FERMOALE AY4

Very versatile yeast of American origin for the production of American and English ales (e.g. APA, IPA, Imperial / Double IPA, Imperial Stout, Imperial Porter, Brown Ale, American Barley Wine etc.). It has an excellent fermentation capacity, a high fermentation speed and a medium flocculation. FERMOALE AY4 develops a neutral and pure aroma profile with very low diacetyl values.

Aroma and flavor characteristics:

Delivers light malty flavour notes with a touch of citrus. Esters are mild to give a balanced and clean, neutral finish.

Eigenschaft
Allergen-free
Eigenschaft
GMO free

Specifications

Parameter Minimum Maximum Unit
Apparent attenuation 84 %
Fermentation temperature (°C) 16 23 °C
Fermentation temperature (°F) 61 73 °F
Flocculation Low
Alcohol tolerance 10 11 % ABV
Total esters Low
H2S (sulphur notes) Low
POF (phenolic notes) Negative
STA-1 Negative

Remarks

If possible, store in vacuum-sealed packaging, dry and odor-free at 4°C / 40°F.

Avoid contact with air. Do not freeze.

Once the packaging has been opened, the yeast should be used immediately.

AEB Brewing Yeast are tested to a high and rigorous standard and are only released to the market when all quality, safety and reliability parameters are met.

Use

It is generally recommended that active dry yeast is pitched directly into the wort without prior rehydration. If direct pitching is not feasible the yeast can be hydrated and pitched in liquid form. 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.

Packaging

Available in 500g net foil packs containing 1kg.
Available in 500g net foil packs containing 10kg.
Available in boxes containing 20 x 11.5g sachets.

Food safety

This product is GMO free.
This product is allergen-free.

Durability

Shelf life is 36 months from production date.
Do not use after the expiry date shown on the pack.

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