In Champagne, the production of sparkling wines is based on the blending of wines from several years. As a reminder, three main grape varieties are used to make these nectars: Chardonnay, a white-skinned grape with white juice, Pinot Noir and Pinot Meunier, black-skinned grapes with white juice. Thanks to the diversity of crus, vintages and grape varieties, different styles of Champagne can be created, notably Blanc de Blancs.
Unlike a Blanc de Noirs Champagne, which is made from black grapes, Blanc de Blancs is generally made from 100% Chardonnay. During the vinification process, the winemaker uses only white grapes. It should be noted that this grape variety covers about 30% of the vineyards in Champagne. It is mainly grown in the Côte des Blancs region. Chardonnay flourishes on the terroir of this area, characterised by the outcrop of chalk veins and the presence of a layer of clay on the surface.
Chardonnay gives Blanc des Blancs Champagnes a pale yellow crystalline colour. With time, the colour tends towards gold, with green reflections.
It should be noted that the Blanc de Blancs designation may also be used even if other grape varieties are included in the blend. However, these must be white grape varieties authorised by the AOC Champagne specifications: Pinot Blanc, Petit Meslier and Arbane.