Trento DOC (Denominazione di origine controllata) is an appellation for white and rosé sparkling wine made in Trentino, Italy.
After graduating from the Forschungsanstalt für Garten- und Weinbau in Geisenheim/Rheingau, Germany, Ferrari gained winemaking experience in the French Champagne producing town of Épernay.
Trento DOC has more rigorous requirements than Methodo Claissico or Méthode Traditionnelle: The wine has to be made using techniques characteristic of the region, including how the vines are planted, cultivated, pruned, and hand-harvested (e.g., see photo of 'Pergola Trentino').
Thus ensuring Trento DOC on the label means the wine is of the highest quality and made using these very strict standards.
Trento DOC wines are distinguished by a delicate, rich bouquet, a dry, smooth, rounded and elegant flavor, and a straw-yellow color.