Mangrove Jack's M42 Strong Ale Yeast

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Mangrove Jack's M42 New World Strong Ale Yeast is a robust dry yeast designed for brewing high-gravity ales with clean, well-attenuated results. It performs reliably across a wide range of strong ale styles, producing a smooth finish with minimal off-flavours even at elevated alcohol levels. The 10g sachet is well-suited to standard 5-gallon homebrew batches and offers good value for the quality delivered.
Key Features & Specs
| Yeast Type | Dry ale yeast, Saccharomyces cerevisiae |
|---|---|
| Attenuation | High attenuation of approximately 73-80%, producing a dry, clean finish |
| Alcohol Tolerance | Up to 14% ABV, making it well-suited for strong and high-gravity beers |
| Fermentation Temp | Optimal range of 18-28°C (64-82°F) with reliable performance across this range |
| Packet Size | 10g sachet, suitable for up to 23 litres (5 gallons) |
| Beer Styles | American Strong Ale, Imperial IPA, Barleywine, Double/Imperial Stout, and other high-gravity styles |
| Flocculation | Medium flocculation, resulting in reasonably clear beer with adequate conditioning time |
Best for: Homebrewers looking to craft strong, high-gravity ales with a clean and well-attenuated fermentation profile, particularly those brewing styles like Imperial IPAs, Barleywines, or American Strong Ales.