Beer Yeast – Saflager S-23

SKU BEV-40712


41 in stock

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Beer Yeast – Saflager S-23  11g

Special high quality yeast variety specifically for European style low ferment temperature lagers. Ideal fermentation temp 12-18C


Yeast (Saccharomyces cerevisiae), rehydrating agent
This bottom fermenting yeast is originating from the VLB (Berlin) in Germany and is known under the code RH. The strain is used by Western European commercial breweries and has been reported to produce lagers with some fruity and estery notes. Sedimentation: high. Final gravity: medium.
80 to 120 g/hl for pitching at 12C – 15C. Increase dosage for pitching below 12C, up to 200 to 300 g/hl at 9C.
Pitching instructions:
Re-hydrate the dry yeast into yeast cream in a stirred vessel prior to pitching. Sprinkle the dry yeast in 10 times its own weight of sterile water or wort at 23C ± 3C. Once the expected weight of dry yeast is reconstituted into cream by this method (this takes about 15 to 30 minutes), maintain a gentle stirring for another 30 minutes. Then pitch the resultant cream into the fermentation vessel.
Alternatively, pitch dry yeast directly in the fermentation vessel providing the temperature of the wort is above 20C. 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 and then mix the wort e.g. using aeration.
Fermentation temperature:
Recommended fermentation temperature: 9C – 15C, ideally 12C.
Store in cool (< 10C), dry conditions.
Opened sachets must be sealed and stored at 4C and used within 7 days of opening.
Do not use soft or damaged sachets.
Shelf life:
Refer to best before end date on sachets. 24 months from production date under recommended storage conditions.
Typical analysis:
% dry weight:
94.0 – 96.5
Viable cells at packaging:
> 6 x 109 / gramme
Total bacteria*:
< 5 / ml
Acetic acid bacteria*:
< 1 / ml
< 1 / ml
< 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 106 viable cells / ml
Important notice:
Please note that any change to a fermentation process may alter the final product quality. We therefore advise that fermentation trials are carried out prior to using our yeast commercially.


Why use Fermentis Yeast

With advances in technology, the quality and range of brewing materials available to the home brewer has improved dramatically. To obtain the best results, it is necessary to use high quality yeast.

Fermentis has developed a range of high performing dry yeast to provide a reliable yeast source to the home brewer as used by the professional brewers of the world. Fermentis dry yeast now offer a true alternative to liquid yeast cultures as the need for expensive shipping and packaging has been replaced by a nitrogen flushed sachet with a two year shelf life.

The dry yeast is easy to rehydrate as the wort is being prepared by the brewer. High yeast activity and correct yeast pitching levels will ensure that the fermentation starts rapidly and goes to completion in the desired time thereby reducing the risk of bacterial or wild yeast infection damaging the flavour or appearance of the beer. As the yeast is stable for up to two years, the brewer can always have a supply of yeast available to use as and when required.