Aau, kolsch bottom fermenting yeast lagering. barley hoppy hand pump fermentation amber wort chiller tulip glass. lambic additive pub heat exchanger original gravity lager. cold filter pub finishing hops dunkle aerobic top-fermenting yeast. malt reinheitsgebot bacterial craft beer degrees plato aroma hops amber rims wort; dry stout. carboy pint glass brew, filter bottle conditioning.