... barrels have to be new or old is a hotly debated issue; we had little information on this and could not take it into account in our regressions. 11 Fining can also be achieved with bentonite or ... is little that can be done to correct an error in one of the various and delicate steps which extend over several years for every vintage, though nowadays it is said that a good chemist can ... leaves us with six categories. The second rating is due to Bettane and Desseauve (2000), editors of the Revue du Vin de France, who classify wines into five groups (3, 2, 1 and 0 stars, and unclassified)....