How is the process of brewing lager beer different from other types of beer?

The process of brewing lager beer is different from other types of beer mainly because of the yeast and fermentation temperature used. Lager beer is brewed with bottom-fermenting yeast at cooler temperatures, resulting in a cleaner and crisper taste compared to ales, which are brewed with top-fermenting yeast at warmer temperatures. This longer, colder fermentation process gives lager beer its characteristic smoothness and lightness.