The higher up the hierarchy of appellations, the higher the quality of the terroir, and the more demanding the specifications in terms of grape quality and yield.
The grape varieties authorized for each appellation are precisely defined. AOC plots are planted with regional grape varieties: Grenache, Syrah, Cinsault, Viognier... For IGP vineyards, regional grape varieties are planted alongside those from other regions: Merlot, Cabernet Sauvignon, Chardonnay or Sauvignon.