Their vineyard is planted with Cabernet sauvignon (50%), Merlot (25%), Cabernet franc (15%), Malbec (5%) and Petit verdot (5%). The percentage of each variety that goes into the final blend changes with the season as factors such as fruitfulness and fruit set vary. The greatest influence they have over the quality of this wine is deciding when to pick each variety. This determines not only the flavours but the quality of tannins, the acid and alcohol levels. These varieties ferment on skins for around 12-14 days. This is followed by 22 months of barrel maturation, with 25% of the blend in large format oak (1500L or larger), and 30% in new barriques (225L). The remaining wine is matured in 2-5 year old barriques. Minimal fining and filtration is carried out prior to bottling.