Norwegian M12 KVEIK YEAST Mangrove Jacks 10.5g Single Pack for Farmhouse Ale and Hot Weather Fermentation BZZZ3709


High temp tolerant farmhouse ale yeast produces a clean finish with citrusy notes.  A top fermenting yeast, M12 Kveik offers fast fermentation at very high temperatures while retaining a neutral flavor character with subtle citrus fruit notes. Kveik ferments with an exceptionally clean taste profile, with just a delicate hint of fruity esters.  Kveik is an ancient yeast that’s usually formed of several strains, but M12 is selected from the single most important strain. M12 Kveik Yeast is suitable for a range of styles from Norwegian Farmhouse Ales to Pale Ales and IPAs. Mangrove Jack’s yeasts provide consistent, top quality results with each batch.  For up to 6 gallons. 

10 in stock

SKU: 9421025518058 Category:


Fermentation Observations:  A fast fermenting yeast that can ferment cleanly at very high temperatures. This is a slow and low flocculating strain, although it eventually will settle out and leave moderately clear beer.  Quick to condition, beers fermented with this strain can be ready to drink in as little as 10 days.  Recommended fermentation temperature is between 59–75°F (18–24°C); however this strain can be fermented at up to 30°C (86°F) if excessive ester production is desired.

STRAIN CLASSIFICATION: Saccharomyces cerevisiae

  • Mangrove Jack’s M12 Kveik Norwegian Farmhouse Ale yeast
  • Consistent, top quality results with each brew.  Superior shelf stability and ease of use
  • Alcohol Tolerance: 12%  Flocculation : Very High 5/5  Attenuation: High 77-82%
  • Species :  Saccharomyces cerevisiae.  Temperature Range: 64-72 degrees F (18-22 degrees C)
  • Suitable for Farmhouse Ales, IPA, Pale Ales and more.
  • 10g treats 23L / 5-8 Gallons

Usage Directions: Sprinkle contents directly on top of up to 23 L (6 US Gal) of wort. Allow to float for 20 mins to rehydrate.  Stir well, and stir every day for three days.  Ferment at 64-77 degrees F (18-25 degrees C) for best results.

DRY YEAST:  When using dry yeasts there is no need to propagate or make starters.  Dry yeasts offer a cost effective and convenient alternative to liquid yeast products and have the advantage of extended shelf life with consistent high performance.  Store the packets at room temperature out of direct sunlight.  Don’t refrigerate or freeze.


Additional information

Weight .01 oz
Dimensions 2 × 2 × .01 in


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