Before hazy IPAs and pastry stouts swept the nation, before sour ales went mainstream and bomber bottles were overwhelmed by cans from trendy new breweries, there was a single beer maker in Colorado with the most cachet, the longest lines and the geekiest fans: Avery Brewing. On rare but highly anticipated weekends beginning in 2009, Avery would host releases for the latest beer in its Barrel Aged Series — or “gold foils,” as they were called, because of the elegant little foil tops that Avery placed over the bottle caps — and they would draw hundreds of frenzied beer fans, who would...