The original session beer. Historically, this style originated around the start of the 20th century in England. This genre of ales is divided into substyles differentiated on alcoholic strength and hop bitterness: ordinary bitter; special/extra bitter and extra special bitter (ESB). ESB's are the stronger examples of this style. Most examples of this style will be copper in color with a mild caramel-malt aroma. Some examples will also have hop and fruit notes in the aroma. The flavor will typically be bitter with caramel, noticeable fruity esters and earthy or floral hops. A very drinkable ale.