It?s one of the big mysteries - up there with crop circles, the second gunman in Dallas, and why anyone on earth eats Marmite. Why don?t people drink red wine cold? It?s summer, it?s hot, you love red wine, and what?s the answer? A big warm glass of Zinfandel? Body-temperature Cabernet? The thing is, there are a number of red wines out there that chill down just fine. The main consideration is this: If you have a big, tannic red, serving it cold will accentuate those tannins and make it astringent and harsh. But a lighter red, not so heavy on the tannins and bright with fruit, well, chuck it in the cooler and go.