Author Topic: Mangrove Jack M76 vs M84  (Read 1268 times)

Offline Iliff Ave Brewhouse

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Mangrove Jack M76 vs M84
« on: October 16, 2018, 02:20:01 PM »
Has anyone used both of these strains in similar worts? What were your impressions of any differences in attenuation? I recently used M84 in a couple of beers and was disappointed with its level of attenuation with both beers finishing at 1.015.

Both beers were mashed at 150F for 60 minutes. Apparent attenuation was 70% and 73%. I would prefer my lagers finish closer to 1.010.
« Last Edit: October 16, 2018, 05:07:20 PM by goschman »
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Offline tommymorris

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Re: Mangrove Jack M76 vs M84
« Reply #1 on: October 16, 2018, 05:20:09 PM »
I have used both. I got 78% attenuation with M76 twice in a Helles. The beers were good. The one with more notes had just this: “Very nice beer. Clean, malty, smooth. Could go for a bit more crispness.”

I have used M84 once in a Amber lager. Attenuation was 70%. I chocked it up to lots of caramel malt (10%). The beer was awesome though. It was a very malty beer.

Offline ynotbrusum

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Re: Mangrove Jack M76 vs M84
« Reply #2 on: October 16, 2018, 06:10:27 PM »
They seemed to remain a bit powdery well after the final days of fermentation, not clearing as quickly as I would hope, but taste-wise, I preferred the Bavarian (M84) to the Czech (M76).  YMMV and a different fermentation profile may change things here, too.
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Offline Iliff Ave Brewhouse

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Re: Mangrove Jack M76 vs M84
« Reply #3 on: October 16, 2018, 06:44:18 PM »
They seemed to remain a bit powdery well after the final days of fermentation, not clearing as quickly as I would hope, but taste-wise, I preferred the Bavarian (M84) to the Czech (M76).  YMMV and a different fermentation profile may change things here, too.

M84 is actually the Bohemian which is what I have used. I agree in that this has not cleared very well for me up to this point.
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Offline Iliff Ave Brewhouse

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Re: Mangrove Jack M76 vs M84
« Reply #4 on: October 16, 2018, 08:03:58 PM »
I have used both. I got 78% attenuation with M76 twice in a Helles. The beers were good. The one with more notes had just this: “Very nice beer. Clean, malty, smooth. Could go for a bit more crispness.”

I have used M84 once in a Amber lager. Attenuation was 70%. I chocked it up to lots of caramel malt (10%). The beer was awesome though. It was a very malty beer.

Thanks for your input. Both of the beers I did with M84 are malty amber styles so it works but I would personally want a light lager with more attenuation. Sounds like M76 would do the trick.
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Offline ynotbrusum

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Re: Mangrove Jack M76 vs M84
« Reply #5 on: October 24, 2018, 10:56:25 AM »
Got the numbers crossed, but I liked the Bavarian over the Czech, for what it’s worth.
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Offline BrewBama

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Re: Mangrove Jack M76 vs M84
« Reply #6 on: October 24, 2018, 01:01:56 PM »
Did you notice any tartness or low pH with the 1st generation pitch of the MJ Lager strains? 

Did you re-pitch or use another 1st gen pitch in your second beer?  If 2nd gen, did you notice any tartness or low pH in the finished second beer?


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Offline Iliff Ave Brewhouse

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Re: Mangrove Jack M76 vs M84
« Reply #7 on: October 24, 2018, 01:14:15 PM »
Did you notice any tartness or low pH with the 1st generation pitch of the MJ Lager strains? 

Did you re-pitch or use another 1st gen pitch in your second beer?  If 2nd gen, did you notice any tartness or low pH in the finished second beer?

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I don't have a pH meter but the 1st generation did have a noticeable tartness to me. The 2nd generation is in a beer that is just carbing up. It's hard to perceive any tartness possibly because of some adjuncts that I used but I'll see in the coming days.

FWIW, I got 70% and 73% apparent attenuation on similar grists (Vienna, Marzen) that were mashed at 150F for 60 min. Not a big fan after trying this strain for the first time. Going to do a run with M76 next and probably go back to S-189 if it's not to my liking.
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