Along with lager, ale is one of the two main groups of all beer styles. Often the term ale is put on the same level as the term beer, which is incorrect, since an ale is a beer style which is to be classified under the generic term beer.
Since the beer style ale belongs to the top-fermented beers, all top-fermented beers are also to be classified in the class of ales ( Pale Ale , India Pale Ale , Red Ale, Dubbel, Tripel, Quadrupel, Saison, Lambic, Weizen , Porter , Stout etc.) . Top-fermented beers are fermented at around 15 ° C - 27 ° C using top-fermenting yeast.
This form of fermentation has its name for the following reason: Since top-fermenting yeasts form longer sprout associations during fermentation than bottom-fermenting yeasts, more CO 2 is collected there, which drives the yeast particles to the surface.