Minimum 85% Glera. •Sparkling versions must be fermented in pressurized tanks or autoclaves •Minimum alcohol level: 10.5% for Bianco; 11.0% for Spumante and Spumante Rosé •Residual sugar: Spumante can range from brut nature (zero dosage) to demisec; Spumante Rosé can range from brut nature to extra dry •Aging: Spumante Rosé requires a minimum of 60 days of fermentation in the autoclave (ERD = January 1, V+1) •Treviso or Provincia di Treviso •Trieste or Provincia di Trieste (or, in Slovenian, Trst or Pokrajina Trst)