Ale is a type of beer, brewed using a warm fermentation method. In mediaeval England, the term referred to a drink brewed without hops.
A glass of real ale from an English pub
Cask ale handpumps
Beer styles differentiate and categorise beers by colour, flavour, strength, ingredients, production method, recipe, history, or origin.
Rauchbier, a smokey style of beer
Saccharomyces cerevisiae yeast, used in brewing ale