The appellation decree requires that 60 to 80% of vine plantations are of Tannat on a given estate in
order to obtain the AOP Madiran label.
A Madiran wine must contain a minimum of 50% Tannat. This can be increased to 100% in certain vintages. The wines must undergo a mandatory year of maturing before being marketed.
Complementary grape varieties that are authorised come from the Carmenet family, originating from the Adour basin in the Pyrenees. They include:
- Cabernet Franc 20%
- Cabernet Sauvignon 10%
- Fer Servadou 1%