Tenuta San Pietro is a historical winery of the DOCG Gavi area located in Tassarolo, on the Piedmont hills 300 meters above sea level, near Alessandria. Its vines enjoy the winds coming from the nearby Ligurian Sea and, thanks to an excellent solar exposure and a favourable microclimate, its tuffaceous and clayey grounds produce exclusive grapes and high quality wines. The passion for research is the hallmark of the Company, constantly committed in a careful recovery of biodiversity, and in the preservation of its historic vineyards survived to the terrible epidemic of phylloxera, one of the major disasters in the history of agriculture. It was a deadly parasite that fed on the roots of the vines and that, once attacked a vineyard, destroyed it completely. Phylloxera, coming from America, struck with violence towards the end of the nineteenth century in Europe. The vines on own roots are the last witnesses of a past era, such as the Gorrina vineyard, the evidence of the uniqueness of this heritage. All the vineyards of Tenuta San Pietro are cultivated according to the criteria of the Biodynamic Agriculture, based on the antroposophy of Rudolf Steiner.