German Alt All Grain Beer Recipe KitAlt refers to an old school, top fermented style of brewing ale rather than a relatively modern bottom fermented lager. Altbier is especially associated with the city of Dusseldorf. Alts are a bit difficult to explain to the uninitiated kind of like a hoppy Oktoberfest? A very malty pale ale? You'll just have to try a glass of coppery brown, rich, caramelly, and bitter ale to get the idea. Looking for the Extract Version?