 The blending components are mostly similar to the DOC wine in regards to the percentages of Sangiovese and Canaiolo but differ in that now collectively Trebbiano, Ciliegiolo and Montepulciano can not account for more than 10% of the blend.The ancient part of town is still partly surrounded by medieval walls.The "Torre di Guardia", a defensive tower dating back to the 13th century, is situated outside the walls.