The wine is made for the main part from the Sangiovese grape varietal ( minimum 70 % ) , blended with Canaiolo Nero ( 10 % â `` 20 % ) and small add of other local varieties such as Mammolo . The wine is made primarily from the Sangiovese grape varietal ( known locally as Prugnolo gentile ) ( minimum 70 % ) , blended with Canaiolo Nero ( 10 % â `` 20 % ) and small amounts of other local varieties such as Mammolo .