There is no diplomatic answer to that! Historically, the only region in France to list the grape varieties on the label was Alsace but more producers - especially in Languedoc-Roussillon - are following their example largely thanks to the many so-called 'flying winemakers' from the New World now working in southern France. I have come across one or two Burgundy and Chablis producers who put 'Pinot Noir' and 'Chardonnay' on the label but they are very few. Quite simply the French expect folk to know what grapes their wines are made from. But since we in the UK now drink more Australian wine than we do French, partly it is said because the wines are consumer friendly in that they tell us what they're made from, some French producers are questioning their intransigence. Others argue that with wines such as Chateauneuf-du-Pape which permit 13 different varieties in the blend would need too big a label to fit them on...