Pilsner Alternative is a term used to describe two types of beer: LAGER and ALE. LAGER is a type of beer that is brewed using bottom-fermenting yeast and stored at cold temperatures for several weeks or months. ALE is a type of beer that is brewed using top-fermenting yeast and stored at warmer temperatures for a shorter period of time. Both LAGER and ALE are popular types of beer, but LAGER is generally considered to be the more traditional style.