Cave means cellar in French. The chief winemaker of a Champagne House-the Cellar Master-is called Chef de Cave in French. The Champagne cellars are hewn out of chalk, some of them on the site of former crayères (ancient Gallo-Roman chalk pits). Dark and still, they provide a cool even temperature of 10-12 °C/50-54 °F and the right degree of humidity that are ideal for the aging of champagne.