Brewers Yeast

Ale Yeast

Ale yeast strains are best used at temperatures ranging from 10 to 25°C, though some strains will not actively ferment below 12°C (33). Ale yeasts are generally regarded as top-fermenting yeasts since they rise to the surface during fermentation, creating a very thick, rich yeast head. That is why the term "top-fermenting" is associated with ale yeasts. Fermentation by ale yeasts at these relatively warmer temperatures produces a beer high in esters and higher alcohols, which many regard as a distinctive character of ale beers.

Click on the following topics for more information on brewer's yeast.

Related Topics on Brewers Yeast

• Introduction to Brewers Yeast
• Ale Yeast
• Lager Yeast
• Yeast Life Cycle During the Beer Brewing Process
• Yeast Nutritional Requirements in Brewing Beer
• Yeast Byproducts in Brewing Beer
• Yeast Strain Selection in Brewing Beer
• Pure Culture Maintenance
• Yeast Propagation and Scale-Up
• Culture Contamination
• Yeast Washing
• Yeast Viability and Replacement
• Yeast Storage
• References