Brut Premier uses all three Champagne grape varieties from more than 40 different plots. 40% pinot noir, 40% chardonnay, 20% pinot meunier - 5% of wines are matured in oak casks with weekly batonnage and 10% of reserve wines are matured in casks. Partial malolactic fermentation. The wine is an assemblage of six years of harvesting, a part of which comes from the Louis Roederer reserve wine collection, matured in oak casks for several years. It is matured for three years in the cellar and rested for six months after disgorgement to perfect maturity.