The extra Dry of Zardetto is produced by the grapes coming from the Treviso hills. In this area the Glera grapes are historical. It is characterized by a good structure given by the moraine territories with an elegant sugary aroma. The DOC Treviso Prosecco denomination is the classic one and it is made by 100% Glera grapes. The production area is wide and it consists in the DOC hill Prosecco  area and in the north east one compared to Conegliano. The harvest takes place in the first half of September.