English ale yeast selected for its fast fermentation character and its ability to form a compact sediment at the end of fermentation, helping to improve beer clarity. Safale S-04 is recommended for the production of a large range of ales and specially adapted to cask-conditioned ones and fermentation in cylindo-conical tanks.
INGREDIENTS: Yeast (Saccharomyces pastorianus), emulsifier E491.
FERMENTATION: Ideally at 15-20°C (59-68°F).
PITCHING: 11.5 g per 23 L.
ATTENUATION: 75% (residual sugars 18 g/l).
TOTAL ESTERS: 7 ppm at 20°C in EBC tubes.
TOTAL SUPERIOR ALCOHOLS: 363 ppm at 20°C.
Pitch the yeast directly in the fermentation vessel on the surface of the wort at or above the fermentation temperature. Progressively sprinkle the dry yeast into the wort ensuring the yeast covers all the surface of wort available to avoid clumps. Ideally, the yeast will be added during the first part of the filling of the vessel; in which case hydration can be done at wort temperature higher than fermentation temperature, the fermenter being then filled with wort at lower temperature to bring the entire wort temperature at fermentation temperature.
With prior rehydration
Alternatively, sprinkle the yeast in minimum 10 times its weight of sterile water or wort at 21 to 25 °C (70°F to 77°F). Leave to rest 15 to 30 minutes. Gently stir for 30 minutes, and pitch the resultant cream into the fermentation vessel.
STORAGE: 36 months from production date. During transport: The product can be transported and stored at room temperature for periods of time not exceeding 3 months without affecting its performance. At final destination: Store in cool (< 10°C/50°F), dry conditions.
SHELF LIFE: Refer to best before end date printed on the sachet. Opened sachets must be flushed sealed and stored at 4°C (39°F) and used within 7 days of opening. Do not use soft or damaged sachets.
% dry weight: 94.0 – 96.5
Viable cells at packaging: > 6 x 10^9 /g
Total bacteria*: < 5 / ml
Acetic acid bacteria*: < 1 / ml
Lactobacillus*: < 1 / ml
Pediococcus*: < 1 / ml
Wild yeast non Saccharomyces*: < 1 / ml
Pathogenic micro-organisms: in accordance with regulation
*when dry yeast is pitched at 100 g/hl i.e. > 6 x 10^6 viable cells / ml.