disgorgement and adding sweet liquor procedure, traditional making champagne sparkling wine from chardonnay and pinor noir grapes

alcohol ambonnay background basement beverage blanc bottle bottles cave caves cellar chalk champagne disgorgement drink dust epernay ferment fermentation france french grand cru house interior landmark liquor maille manufacturing old production reims rows sparkling sparklingwine tasting traditional tunnel tunnels underground vineyard vintage wall wine making winecellar winemaking winery adding sweet procedure chardonnay pinor noir grapes