Mangrove Jack's M54 California Lager Yeast
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Mangrove Jack’s M54 California Lager Yeast is a unique hybrid strain that allows brewers to produce clean, lager-like beers without the need for cold fermentation. It’s ideal for crafting California Common (Steam Beer) and other pseudo-lagers with ale fermentation temperatures.
This strain is highly prized for its crisp profile, restrained esters, and smooth finish, offering the cleanliness of a lager with the speed and convenience of an ale. M54 is perfect for brewers who lack temperature control but still want that classic lager character.
M54 stays in suspension well throughout fermentation and flocculates moderately, leaving your beer clean and bright with minimal conditioning time. It’s the ultimate yeast for warm-fermented lagers and refreshing hybrid styles.
Technical Details:
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Flocculation: Medium. Ferments thoroughly while yielding a relatively clear beer after conditioning.
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Attenuation: Medium to high, producing a balanced, clean finish without excessive dryness.
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Alcohol Tolerance: Up to 8.5% ABV.
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Fermentation Temperature: Optimal range is 18–20°C (64–68°F).
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Usage: Can be sprinkled directly into cooled wort or rehydrated prior to pitching for best results.
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Ideal Beer Styles: California Common, Cream Ale, Kölsch-style ales, warm-fermented lagers, and pseudo-pilsners.
Mangrove Jack's M54 California Lager Yeast FAQ
Can I use M54 for traditional lagers?
M54 is best for warm-fermented lager styles. While it produces lager-like results, it isn’t a true cold-fermenting lager yeast. For authentic bottom-fermented lagers, use a dedicated lager strain and ferment at 50°F or lower.
What beer styles work best with M54?
M54 shines in hybrid styles like California Common (Steam Beer), Cream Ale, and warm-fermented Kölsch or pilsner-inspired beers. It’s also a good choice for clean, malt-forward pale beers when cold fermentation isn’t an option.
Does M54 produce sulfur?
M54 is relatively low in sulfur production compared to traditional lager yeasts, especially when fermented at its recommended range. Any minor sulfur aroma typically dissipates during conditioning.
Can I cold crash M54 beers?
Yes! While not necessary, cold crashing helps improve clarity and drop remaining yeast from suspension, especially after fermentation is complete.
