For over 20 years I have staged what I call The Last Supper to mark the end of vintage at Coldstream Hills, the Yarra Valley winery I founded in 1985. The wines have always come from my personal cellar, thus it has survived the changes in ownership of Coldstream Hills over that time. Since 1996 Coldstream Hills has been part of what has become Treasury Wine Estates, but that has in no way changed my attitude to Coldstream…