Mangrove Jack’s M44 US West Coast is a clean-fermenting ale yeast that allows hop character to remain prominent. It suits American pale ales, IPAs, double IPAs and hop-forward imperial stouts.
Fermentation guidance
- Pack size: 10g
- Suitable for up to 23L
- Recommended range: 18–23°C
- Attenuation: high
- Flocculation: high
Sprinkle directly onto the wort and store the unopened sachet in the fridge. High-gravity recipes may need additional yeast or nutrient support according to the recipe.
Compare Mangrove Jack’s ale yeast strains
- M15 Empire Ale for full-bodied, malt-led Scottish heavy, amber ale and sweet stout styles with rich dark-fruit character at 18–22°C.
- M36 Liverty Bell Ale for hoppy English and American pale ales, ESB and golden ales with light fruity esters at 18–23°C.
- M42 New World Strong Ale for a relatively neutral, very highly flocculant option that keeps malt and hops prominent at 16–22°C.
These strains are not automatically interchangeable. Choose for the beer style and flavour profile wanted, and follow the current sachet directions.

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