Mangrove Jack's M54 Californian Lager Yeast

Mangrove Jack's M54 Californian Lager Yeast is a premium dry lager yeast developed to produce authentic lager character while fermenting at standard ale temperatures. This versatile strain allows brewers to create crisp, clean lagers without traditional cold fermentation, making it an excellent choice for California Common and hybrid lager styles. Each 10 g packet treats approximately 6 gallons of wort with reliable, consistent fermentation performance.

M54 delivers a clean malt-forward profile with restrained ester production and a crisp finish that showcases both malt complexity and hop character. Its ability to ferment at warmer temperatures significantly reduces fermentation time while maintaining classic lager drinkability.

This dry lager strain features 77–82% attenuation, high flocculation, and performs best between 64–68°F (18–20°C). Its high flocculation promotes excellent clarity, while dependable attenuation produces dry, balanced beers with refreshing finish and structure.

Mangrove Jack's M54 is recommended for California Common, American Lager, Cream Ale, International Pale Lager, Czech Pale Lager, Doppelbock, Eisbock, and Baltic Porter. Brewers can pitch directly into properly oxygenated wort and enjoy consistent results without lengthy lagering schedules.

Trusted by homebrewers worldwide, Mangrove Jack's M54 offers an efficient way to produce clean lager-style beers while simplifying fermentation for both beginners and experienced brewers.