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The Heidelburg Tun in Germany. A very dilute
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"Everybody has heard of the great Heidelberg Tun, and most people have seen it, no doubt. It is a wine-cask as big as a cottage, and some traditions say it holds eighteen hundred thousand bottles, and other traditions say it holds eighteen hundred million barrels. I think it likely that one of these statements is a mistake, and the other is a lie. However, the mere matter of capacity is a thing of no sort of consequence, since the cask is empty, and indeed has always been empty, history says. An empty cask the size of a cathedral could excite but little emotion in me. I do not see any wisdom in building a monster cask to hoard up emptiness in, when you can get a better quality, outside, any day, free of expense." - Mark Twain, A Tramp Abroad
I think that it is fair to say that within the past few years the oak barrel (in its various iterations and usages) has joined the hop as one of the hottest trend in the craft beer world. And for me it is almost more exciting than the hop. Here's why...
