Mangrove Jack's M41 Belgian Ale

  • Item #Z45
  • Price: $3.99
  • Part #
- +

In stock, will ship on Monday, January 30

Spicy and phenolic, this yeast emulates the intensity and complexity of some of the best monastic breweries in Belgium. High attenuation and alcohol tolerance allow you to brew a huge range of Belgian beers.

Suitable for Belgian Strong Golden and Belgian Strong Dark Ales.

Attenuation: Very High

Flocculation: Medium

Usage Directions: Sprinkle directly on up to 23 L (6 US Gal) of wort. For best results, ferment at 18-28 degrees C (64-82 degrees F).

Storage Recommentions: Store in the fridge

10g Sachet


Average rating 9 out of 10 ( based on 2 reviews )


Review by Thomas Williams on 10/20/2020

I’m hooked on this yeast. I tried this yeast amount others that I ordered and quickly ordered more even though I still have many other unused yeast types. My goal was very high attenuation with very limited residual sugar in a high gravity ale. My high temperature brewing environment produced batches fermented down to dry wine levels but the esters of banana and fruit gave it a sweet impression without residual sugar and no dry taste or body.


Review by Tim on 6/19/2017

According to reports, this is the same yeast formerly sold as M27. It is actually a Saison yeast, not what most brewers expect as a "Belgian Ale" yeast. M27 is (was) notorious for extreme attenuation, typically getting down below 1.010 even in high-gravity beers and sometimes going all the way to 1.000. Definitely peppery and spicy flavor profile - not fruity. Makes a decent Leffe clone if you mash high (158F). If you mash at 154 or lower, and don't have much crystal malt in the bill, this yeast will give you a very dry beer with lots of yeast character and a hot alcohol component - plan to age it for a while before drinking.

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