Description
SafLager W-34/70 11.5g – lager yeast from Weihenstephan
SafLager W-34/70 from Fermentis is a dry lager yeast from Weihenstephan in Germany, used worldwide in the brewing industry. It gives a good balance of floral and fruity aromas and clean, highly drinkable beers. The yeast suits German and Czech pilsners and other lagers.
Technical data
- Yeast: Saccharomyces cerevisiae
- Ideal fermentation temperature: 12–18 °C
- Attenuation: 80–84 %
- Alcohol tolerance: 9–11 %
- Flocculation: high
- Ester production: low
- Dosage: 80–120 g per 100 litres
- Pack size: 11.5 g
How to use W-34/70
Fermentis gives two methods. You can sprinkle the yeast directly onto the wort at fermentation temperature, gradually so it does not clump. Or you can rehydrate it first: sprinkle the yeast into at least ten times its own weight of sterile water or boiled, hopped wort at 15–25 °C, leave for 15–30 minutes, stir gently and pitch.
Studies by Fermentis show that W-34/70 can be fermented like an ale at 20 °C without any noticeable difference in the result. Using W-34/70, see slide 34 onwards in the presentation.
Frequently asked questions about SafLager W-34/70
How many packs do I need for 20–25 litres?
The dosage is 80–120 g per 100 litres. That equals 16–24 g for 20 litres and 20–30 g for 25 litres, so two to three 11.5 g packs. Lager yeast needs almost twice as many cells as ale yeast.
Can I ferment W-34/70 without a fridge?
The ideal range is 12–18 °C. According to studies by Fermentis, W-34/70 can also be fermented at 20 °C with no noticeable difference in the result. Keep the temperature as stable as possible.
Do I have to rehydrate the yeast?
No, Fermentis states that it can be sprinkled directly onto the wort. Rehydrating in water or wort at 15–25 °C is an option.
How should I store the dry yeast?
Below 24 °C for storage up to six months and below 15 °C for longer storage. Seal an opened pack, keep it in the fridge at 4 °C and use it within seven days.
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Betaling
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