Mosel museum: Old vintages from Staffelter Hof

Jan gingerly prises the cork out of the 1971 Eiswein

I admit to a bit of a thrill when the cork's popped on a properly ancient bottle of wine. The sense of expectation is palpable - will the cork make it out in one piece, is the liquid even still drinkable?

At this year's ProWein, Weingut Staffelter Hof's Jan Matthias Klein treated a few friends and fell…