This wine like all Pouilly-Fume is 100% Sauvignon Blanc, however, this is a select reserve bottling of old vines grapes by the Maison de la Colline estate. It shows delectable herb and citrus notes and considerable complexity. A fine wine and a great value.The La Craie Pouilly Fumé is a wine, produced by Maison de la Colline. The wine is produced in the Loire Valley region of France. It is made from the Sauvignon Blanc grape.