Ruinart’s cellars, acquired in 1768, are amongst the largest in the region, and are Gallo-Roman in origin. Like most Champagne cellars, they are the product of ancient chalk mining, and extend 38 metres below the ground and are 8 km long. The chalk helps to keep the cellars at a constant 11 degrees Celsius. The chalk pits were classified as a historic monument in 1931. The Ruinart taste is greatly dependent on the aging in chalk pits: 3 to 4 years for non-vintages, and 9 to 10 years on average for a Dom Ruinart.

The House of Ruinart only distributes its champagnes through selected outlets. The Ruinart bottle is inspired by the first champagne bottles of the 18th century.