Definition of Old vines in wine
There are no specific regulations governing the term "vieilles vignes". After 20 to 25 years, the yields stabilize and tend to decrease, the vines are deeply rooted, and the grapes that come from them give richer, more concentrated, more sappy wines, expressing with more nuance the characteristics of their terroir. It is possible to find plots of vines that claim to be a century old.