At A Glance
- **Location:** Frazione Valdivilla, Santo Stefano Belbo, Cuneo province, Piedmont
- **Founded:** 1967 by Egidio and Angela Bosio
- **Current generation:** Valter Bosio, Luca Bosio (winemaker), Rosella Bosio
- **Key appellations:** Moscato d'Asti DOCG, Barolo DOCG, Barbaresco DOCG, Nebbiolo d'Alba, Barbera d'Asti
- **Second winery:** Belcolle, acquired 2015, Verduno and Langhe hills
- **Certifications:** Organic, Equalitas, VeganOK, IFS, Amfori
The Producer
Bosio Family Estates started in 1967 when Egidio and Angela Bosio planted roots in Santo Stefano Belbo, a town in southern Piedmont whose name is already inseparable from Moscato d'Asti. The estate still sits at the same address in Frazione Valdivilla, now run by their son Valter, Valter's son Luca as winemaker, and Rosella Bosio. Three generations, one postcode.
The estate's scope changed sharply in 2015, when the Bosio family acquired Belcolle, a second winery operating ten hectares of vineyard across Verduno in the Langhe and the Astigiano. That purchase moved Bosio out of purely aromatic-white and everyday-red territory into classified Nebbiolo ground: Monvigliero in Verduno, Bussia in the Langhe, and Pajorè in Treiso. Luca Bosio and enologist Mario Albrito now run winemaking at Belcolle alongside the core Bosio operation. The cellar approach across both sites follows what Luca calls acting by subtraction: organic farming, minimal intervention, and a preference for allowing grape and place to arrive in the glass without correction.
Place
Santo Stefano Belbo sits in the Cuneo province of southern Piedmont, in the Moscato d'Asti production zone. The hills here are planted almost entirely with Moscato Bianco, the grape behind Asti Spumante and Moscato d'Asti, two of Italy's most distinctive sweet and lightly sparkling whites. The vineyards Bosio farms span five communes across the Langhe and Astigiano hills: Santo Stefano Belbo, Castiglione Tinella, Mango, Costigliole d'Asti, and Castagnole Lanze.
Belcolle's vineyards sit further north, in Verduno and across the Langhe hills toward Astigiano. Verduno is one of the smaller, less visited communes within the Barolo production zone, known for a lighter expression of Nebbiolo than the more concentrated style that comes from Serralunga d'Alba or Barolo village itself. The Monvigliero vineyard, a named MGA (Menzione Geografica Aggiuntiva) site in Verduno, produces Nebbiolo that is typically pale in colour and high in floral perfume. Bussia, a large and prestigious MGA in the Langhe, and Pajorè in Treiso, a Barbaresco MGA, complete Belcolle's Nebbiolo holdings. The Turna Lunga site, also in Belcolle's portfolio, supplies fruit for the Moscato d'Asti DOCG.
Soil And Site
The southern Langhe hills around Santo Stefano Belbo are calcareous clay over soft Helvetian-era sedimentary soils, well suited to Moscato Bianco and the aromatic varieties that form the base of the Bosio core range. At Belcolle, the Verduno and Langhe sites sit on the pale limestone and sand typical of the northern Barolo communes, soils that tend to produce Nebbiolo with relatively open perfume and tannin that softens earlier than the iron-rich clay and Tortonian marl of Serralunga.
Story
Egidio and Angela Bosio founded the estate when Moscato d'Asti was still largely a local wine, sold in bulk or consumed near where it was grown. The commitment was to a specific place and a grape that the wider market had not yet fully valued. Over the following decades the family built the estate around the aromatic whites of the southern Langhe and added Piedmontese reds, Barbera d'Asti and Nebbiolo-based bottles, to complete a range with regional breadth.
The Belcolle acquisition in 2015 was a different kind of decision. Rather than expanding the core Bosio winery, the family bought an existing operation with established vineyard positions in classified Nebbiolo territory. Luca Bosio took on the enologist's role at Belcolle alongside Mario Albrito, and the named parcels at Verduno, Bussia, and Treiso came with the purchase. The move meant Bosio could place wines from Monvigliero and Pajorè without planting from scratch or waiting for young vines to reach working age. Organic certification, Equalitas sustainability accreditation, and VeganOK approval followed, along with IFS and Amfori certification covering production and sourcing standards.
Vineyards And Cellar
The Bosio core vineyards spread across Santo Stefano Belbo, Castiglione Tinella, Mango, Costigliole d'Asti, and Castagnole Lanze. Organic farming across both operations means no synthetic herbicides or pesticides, and the mineral balance of the Moscato parcels is maintained without chemical correction. At Belcolle, the ten hectares span three distinct zones: Verduno, the Langhe hills, and the Astigiano.
Luca Bosio's phrase, acting by subtraction, describes a cellar approach built on minimal addition rather than correction. For the Moscato d'Asti Turna Lunga, fermentation takes place at 15 degrees Celsius to preserve aromatic lift, followed by two months of lees ageing to add a fine texture to the palate, and bottling at 5.5% alcohol with the residual sweetness characteristic of Moscato d'Asti DOCG. The approach keeps the grape's natural fragrance intact rather than pushing ripeness or oak.
Wines
The Bosio range begins in Moscato d'Asti country and extends to Barolo and Barbaresco through the Belcolle label. From the core operation, the estate produces Moscato d'Asti alongside Barbera d'Asti, Nebbiolo d'Alba, Barolo, and Barbaresco, giving the Bosio range Piedmontese breadth from light aromatic white to tannic Nebbiolo red.
At Belcolle, the MGA wines carry named-site labels. The Monvigliero Barolo is Verduno's most distinctive parcel, producing Nebbiolo that is paler and more florally expressive than the wines from southern or central Barolo communes. The Bussia Barolo comes from a large, storied site in the Langhe associated with age-worthy, fuller-textured Nebbiolo. The Pajorè Barbaresco, from Treiso, sits in the eastern Barbaresco zone and tends toward a softer, earlier-drinking style than the more austere Barbaresco MGAs closer to the village of Neive. Belcolle's Moscato d'Asti DOCG, sourced from the Turna Lunga site, rounds out the second label with an aromatic white that connects both operations to the southern Langhe.
In The Glass
The Turna Lunga Moscato d'Asti opens with acacia honey, lime blossom, and sage: a lifted, delicate perfume typical of Moscato Bianco grown on calcareous southern Langhe soils. On the palate, ripe apricot and gooseberry give sweetness with fruit clarity rather than weight. Bright acidity runs through the finish and stops the wine from sitting heavy, a balance made easier by the low 5.5% alcohol and the two months of lees contact that give the palate a little more texture without adding body.
The Barolo and Barbaresco wines from Belcolle move in the opposite direction: Nebbiolo at full ripeness, with the grape's characteristic high tannin and acidity, structured for ageing and built for the table. The Monvigliero Barolo leans toward pale colour and floral, almost rose-edged perfume where Verduno's sandy soils do their work. The Bussia Barolo adds depth and grip. The Pajorè Barbaresco offers softer access into the Nebbiolo range. Across the Belcolle Nebbiolo wines, the acting-by-subtraction philosophy keeps cellar treatment behind the grape and site rather than in front of it.
A Bottle To Understand It
Belcolle Moscato d'Asti DOCG Turna Lunga. Moscato d'Asti is a low-alcohol, lightly sweet white wine from Moscato Bianco grown in the southern Langhe, fermented gently in sealed tanks and bottled with a fine mousse at under 6% alcohol. The Turna Lunga version ferments at 15 degrees Celsius and spends two months on lees before release. In the glass it gives acacia honey, lime blossom, and sage on the nose, then ripe apricot and gooseberry on the palate, with bright acidity carrying the finish and keeping the sweetness clean. At 5.5% alcohol, it is a wine for early drinking, for the end of a meal, or alongside fresh fruit and soft cheese.
Anecdote
In 2015, the Bosio family bought Belcolle, a winery they had not built. The vineyards came with the purchase: ten hectares already in the ground, including Monvigliero in Verduno, one of the smaller and less visited Barolo communes, where Nebbiolo grows pale and perfumed on sandy soils rather than the concentrated, iron-heavy style of Serralunga further south. Luca Bosio, who had trained as an enologist, stepped into the role alongside Mario Albrito at Belcolle from the start. What the acquisition gave the family was immediate: named-parcel Barolo and Barbaresco from established vines, without the decade of waiting that comes with planting on new ground. Monvigliero, Bussia, Pajorè: three MGAs, three different Nebbiolo arguments, all in place on the day the keys changed hands.
Final Word
Bosio Family Estates operates across two distinct zones of Piedmont: the aromatic, fragrant south of Santo Stefano Belbo and the Nebbiolo-dominated Langhe of the Belcolle parcels. The 2015 acquisition is what makes the range coherent: a family with deep roots in Moscato country now farming named Barolo and Barbaresco sites under the same organic, low-intervention principles. The Turna Lunga Moscato d'Asti is the clearest point of entry, and the Belcolle Nebbiolo wines extend the story into the heart of Piedmont's prestige red appellations.