Champagne Champagne Louis Roederer - The Collection 245 cuvée is the Maison?s 245th blend since its creation. It is made with 31% Réserve Perpétuelle and completed with 59% of the 2019 harvest: Chardonnays mostly, and Pinots noirs and Meuniers from the Marne Valley. Freshness, precision and fineness: this is Collection, an evident champagne that reveals complex, precise flavors throughout its tasting.