What are the characteristics of the Champagne soil?

A wine terroir combines an identifiable physical and biological environment(soil, subsoil, topography and climate) with applied winemaking practices, conferring distinctive characteristics on the produce of these vineyards.

A wine terroir

Limestone subsoil

The limestone subsoil (comprising chalk, limestone, sandstones and marls) provides good drainage and also explains why certain Champagne wines have a distinctly mineral taste.

Champagne chalk

The Champagne chalk is made up of the skeletons of marine micro-organisms and mollusc fossils from the Secondary Era. It is highly porous.

This means it acts as a reservoir, storing 300-400 litres of water per m3 which provides the vines with a steady supply of water even in the driest summers.

Limestone subsoil / Champagne chalk