Strong ales are sometimes referred to as old ales, stock ales or winter warmers. These beers are higher alcohol versions (typically between 5.5-7 percent ABV) of pale ales, though not as robust or alcoholic as barley wines. Usually a deep amber color, these brews generally have a sweet malty palate and a degree of fruitiness. If bottle conditioned, strong ales can improve for several years, in some cases eventually obtaining sherry-like notes.