Paolo di Marchi has run Isole e Olena since the age of 20. Paolo avoids the Cabernet Sauvignon many of his neighbors have begun to incorporate into their Chiantis, believing it overshadows the Sangiovese. The flagship wine at Isole e Olena is Cepparello, a barrique-aged Sangiovese classified as an IGT – because at the time of its creation in the…