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Fermentis Safbrew S-33 Beer Yeast: Home Beer Brewing
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Fermentis Safbrew S-33 Beer Yeast

Model number: BY-S33
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Fermentis Safbrew S-33 beer yeast (11.5 grams) is a general purpose, robust, high alcohol tolerant yeast with neutral flavor profiles, producing superb flavor profiles and is particularly recommended for specialty ales and trappist type beers.

Sedimentation: medium. Final gravity: high.

Fermentation Temperature:

12-25°C (53.6-77°F) ideally 15-20°C (59-68°F)


Dosage Instructions:

50 to 80 g/hl in primary fermentation

2.5 to 5g/hl in bottle conditioning


Rehydration Instructions:

Method 1:

  • Sprinkle the yeast in minimum 10 times its weight of sterile water or wort at 23° c ± 3°C (73°F ± 6°F).
  • Leave to rest 15 to 30 minutes.
  • Gently stir for 30 minutes, and pitch the resultant cream into the fermentation vessel.

Method 2:

  • Pitch the yeast directly in the fermentation vessel providing the temperature of the wort is above 20°C (68°F).
  • Progressively sprinkle the dry yeast into the wort ensuring the yeast covers all the surface of wort available in order to avoid clumps.
  • Leave for 30 minutes, then mix the wort using aeration or by wort addition.


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