In 1825, a ship containing several cases of beer from the UK was lost to the English Channel. More than 160 years later, Dr. Keith Thomas salvaged intact bottles from the sucken wreckage and discovered, much to his delight, viable yeast inside. After propagating the yeast over several months, he emerged with actual 1825 yeast. Couple that with a porter recipe from 1850, and you have Flag Porter, one of the most authentic old brews around. Chocolate notes abound, with even a subtle, pleasant aroma of black forest cake batter. In the taste, the bitter grains, as well as the coffee notes, are slightly more noticeable. While we wouldn't go so far as to call the final product exceptionally smooth, it is certainly well-rounded and authentic.