In the middle of the Gargano National Park, the first limestone pole in the South. Valentina Passalacqua has an absolutely organic approach to viticulture, having developed a great knowledge of the terroir in which her company stands. Valentina, after several years of production, felt the need to isolate within their vineyards some parcels characterized by exclusively limestone soil type kimmeridgiano, hence was born the now famous Calcarius Project: mineral wines, genuine and uncompromising. The winery breeds autochthonous varieties that are the result of a historical-cultural contamination that has its roots in Magna Graecia: Nero di Troia, Bombino, Greco, Falanghina, Negramaro and Aleatico above all. The non-interventionist approach in the cellar does the rest. What is indicated on all the labels are the atomic number (20) and the atomic weight (40.08) of the chemical element of calcium (Ca).