At what temperatures are ale yeasts typically brewed?

Ale yeasts are typically brewed at warmer temperatures, generally ranging from about 60 to 75 degrees Fahrenheit (15 to 24 degrees Celsius). This temperature range is ideal for the fermentation process that ale yeasts undergo, as it allows the yeast to be most active, leading to a more vigorous fermentation. The warmer temperatures favor the production of esters and phenols, which contribute to the characteristic flavors and aromas associated with many styles of ale.

In contrast, cooler and freezing temperatures can slow down or halt the fermentation process, potentially leading to undesirable results. Moderate temperatures might not exploit the full potential of the yeast’s activity, which is crucial for the desired flavor profile in ales. Thus, the choice of warmer temperatures aligns perfectly with the optimal conditions for brewing ales.