The other day I picked up a magnum of Hermann J. Wiemer 2008 Dry Riesling in magnum. It had me thinking: Magnums are so sexy. How come almost no one in the Finger Lakes offers riesling in magnum? I was going to say that no one in the Finger Lakes bottles their wine in larger formats, but of course that’s wrong. You can find Red Cat in magnum. Fox Run’s Ruby Vixen, , Arctic Fox, Chardonnay perhaps. Some of Bully Hill’s offerings, I’m sure. But why not riesling? After all, the world’s finest riesling ages gracefully for many years, and…