(TheDrinksBusiness) - Xavier Planty, head of Château Guiraud, maintains that the quality of organic wine in France is mixed.Planty first started to experiment with organic farming 15 years ago and his work bore fruit after his grand Ccru Sauternes Château Guiraud was awarded the Agriculture Biologique (AB) farming logo – France’s national logo for organic products since 1985. The 2011 vintage will be the first grand cru Sauternes to carry the logo, and one of the few châteaux in the Bordeaux 1855 classification to be certified organic.