Since 1993, the production spumantisitca been conveyed in the name Trent (White, Rosè and reserve). The chardonnay grapes are allowed (the main grape), Pinot Blanc, Pinot Noir and Pinot Meunier. A minimum stay of 15 months on the lees for Trent and Trent White Rose, 36 months for the Trent Reserve (produced only in the type brut). A stop on the lees for 24 months or more allows the label to indicate the year of production of grapes (if they originate from a single vintage year).
