Alto Monferrato is a system of hills between 200 and 400 metres, with a warm temperate climate but fairly well ventilated. These climatic conditions have allowed the Cortese vine to be cradled among the hills for over three centuries. Its presence in Alto Monferrato is attested by a letter from the factor of the castle of Montaldeo to the Marquis Doria, dated 1659. Serica is a reminder of the delicacy of this wine.