What is the fermentation temperature for lagers?

Lagers are a type of beer that undergo fermentation at colder temperatures compared to other beer styles, such as ales. The fermentation process for lagers typically occurs between 45°F to 55°F (around 7°C to 13°C). This cooler fermentation environment is crucial as it allows specific lager yeast strains to produce cleaner flavors and a crisp finish, which are characteristic of this beer style. By fermenting at lower temperatures, the yeast works more slowly, leading to a smoother and less fruity profile, which is a signature of lagers.

In contrast, ales are fermented at warmer temperatures, usually between 60°F to 75°F (approximately 15°C to 24°C), which promotes more active yeast behavior and the production of esters and phenols that contribute to the fruitier and spicier flavor profiles typical of ales. Understanding the importance of fermentation temperature helps brewers control the final taste and quality of the beer they produce.