Mangrove Jack’s M12 Kveik Yeast – 10g Sachet
If this yeast is on sale at 40% off, it’s likely nearing its expiration date—but don’t worry! It’s still highly viable and a great way to save on your brew.
Yeast Specifications:
- Manufacturer: Mangrove Jack
- Yeast Type:
- Attenuation: 77% - 82%
- Flocculation: Very High
- Temperature: 68°F - 104°F
Rapid, High-Temperature Fermentation with Subtle Citrus Notes
Mangrove Jack’s M12 Kveik Yeast is a top-fermenting strain derived from the traditional Norwegian Voss Kveik culture, renowned for its ability to ferment cleanly at elevated temperatures. This yeast offers exceptionally fast fermentation while imparting a neutral flavor profile accented by subtle citrus fruit notes, making it ideal for a variety of beer styles, including Norwegian Farmhouse Ales, Pale Ales, and IPAs.
With a high attenuation rate of 77–82% and very high flocculation (5/5), M12 ensures a thorough fermentation process, resulting in beers with a dry finish and excellent clarity. Its robust nature allows it to tolerate alcohol levels up to 12% ABV and ferment effectively within a broad temperature range of 68–104°F (20–40°C), with optimal performance between 86–104°F (30–40°C).
Key Characteristics
- Yeast Type: Top-fermenting dry ale yeast
- Beer Styles: Norwegian Farmhouse Ales, Pale Ales, IPAs
- Fermentation Temperature Range: 68–104°F (20–40°C); optimal: 86–104°F (30–40°C)
- Attenuation: High (77–82%)
- Flocculation: Very High (5/5)
- Alcohol Tolerance: Up to 12% ABV
- Flavor Profile: Neutral with subtle citrus fruit notes
Brewing Applications
M12 Kveik Yeast is particularly suited for brewing in warmer climates or when temperature control is limited. Its ability to ferment rapidly at high temperatures without producing off-flavors makes it a versatile choice for various ale styles. The yeast's subtle citrus character enhances hop-forward beers, while its clean profile allows malt and hop flavors to shine in simpler recipes.
Usage & Pitching Recommendations
- Direct Pitch: Sprinkle the contents of the sachet directly into the cooled wort (up to 6 gallons or 23 liters) at the desired fermentation temperature.
- Rehydration (Optional): Rehydrate in 10 times its weight of sterile water at 77–86°F (25–30°C) for 15–30 minutes before pitching.
Storage & Shelf Life
- Storage: Store in a cool, dry place. Refrigeration is recommended for extended shelf life.
- Shelf Life: Up to 24 months from the production date when unopened and properly stored.