Great wine is made in the vineyard but the decisions taken on which lots make the final blend of the Grand Vin is crucial not only to the quality but the finances of the estate (as the Grand Vin can go for up to three times as much as the second wine).

Listen to Lilian Barton Sartorius of Ch Léovillle Barton, Hervé Berland of Ch Montrose and Eric Kohler of Ch Lafite discuss what they look for when blending the world’s greatest wines.