Casot MGA, Treiso, Barbaresco

Introduction

Casot is one of the officially recognized menzioni geografiche aggiuntive (MGAs) in the commune of Treiso, the smallest of the three principal townships that comprise the Barbaresco DOCG zone. Treiso, which was formerly part of Barbaresco before becoming an independent commune, lies in the southeastern section of the denomination alongside the better-known townships of Barbaresco and Neive, with a small fragment extending into Alba.

As with many MGAs in the Barbaresco zone, Casot represents part of the broader modern effort to codify and recognize the region's vineyard heritage. The official MGA list was introduced in 2007 (three years before Barolo implemented a similar system) and notably retained almost all historically known vineyards rather than absorbing smaller sites into more commercially prominent names. This administrative framework has helped establish clearer geographical identities for Barbaresco's diverse vineyard landscape, though the depth of historical documentation varies considerably among individual sites.

Historical Context

The formal recognition of single vineyards in Barbaresco is a relatively recent phenomenon compared to some other prestigious European wine regions. The first single-vineyard Barbaresco (Prunotto's Montestefano) appeared only in 1961. Lorenzo Fantini's influential late 19th-century monograph on Piedmontese viticulture indicated very few "choice positions" in the Barbaresco zone overall, and documented none whatsoever in Neive, suggesting that the granular vineyard distinctions we recognize today developed primarily in the modern era.

The first systematic attempts to list and rate Barbaresco's finest positions emerged in the 1960s through the work of Luigi Veronelli, followed by Renato Ratti's classifications in the 1970s. Certain vineyards achieved fame through the dedicated work of individual producers (San Lorenzo, Tildin, and Martinenga in Barbaresco proper; Santo Stefano in Neive) their reputations built through the exacting standards of producers such as Gaja, Giacosa, and Alberto di Gresy. In Treiso, Pajorè emerged as the most consistently recognized cru during this formative period.

Casot appears to fall among the MGAs with less extensive historical documentation, representing a site whose recognition has been formalized through the modern MGA system rather than through decades of individual bottlings or négociant price premiums that established consensus around sites like Asili, Rabajà, or Montestefano.

Terroir and Vineyard Characteristics

While specific documentation of Casot's precise terroir characteristics remains limited, the site exists within the broader geological and climatic context of Treiso and Barbaresco. The Barbaresco zone's soils can broadly be divided into two principal types. The calcareous clay of the Tortonion epoch predominates in many areas and proves very similar to soils found in the Barolo communes of La Morra and Barolo, resulting in wines of particular elegance and aromatic intensity (characteristics often associated with Barbaresco's identity relative to its more powerful neighbor.

The Barbaresco zone occupies south-facing slopes at elevations ranging from 200 to 400 meters above sea level, generally lower than those of Barolo. This lower altitude, combined with the moderating influence of the Tanaro River, means that Nebbiolo ripens earlier here compared to Barolo. These climatic advantages contribute to the distinctive character of Barbaresco wines: fruitier and less overtly perfumed than Barolo, though possessing similar levels of acidity and tannin that provide comparable aging potential.

Treiso's vineyards occupy the southeastern section of the Barbaresco zone, where variations in elevation, aspect, soil composition, and microclimate create distinct expressions even within relatively small geographical areas. The manner in which vine roots navigate the complex layering of soil strata) which can change rapidly both vertically and horizontally within a vineyard (ultimately dictates water and nutrient access throughout the growing season, profoundly influencing the resulting wines.

Wine Characteristics

Barbaresco wines from Treiso, including those from Casot, express Nebbiolo within the broader stylistic parameters of the denomination. These are firmly structured wines that belie the common misconception that Barbaresco represents a lighter-bodied alternative to Barolo. While Barbaresco regulations require a minimum alcoholic strength of 12.5%) easily achieved and often exceeded to 13.5% or higher (the wines do not lack for the tannins and acidity that define the Nebbiolo grape. Young Barbaresco, regardless of origin, is rarely an immediately pleasurable experience, demanding patience from those who approach it prematurely.

The classic aromatic profile of Barbaresco encompasses perfumes of cherry and violets in youth, evolving with age toward the more complex notes of iron, tar, and orange peel that mark mature Nebbiolo. The traditional winemaking techniques that have seen renewed interest in recent years) including extended maceration periods of up to 40 days and aging in large oak casks (botti) rather than smaller French barriques (tend to emphasize these characteristics, producing wines of muscular structure and pronounced site identity.

Barbaresco must be aged for a minimum of two years before release, with Riserva wines requiring an additional year. This shorter mandatory aging period compared to Barolo (three years, four for Riserva) has unfortunately led to the mistaken assumption that Barbaresco wines are less ageworthy) an error that recent decades of exceptional examples have thoroughly disproven. The finest Barbarescos from well-situated vineyards develop magnificently over decades, gradually softening their initially assertive tannins while gaining layers of complexity.

Modern Context

The expansion of Nebbiolo plantings throughout the Barbaresco zone reflects the variety's commercial success and critical recognition. From 484 hectares in the early 1990s, the denomination has grown to 733 hectares by 2019, with Treiso participating in this expansion. The increased focus on Nebbiolo has come partially at the expense of Barbera and Dolcetto, traditional varieties that once occupied more significant vineyard area.

The work of the Produttori del Barbaresco (one of Italy's finest cooperatives) alongside individual producers such as Angelo Gaja and Bruno Giacosa, has elevated the entire denomination's reputation. More recently, a number of smaller producers have embraced organic and biodynamic viticulture while employing traditional winemaking techniques, producing highly individual wines that emphasize terroir expression and longevity over immediate approachability.

As the Barbaresco zone continues to refine its understanding of individual MGAs and their distinctive characteristics, sites like Casot contribute to the growing complexity and nuance of the denomination's identity. The 2007 MGA system has provided a framework for this ongoing exploration, ensuring that even lesser-documented sites maintain their distinct identities rather than being absorbed into more famous names: a decision that preserves the potential for future generations to discover and articulate each vineyard's unique voice.