Barbaresco — Treiso Commune (Pajorè MGA, Marcarini MGA)

Treiso's winemaking heritage is deeply entwined with that of Barbaresco itself. The commune was once a mere frazione of Barbaresco, and sites such as Rombone and Gresy (now within the Marcarini MGA) were already recognised for their quality in late-19th-century classifications drawn up by Domizio Cavazza, the agronomist who produced the first wines officially called Barbaresco in 1894. Pajorè earned its modern reputation as a cult cru when Enrico Giovannini Moresco first vinified it as a pure single-vineyard wine in 1967, and the story goes that Angelo Gaja was so impressed by the wine he subsequently purchased the plot. The commune has since built a distinct identity, with producers like Cantina Vignaioli Elvio Pertinace, founded in 1973, leading the charge for quality-focused, terroir-transparent winemaking rooted entirely in Treiso.

• Treiso was historically a frazione of Barbaresco; Cavazza's late-1800s classifications already identified Rombone and Gresy (now Marcarini) as quality sites
• Enrico Giovannini Moresco first bottled Pajorè as a single-vineyard wine in 1967, creating what became one of Barbaresco's most sought-after crus
• Cantina Vignaioli Elvio Pertinace, founded in 1973 by Mario Barbero and 12 fellow growers, was the first cooperative dedicated to Treiso terroir and remains a benchmark producer
• UNESCO recognition of the Langhe-Roero and Monferrato wine landscapes has elevated Treiso's global profile and attracted increasing viticultural investment

Treiso occupies the southernmost reaches of the Barbaresco zone, characterised by higher average elevations and a distinctive geological profile. The commune's soils belong predominantly to the Formazione di Lequio (Tortonian-Serravallian), composed of compact grey marls alternating with layers of sand, contrasting with the bluish calcareous marls of Sant'Agata Fossili found in the Barbaresco commune to the north. This less compact, sandier soil structure yields wines of a leaner, more austere style with high aromatic definition and persistent acidity. Treiso's altitude brings constant breezes and pronounced day-to-night temperature swings, both of which are critical for preserving freshness and developing the aromatic complexity that defines the commune's best wines. The Pajorè MGA benefits from south and south-west exposures with lean, marly soils, while Marcarini's altitudes of 280 to 385 metres and varied aspects produce wines of notable perfume and structural elegance.

• Treiso vineyard altitudes range broadly from 180 to 495 metres above sea level, with the town centre itself at 410 metres; higher sites benefit from greater diurnal temperature shifts
• Formazione di Lequio soils, compact grey marls alternating with sand, are the defining geological feature of Treiso and produce characteristically leaner, more aromatic Nebbiolo
• Pajorè MGA is centred on south and south-west-facing slopes at roughly 230 to 300 metres, with lean marly soil ideal for elegant yet structured Nebbiolo
• Marcarini MGA sits at 280 to 385 metres with varied exposures; Pertinace's plots at the top of the vineyard benefit from cooling breezes off the Tanaro River

Barbaresco DOCG is made exclusively from 100 percent Nebbiolo, and Treiso's versions are widely regarded as the freshest and most refined expressions in the entire denomination. The commune's altitude and Lequio formation soils produce a naturally leaner, tendentially austere style, with Nebbiolo expressing higher-toned aromatics, vibrant acidity, and firm but refined tannins. Pajorè, whose south and south-west-facing slopes and thin marly soils concentrate flavour, tends toward elegance and aromatic depth combining wild strawberry, rose, mineral notes, and spice. Marcarini, with its sandy soils and varied aspects, yields wine of notable perfume, with rose, cherry, and smoke, underpinned by moderately firm tannins and a fresh mid-palate. Both MGAs share the commune's signature tension and longevity, benefiting particularly in cooler, fresher vintages where higher altitudes prove advantageous.

• Nebbiolo from Treiso expresses a leaner, more austere profile than from Barbaresco or Neive, driven by higher elevation and Lequio formation soils rich in sand and compact grey marl
• Pajorè wines show aromatic depth of rose, wild strawberry, mineral, and spice, with a combination of harmony and structural strength suited to extended cellaring
• Marcarini wines from Pertinace express rose, smoke, red berry, and liquorice, with moderately firm tannins and the elegance and perfume typical of Treiso as a commune
• Treiso was described by Antonio Galloni as the undisputed star of Barbaresco's 2010 vintage, when its higher altitudes delivered greater diurnal shifts and ideal gradual ripening conditions for Nebbiolo

Treiso hosts a compact but impressive roster of producers whose work defines the commune's reputation. Cantina Rizzi, based in Treiso and managed by the Dellapiana family, produces highly regarded Barbaresco from both Pajorè and Nervo MGAs, with vineyards ranging from 220 to 430 metres across six crus. Cantina Vignaioli Elvio Pertinace, a cooperative of 20 growers farming 110 hectares almost entirely in Treiso, is a long-standing benchmark for MGA-level Barbaresco from Marcarini, Nervo, and Castellizzano. Ca' del Baio, run by the Grasso family from Treiso, holds vineyards in both Marcarini and Vallegrande in Treiso as well as Asili and Pora in Barbaresco proper. Piazzo Comm. Armando and Bel Colle both produce recognised Pajorè bottlings, and Albino Rocca has expanded its Treiso holdings in recent years to leverage the commune's altitude for balance in warmer vintages.

• Cantina Rizzi (Treiso): Dellapiana family estate with 44 hectares across six crus including Pajorè and Nervo; Pajorè vineyards at 230 to 300 metres with south and south-west exposure
• Cantina Vignaioli Elvio Pertinace (Treiso, est. 1973): cooperative of 20 growers producing benchmark MGA Barbaresco from Marcarini, Nervo, and Castellizzano, aged in large Slavonian oak casks
• Ca' del Baio (Treiso): four-generation Grasso family estate with vineyards in Marcarini, Vallegrande, Asili, and Pora; recognised as Gambero Rosso Winemaker of the Year in 2016
• Piazzo Comm. Armando and Bel Colle both produce well-regarded Pajorè bottlings; Albino Rocca has increased its Treiso presence, using the commune's altitude to maintain freshness in hotter vintages

Barbaresco received DOC status in 1966 and was elevated to DOCG in 1980. The DOCG disciplinare requires wines to age a minimum of 26 months from November 1 of the harvest year, with at least 9 of those months in oak barrels; Riserva requires 50 months total ageing with the same 9-month oak minimum. Maximum permitted yield is 56 hl/ha and minimum alcohol is 12.5 percent ABV. The MGA system was introduced in 2007 by the Barbaresco Consorzio, which was the first DOCG in Piedmont to adopt this classification, ultimately recognising 66 subzones across all four communes. Treiso holds 20 of these MGAs, including Pajorè and Marcarini, each with defined geographical boundaries. The term Vigna may appear on a label alongside an MGA name, indicating that the wine comes from a specific single vineyard within that designated zone.

• Barbaresco DOCG: DOC granted 1966, DOCG elevated 1980; 100 percent Nebbiolo required; minimum 12.5 percent ABV
• Minimum ageing: 26 months total, 9 months in oak for standard Barbaresco; 50 months total, 9 months in oak for Riserva, both calculated from November 1 of the harvest year
• Maximum yield: 56 hl/ha across all Barbaresco DOCG vineyards, ensuring concentration and quality
• Barbaresco's MGA system, introduced in 2007 with 65 subzones (66 by 2010), was the first such geographic classification in Piedmont; Treiso holds 20 of the 66 MGAs

Treiso retains a quietly agricultural character, set apart from the bustle of Alba and the more tourist-heavy town of Barbaresco. The village sits at 410 metres on a hillside terrace offering panoramic views across vine-clad slopes that change dramatically with the seasons, and is part of the UNESCO World Heritage landscape of the Langhe-Roero and Monferrato. The Enoteca Regionale del Barbaresco in the nearby village of Barbaresco provides a useful introduction to the denomination's MGAs, and producers such as Cantina Rizzi and Pertinace welcome visitors for tastings, typically by appointment. Autumn harvest, usually falling in early October for Treiso given its higher elevations, brings the most vivid experience of the commune's viticultural life, coinciding with the white truffle season centred on Alba, which pairs naturally with the region's wines.

• Treiso village sits at 410 metres above sea level and is part of the UNESCO World Heritage wine landscape of Langhe-Roero and Monferrato, recognised for its exceptional cultural value
• Cantina Rizzi and Pertinace both offer estate visits and tastings, generally by appointment; advance booking is strongly recommended during harvest season in October
• The Enoteca Regionale del Barbaresco, located in the village of Barbaresco, provides producer recommendations and a broad selection of MGA-level Barbaresco for comparative tasting
• The white truffle season centred on Alba, running from October to December, aligns with young Barbaresco releases and reinforces one of the region's defining gastronomic traditions