (15 generations since 1542, benchmark Cartizze), Nino Franco (founded 1919, export defining), Bortolomiol (founded 1949), Adami (founded 1933 in Vidor), Ruggeri (founded 1950)
• Strada del Prosecco: Italy's first wine route (established 1966), linking Conegliano to Valdobbiadene through 30 communes; foundational tourist infrastructure
• Vino in Villa annual festival at Castello di San Salvatore in Susegana (May) showcases new-release Conegliano Valdobbiadene Prosecco Superiore
• Approximately 430 producers serve a global market; primary export destinations include UK, USA, and Germany, with strong growth in premium-tier Rive and Cartizze bottlings