The strong & robust lager yeast, ideal for neutral beers
This famous brewer’s yeast strain from Weihenstephan in Germany is used world-wide within the brewing industry. SafLager™ W-34/70 allows the brewing of beers with a good balance of floral and fruity aromas and gives clean flavors and high drinkable beers.
Ingredients: Yeast (Saccharomyces pastorianus), emulsifier E491
SAFLAGER™ W-34/70 overview
SAFLAGER™ W-34/70 technical features
Dosage / Temperature
80 to 120 g/hl at ideally 12°C – 18°C (53.6-64.4°F).
Lesaffre know-how and continuous yeast production process improvement generates an exceptional quality of dry yeasts able to resist to a very wide range of uses, incl. cold or no rehydration conditions, without affecting their viability, kinetic and/or analytical profile. Brewers can choose usage conditions that fit the best their needs, i.e.:
① Direct pitching:
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.
② With prior rehydration:
Alternatively, sprinkle the yeast in minimum 10 times its weight of sterile water or boiled and hopped wort at 15 to 25°C (59°F to 77°F). Leave to rest 15 to 30 minutes, gently stir and pitch the resultant cream into the fermentation vessel.
- Viable yeast > 6.0 *109 cfu/g
- Purity : > 99.9 %
- Lactic acid bacteria: < 1 cfu /6.0*106 yeast cell
- Acetic acid bacteria: < 1 cfu /6.0*106 yeast cell
- Pediococcus: < 1 cfu /6.0*106 yeast cell
- Total Bacteria: < 1 cfu /106 yeast cell
- “Wild” Yeast*: < 1 cfu /6*106 yeast cell
- Pathogenic micro-organisms: in accordance with regulation
*EBC Analytica 4.2.6 – ASBC Microbiological Control-5D
For less than 6 months: the product must be stored below 24°C. For more than 6 months: the product must be stored below 15°C. For short periods not exceeding 7 days there is an exception to these rules.
36 months from production date. Refer to best before end date printed on the sachet.Opened sachets must be sealed and stored at 4°C (39°F) and used within 7 days of opening.Do not use soft or damaged sachets.
Each Fermentis yeast is developed under a specific production scheme and benefits from the know-how of the Lesaffre group, world leader in yeast manufacturing. This guarantees the highest microbiological purity and maximum fermentation activity.
Fermentis dry brewing yeasts are well known for their ability to produce a large variety of beer styles. In order to compare our strains, we ran fermentation trials in laboratory conditions with a standard wort for all the strains and standard temperature conditions (SafLager: 12°C for 48h then 14°C / SafAle: 20°C). We focused on the following parameters: Alcohol production, residual sugars, flocculation and fermentation kinetic. Given the impact of yeast of the quality of the final beer it is recommended to respect the recommended fermentation instructions. We strongly advise users to make fermentation trials before any commercial usage of our products.