The Colli Euganei DOC, originally established in 1969, was modified in December 2010 when the Fior d'Arancio wines were promoted to DOCG status. The Colli Euganei are the hills which rise up from the Po-Venetian plain a short distance south-west of Padova (Padua). Their volcanic origin means their soils are rich in minerals and trace elements not found in other Venetian terroirs, and are particularly well suited to the production of wines with complex organoleptic profiles. The neighboring Colli Berici are, by contrast, made up of carbonate soils and marine fossils from an ancient seabed.
Like Breganze to the north, the DOC's viticultural zone is best known for a particular style of sweet wine, rather than its dry wines. Breganze has its Torcolato; the Colli Euganei has its Fior d'Arancio DOCG muscat (moscato). Nevertheless, Colli Euganei retains its own moscato style, although this is now exclusively made from Moscato Giallo and Moscato Bianco. In addition to this, the DOC's portfolio has expanded to cover more than 25 styles, including a standard blended bianco and rosso (white and red, with their corresponding foaming spumante and aged riserva forms) and no fewer than 15 varietals.
Red Bordeaux grapes Merlot, Cabernet Sauvignon and Cabernet Franc have a significant presence here, as they do across Veneto. Interestingly, erstwhile Bordeaux stalwart Carmenere is also present here, in its continuing popularity surge across north-eastern Italy. Such local varieties as Raboso, Tai and Serprino (the local name for the Prosecco grape) are also made into varietal wines here, as are the reliably marketable international favorites Chardonnay and Sauvignon.