According to professor Denis Dubordieu at the wine university of Bordeaux there are five main factors that determines the quality of a vintage: 1) a rapid and early flowering; 2) moderate lack of water during early summer (at “nouason”, grape set); 3)end of shoot growth towards veraison (change of colour of the grapes) so that the energy goes to ripening the grapes; 4) dryness and moderate heat during maturation of the grapes; and 5) good weather during harvest (not rain and humidity). Read more about this and how it turned out in 2007 on NewBordeaux.blog.co.uk.
