Care starts in the vineyard, where nurturing of old vines and severe green pruning combine to limit yields to little over 20 hl/ha. For the whites, the Roussanne is fermented in barrel for 6 months (mainly new oak), the other grapes in temperature-controlled enamel-lined tanks. Malolactic is blocked to preserve acidity. The Cuvée prestige is 100% barrel-fermented, using 2/3 new oak, with 12 months ageing.
Since 1993, 80 to 90% of the red grapes are destemmed. fermentation is in a mixture of cement and stainless steel tanks. The straight Côtes du Rhône macerates 12-15 days on the skins, before 6-9 months ageing in foudres. The Côtes du Rhône Villages has 15-18 days, with manual pigeage each day. It is aged 50% in barriques, 50% in foudre. 'Les Garrigues' gets a full 18 day maceration, manual pigeage twice a day, followed by ageing in both foudres and barriques. The red Châteauneuf has a 20 day cuvaison in cement tanks, 12 months ageing in barrel and large oak cask, then 6 more months in vat before a very light filtration and bottling. 'Chaupin' macerates 21-23 days on the skins, with regular pigeage, before 18 months in large and small oak casks. The Vieilles Vignes has 23-25 days of cuvaison, oak-ageing featuring a limited percentage of new oak, and further time in vat before a gentle clarification and bottling.