Mangrove Jack’s M84 Bohemian Lager Yeast – 10g Sachet

Traditional Czech Lager Yeast for Crisp, Clean Fermentations

Mangrove Jack’s M84 Bohemian Lager Yeast is a bottom-fermenting strain renowned for producing soft, delicate, and well-balanced lagers with a dry and clean palate. This yeast is ideal for crafting authentic European lager and pilsner styles, delivering a crisp finish and subtle malt character that defines traditional Czech brewing.

With high attenuation and high flocculation, M84 ensures a thorough fermentation process, resulting in beers with excellent clarity and a refined flavor profile. Its performance at lower fermentation temperatures minimizes the production of esters and diacetyl, allowing the malt and hop characteristics to shine through.

Key Characteristics

• Yeast Type: Bottom-fermenting dry lager yeast
• Beer Styles: German/Bohemian Pilsners, Baltic Porters, American-style Lagers
• Fermentation Temperature Range: 50–59°F (10–15°C)
• Attenuation: High (72–76%)
• Flocculation: High
• Alcohol Tolerance: Up to 8% ABV
• Flavor Profile: Clean and crisp with subtle malt sweetness and minimal ester production

Brewing Applications

M84 is perfect for brewers aiming to produce classic lager styles where a clean fermentation profile is essential. It excels in:

• German and Bohemian Pilsners
• Baltic Porters
• American-style Lagers

Its ability to ferment at lower temperatures while maintaining high attenuation makes it a versatile choice for various lager recipes.

Usage & Pitching Recommendations

• Direct Pitch: Sprinkle the contents of the sachet directly into up to 6 gallons (23 L) of wort at 50–59°F (10–15°C).
• 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.