Only three grape varieties are authorized in the Champagne region's wines: Pinot Noir (38% of the vineyard), Meunier (32%), and Chardonnay (30%). Pinot Noir is the king of the champagnes of the Reims hills, whose calcareous and cool soils suit it. The region's wines distinguish themselves with red fruits aromas and a marked structure. Champagne is considered unique because it is the only white wine in the world that can be produced with black grapes, such as Pinot Noir.