21st Amendment Brewery announced the release of Hop Crisis, an oak-aged Imperial IPA with big malt flavor at 9.7% alcohol by volume and 94 IBUs (International Bittering Units – that’s bitter!). A few years ago, when hop prices shot through the roof and many brewers were forced to skimp on hops, the folks at 21A decided there was only one thing to do. They made a bigger, hoppier IPA and then aged it on oak for good measure.