Production is intentionally low and firmly in the hands on Mother Nature. The traditional saying is that a single vine should produce a bottle of wine. Here, though, a single vine produces about a glass of wine!
Wines are fermented in barrels. The yields are sorted and each parcel is identified and isolated in a batch of barrels, in order to judge whether or not it can be used in the Grand Vin after fermentation. Several tastings from each barrel are then performed in order to ensure a rigorous selection for the Grand Vin.