What style of beer typically ferments at lower temperatures?

Lagers are a style of beer that typically ferment at lower temperatures compared to ales. The fermentation process for lagers occurs between 45°F to 55°F (7°C to 13°C), which is cooler than the fermentation temperatures for ales, which usually range from 60°F to 75°F (15°C to 24°C).

This cooler fermentation temperature is due to the yeast strains used in lagers, primarily bottom-fermenting yeasts such as Saccharomyces pastorianus, which work more effectively at lower temperatures. This results in a clean, crisp flavor profile characteristic of lagers, with fewer fruity esters and phenols compared to ale fermentation.

Although stouts, pilsners, and other types can fall under lager or ale categories, the defining factor for lager specifically is its fermentation temperature, making it the correct choice in relation to the question posed.