M12 Kveik Yeast
Dry Kveik yeast from Mangrove Jack's.
LabMangrove Jack's· Kveik · Dry · M12
Specs
Attenuation
77–82%
The share of sugars the yeast ferments out. Higher attenuation means a drier, stronger beer.
Optimal temp
20–40°C
68–104°F
The range where this strain ferments cleanly, without throwing off-flavors. Most brewers pitch near the low end.
Flocculation
Very high
How readily the yeast clumps together and drops clear once fermentation winds down.
Genetic traits
Phenolics
POF−
Ferments clean
Phenolically clean (POF-negative). No clove or spice, so malt, esters, and hops come through unmasked. The norm for American and British ales and most lagers.
Diastatic
STA-1−
Not diastatic
Does not carry the STA1 (diastaticus) gene. It attenuates normally, with no diastaticus over-attenuation or gushing risk.
Same strain, other labs
Common questions
- What is the M12 Kveik Yeast equivalent?
- Voss Kveik, A43 Loki, OYL-061 Voss Kveik, and WLP520 Sigmund Kveik Ale Yeast — the same strain from other labs, the Voss strain.
- What is M12 Kveik Yeast's attenuation?
- 77–82% apparent attenuation.
- What temperature should I ferment M12 Kveik Yeast at?
- 20–40°C is the recommended range.
Brew with M12 Kveik Yeast
Build a recipe