Halcyon Barrel House specializes in producing small batches of wild and sour ales, using European-style brewing traditions of mixed fermentation and aging in wood barrels, as well as bottle and keg conditioning. Halcyon refers to a past that we remember fondly. We are looking back to older, more traditional brewing methods to inspire how and what we brew today. Halcyon : Denoting a period of time in the past that was idyllically happy and peaceful.