A thick layer of gravel laid down during the Quaternary Period. Predominantly clay sub-soil from the Tertiary Period. At the summit of the gravel deposits, there is also a fine layer of clay of lacustrine origin. Hand picking. A first selection of grapes on the vine. Mechanical sorting of the grapes by vibration, followed by hand sorting. Temperature-controlled conical stainless-steel tanks. Maceration for 18 to 21 days. Aeging 18 to 20 months, 30% new barrels. Fining with egg white.