Ugni Blanc (Trebbiano Toscano)
The world's most planted white grape, Ugni Blanc powers nearly all Cognac production and plays an indispensable supporting role across Italian and French winemaking.
Ugni Blanc is the French name for Trebbiano Toscano, an ancient Italian variety that accounts for approximately 98% of all vines planted in the Cognac region of France. Its defining traits are high acidity, low sugar, and a neutral flavor profile, making it perfectly suited to double distillation and extended oak aging. While most still wines from this variety are crisp and simple, quality-focused producers in Abruzzo and the Cognac crus demonstrate that careful viticulture can produce wines of real depth.
- Ugni Blanc accounts for approximately 98% of vines in the Cognac geographical indication, covering over 83,000 hectares across the six crus; Cognac AOC rules require base wines to be made from at least 90% Ugni Blanc, Folle Blanche, and Colombard combined
- The variety likely arrived in France during the 14th century when the papal court relocated from Rome to Avignon, and its local Cognac synonym is Saint-Emilion, not to be confused with the Bordeaux commune
- Ugni Blanc produces naturally high-acid, low-sugar base wines of approximately 8 to 9% ABV, ideal for the double distillation in copper Charentais pot stills mandated by Cognac AOC rules
- In 2010, France held around 90,000 hectares of Ugni Blanc, more than double the Italian total at the time, making it the most widely planted white variety in France
- The Trebbiano family is cited in more than 80 of Italy's DOCs, with Trebbiano Toscano sanctioned for use in approximately 85 appellations, though it holds only a handful of its own DOC designations
- Trebbiano Toscano's dominance in Cognac is partly a legacy of the phylloxera crisis: before the late 19th-century epidemic, Folle Blanche was the dominant variety, but its vulnerability to grey rot once grafted allowed the more disease-tolerant Ugni Blanc to take over
- Beyond wine and brandy, Trebbiano grapes form the base of traditional balsamic vinegar, with true Aceto Balsamico Tradizionale of Modena and Reggio Emilia made from a reduction of pressed Trebbiano and Lambrusco grapes, aged a minimum of 12 years
Origins & History
Trebbiano may have originated in the Eastern Mediterranean and was known in Italy in Roman times, with Pliny the Elder referencing a vine called 'vinum trebulanum' from the Campania region. A subtype was recognized in Bologna in the 13th century, and the variety made its way to France most likely during the Papal retreat to Avignon in the 14th century. In southern France, it spread under the name Ugni Blanc through Provence before finding its permanent home in the Charente and Gascony brandy regions. Its rise to total dominance in Cognac was cemented after the phylloxera crisis of the late 19th century, when the more disease-susceptible Folle Blanche was largely wiped out and Ugni Blanc, grafted onto resistant rootstocks, revitalized the Charente vineyards.
- Ancient Italian origins: referenced by Pliny the Elder as 'vinum trebulanum'; known in Italy since Roman times
- Arrived in France around the 14th century, likely via the Avignon papacy; spread through Provence before concentrating in Charente and Gascony
- Known locally in Cognac as Saint-Emilion; other French synonyms include Clairette Ronde, Clairette de Vence, and Rossola in Corsica
- Phylloxera crisis of the late 19th century destroyed the dominant Folle Blanche, enabling grafted Ugni Blanc to become the near-exclusive Cognac grape
Where It Grows Best
Ugni Blanc's strength is its adaptability, but it performs best in cool to moderate climates where its naturally high acidity is a virtue rather than a flaw. In Cognac, the variety covers all six crus, with the chalky clay-limestone soils of Grande Champagne and Petite Champagne producing the most refined base wines with exceptional aging potential. In Gascony's Armagnac appellation, it is joined by Folle Blanche, Colombard, and Baco. Back in Italy, Trebbiano Toscano thrives in Tuscany, Umbria (as Procanico), and Lazio, where it features in Frascati, Orvieto, and Vin Santo. Abruzzo's rocky soils and Adriatic influence allow the distinct Trebbiano Abruzzese to produce the most structured and age-worthy Italian expressions.
- Cognac, France: all six crus across 83,000-plus hectares; Grande Champagne and Petite Champagne chalk-limestone soils yield the finest base wines
- Armagnac, France: Gascony; blended with Folle Blanche, Colombard, and Baco; slightly richer fruit character than Cognac equivalent
- Italy: Tuscany (Vin Santo blends, dry whites), Umbria (Orvieto blends as Procanico), Lazio (Frascati Superiore DOCG), and Abruzzo (Trebbiano d'Abruzzo DOC)
- Beyond Europe: Argentina, Australia, Bulgaria, and Portugal (as Talia or Thalia) for bulk wine and brandy production
Flavor Profile & Style
Ugni Blanc is a decidedly non-aromatic variety: its still wine expressions present as lean, high-acid whites with delicate notes of lemon, green apple, white flowers, and fresh herbs. The palate is defined more by its clean, piercing acidity and light body than by fruit richness or aromatic complexity. In cooler Cognac subregions, the base wine is intentionally austere, thin, and virtually undrinkable by itself, yet ideal for distillation. When vinified as a still wine with care, as exemplified by top Abruzzo producers, the grape can develop surprising mineral depth, stone fruit, and textural interest. In Tuscany, the variety contributes structure and acidity to Vin Santo when dried grapes are concentrated and then aged in small caratelli barrels.
- Primary aromatics: lemon zest, green apple, white flowers, fresh herb; not an aromatic variety by nature
- Body: light to medium; high acidity is the dominant structural element; alcohol low in base wines (8 to 9% ABV for Cognac production)
- Aging potential: minimal for everyday still wines; exceptional for distilled spirits; quality Trebbiano d'Abruzzo from Abruzzo can cellar for up to a decade
- Style range: austere Cognac base wine; delicate dry still white in Italy; rich amber Vin Santo from dried Tuscan grapes
Winemaking Approach
For Cognac production, winemakers ferment the juice at cool temperatures using native yeasts, with neither sugar nor sulphur permitted by AOC rules; the resulting thin, acidic wine is then double-distilled in traditional copper Charentais pot stills before aging a minimum of two years in French oak. For still wine production, stainless steel fermentation at cool temperatures is standard to preserve freshness, with malolactic fermentation typically avoided to maintain acidity. In Abruzzo, producers such as Emidio Pepe take a radically traditional approach: grapes are foot-trodden in wooden tubs, fermented spontaneously with native yeasts, and aged on the lees in glass-lined cement tanks before bottling unfined and unfiltered. In Tuscany, Trebbiano Toscano is dried on reed mats for several months before pressing to produce Vin Santo, where it is then aged in small caratelli barrels.
- Cognac base wine: cool fermentation with native yeast; no added sugar or sulphur; double distillation in copper pot stills; minimum two years in French oak
- Still wine: stainless steel at cool temperatures; malolactic fermentation avoided; early bottling to preserve freshness and acidity
- Emidio Pepe method: foot-trodden grapes, spontaneous fermentation, 18 to 24 months on lees in concrete tanks, bottled unfined and unfiltered
- Vin Santo: grapes dried for several months to concentrate sugars, then fermented and aged in small caratelli barrels under rooftops
Key Producers & Wines to Try
In Cognac, the four dominant houses, Hennessy (LVMH), Rémy Martin (Rémy Cointreau), Martell (Pernod Ricard), and Courvoisier (Campari Group), collectively account for more than 90% of US market sales and all rely almost exclusively on Ugni Blanc. For still wine, the most acclaimed Italian expressions come from Abruzzo, where Emidio Pepe has produced complex, age-worthy Trebbiano d'Abruzzo by traditional methods since 1964, and Valentini (Azienda Agricola Valentini) is regarded as one of Abruzzo's iconic estates, producing Trebbiano d'Abruzzo in tiny quantities from its best grapes. Tiberio is a reliable modern benchmark for the appellation. In Tuscany, the variety appears in Vin Santo del Chianti blends from producers such as Selvapiana and Castello di Verrazzano.
- Cognac classics: Hennessy, Rémy Martin, Martell, Courvoisier; all predominantly Ugni Blanc-based, shaped by terroir cru and aging
- Italian benchmark: Emidio Pepe Trebbiano d'Abruzzo (since 1964); biodynamic, foot-trodden, aged in concrete; extraordinary longevity
- Abruzzo icons: Valentini (Azienda Agricola Valentini) Trebbiano d'Abruzzo; tiny production, selected from only the finest harvests
- Tuscany: Vin Santo del Chianti from Selvapiana and Castello di Verrazzano; Orvieto blends in Umbria featuring Trebbiano as Procanico
Food Pairing & Serving
Ugni Blanc's high acidity and neutral flavor make it one of the most food-friendly white grapes, complementing rather than competing with delicate dishes. Its lean structure and citric freshness are a natural match for seafood of all kinds, fresh and soft cheeses, and simple vegetable dishes of the Italian aperitivo tradition. The wine's acidity cuts through richness in cream-based pasta and risotto. Serve still wines chilled at 8 to 10 degrees Celsius to highlight their freshness; aged Cognac and Armagnac are best appreciated at room temperature in a tulip glass. Traditional balsamic vinegar, itself made from Trebbiano must, makes for a fittingly circular table companion.
- Seafood: oysters, clams, crudo, grilled prawns, and lemon-dressed white fish are quintessential matches for the variety's acidity and minerality
- Light pasta and risotto: the acidity cuts through cream-based sauces without the wine's fruit competing with subtle flavors
- Italian aperitivo: fresh ricotta, soft goat cheese, marinated vegetables, and white asparagus
- Cognac pairings: dark chocolate, candied citrus, aged Parmesan or Comté, and foie gras for older, more oxidative expressions
Ugni Blanc presents as a crystalline, high-acid white with restrained aromatics: lemon zest, green apple, white flowers, and a subtle herbal freshness. The palate is lean and defined by clean, piercing acidity rather than fruit weight, with a light to medium body and minimal phenolic grip. Mineral notes of chalk dust and wet stone emerge in quality examples from Grande Champagne and Petite Champagne terroirs. When carefully vinified as a still wine with extended lees contact, unexpected texture and complexity can develop, as demonstrated by the great Trebbiano d'Abruzzo producers. In Vin Santo form, dried-grape concentration and years of caratelli aging transform the grape into something rich, honeyed, and nutty, though its acidity always provides a backbone of freshness. The variety's neutrality is its genius in blending and distillation contexts, vanishing gracefully to let terroir and craft take center stage.