The flagship of the estate, the Boca is 75% Nebbiolo, 20% Vespolina, and 5% Uva Rara. Spontaneous fermentation takes place in steel cuve and the three varieties are vinified separately. They are assembled prior to barrel aging, which lasts at three years in both 500L botti and a variety of larger formats, with no batonnage. No sulphur is added at any stage until a minimal dose at bottling. In 1996, the Conti sisters added the name 'il rosso delle donne' to add their mark to the family tradition.
Following in the path of their father, Ermanno Conti, the Conti sisters (Elena, Anna & Paola) represent the second generation to tend the family's single hectare in the Boca DOC, which is comprised of two hillside parcels, planted by Ermanno in 1971. The Conti family rigorously applies organic standards to their farming, does a manual harvest and continues to apply the same philosophy to the work in the cellar. Indigenous yeasts are used in fermentation and little to no sulphur is applied during the elevage and at bottling. In fact, several experimenal cuvees are bottled entirely without the appication of sulphur.
The Boca DOC, one of the smallest appellations in the Alto Piemonte, encompasses only twelve hectares spread over five villages (Boca, Maggiora, Cavallino, Prato Sesia, Grignasco) and split amongst eleven different vineyard owners. While Nebbiolo is the principal grape, Vespolina and Uva Rara are integral parts of the DOC as well. The soils are composed of limestone, clay and sand, similar in profile to Gattinara, which is a short 10km drive to the southwest. However, Boca has a distinctly different structure from its neighbor, Gattinara, more elegant and less masculine. The Boca DOC requires that the wines must be aged three years prior to release.