FERMOALE AY4 - American Ale Yeast

FERMOALE AY4

• Top Fermenting
• Suitable for the production of British and American Ales.
  

Click here for Technical Data Sheet

Very versatile yeast of American origin for the production of American and English style Ale beers (eg. APA, IPA, Imperial / Double IPA, Imperial Stout, Imperial Porter, Brown Ale, American Barley Wine, etc.). It has an excellent attenuating capacity, a high fermentation speed and high flocculating. FERMOALE AY4 develops a neutral and clean aromatic profile with very low diacetyl levels.

Beer styles:  This is a very versatile yeast that can be used to brew a wide range
of American- and English-style ales, including pale ales (IPA, APA, EPA), brown ales and porters. 

Flavour & Aroma Profile:  Delivers light malty flavour notes with a touch of citrus. Esters are mild to give a balanced and clean, neutral finish with low diacetyl levels.

Performance and Application:  Medium attenuation and high flocculation and high fermentation speed

Brewing Properties:

• Yeast Strain:  Saccharomyces cerevisiae
• Origin of yeast strain: USA
• Apparent Attenuation: 84% | Medium
• Fermentation Temperture: 16-23°C 
• Flocculation:  High
• Alcohol Tolerance:  10 - 12% ABV
• Total Esters:  Medium
• H2S (Sulphur notes):  Low
• POF (Phenolic Notes):  Negative
• STA-1:  Negative
  

Dosage: 50 - 80g/hl of cool wort at 16-23°C / 61-73°F

Instructions
Direct:  It is generally recommended that active dry yeast is pitched directly
into the wort without prior rehydration. 

Rehydration: To rehydrate dissolve the dry yeast in sterile water or in wort at 16-
23°C / 61-73°F at a ratio of 1:10. Stir gently and leave for approximately 20 minutes. Gently stir again and add to the cooled wort in the fermenter.

To avoid yeast stress, ensure temperature fluctuations are minimal.