Author Topic: Mangrove Jacks M20  (Read 3094 times)

helmet

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Mangrove Jacks M20
« on: September 23, 2016, 08:05:09 PM »
Have a pack of this from brewcon.
Has anyone used it? Going to give it a whirl in a Weizenbock soon.
What fermentation temp do you reckon I should be aiming for?

darren996

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Re: Mangrove Jacks M20
« Reply #1 on: September 23, 2016, 09:09:52 PM »
Yep used it a few times, ferment at 19  or if you like banana go for 21. I do a single stage mash at 66 with this finishes in about 5 days, I prefer it to wb06

helmet

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Re: Mangrove Jacks M20
« Reply #2 on: September 23, 2016, 09:16:19 PM »
Nice one Darren, thanks for that!

Pheeel

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Re: Mangrove Jacks M20
« Reply #3 on: September 26, 2016, 10:09:49 AM »
I also got it at brewcon. I made an attempt at a German wheat. I'm not a huge fan of the banana so didn't ferment too high. It was a nice pint. Interestingly after a couple of weeks in my keezer the leg went completely clear. Still tasted good!
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Will_D

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Re: Mangrove Jacks M20
« Reply #4 on: September 26, 2016, 11:54:43 PM »
Nowt like a clear leg as we say in Yorkshire!!
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Partridge9

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Re: Mangrove Jacks M20
« Reply #5 on: May 25, 2018, 08:46:47 PM »
Brewing with this tomorrow...

From what Im reading it should be fermentated at 19C to avoid a banana bomb, also low floc levels,  attenuation 75-78, rehydration recommended with filtered water at 25-30C

Im just going to use one pack for 22 litres, estimated gravity is 1046... ish ..

I'll do all that and report back the results.


mick02

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Re: Mangrove Jacks M20
« Reply #6 on: May 27, 2018, 09:51:27 AM »
Just wondering if anyone that has used this yeast saw a lag time that seems usual with other Mangrove Jack yeast.
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CH

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Re: Mangrove Jacks M20
« Reply #7 on: May 27, 2018, 10:25:54 AM »
MJ need 2 packs

johnrm

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Re: Mangrove Jacks M20
« Reply #8 on: May 27, 2018, 01:43:04 PM »
Why not stress the yeast with a low pitch to get the Banana and Clove?

shweeney

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Re: Mangrove Jacks M20
« Reply #9 on: May 29, 2018, 12:48:38 PM »
Just wondering if anyone that has used this yeast saw a lag time that seems usual with other Mangrove Jack yeast.

I brewed with M20 last week, it had kicked off within 6 hours (I have noticed the lag with some of their other yeasts).

Partridge9

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Re: Mangrove Jacks M20
« Reply #10 on: June 02, 2018, 02:08:35 PM »
Just wondering if anyone that has used this yeast saw a lag time that seems usual with other Mangrove Jack yeast.

Didnt notice a lag time... it didnt provide the usual massive yeast head that other Wheat yeast tend to.
After 4 days I was down to 1018 .. which seems ok

I did 'rehydrate' with 200ml of cooled boiled filtered water at 29C for 30 mins.
My understanding is that if you dont re-hydrate you loose 10-20% of your yeast cells- regardless of the instructions on the packet

I'll measure today... I am expecting 1014-1015 - everyone says it finishes high.. which suggests an attenuation of 65-70 and not the stated 70-75

Partridge9

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Re: Mangrove Jacks M20
« Reply #11 on: June 04, 2018, 11:26:33 AM »
Unfortunately it measured at 1020 !!

I am going to add more yeast ... I have one pack and two batches ... so i'll use my last packet and hydrate it with 100ml

I'll then split it between both batches - so they get in total 1.5 packs each.

I'll monitor gravity and get back... if it drops a few points, then Yeast cell count / viability was the issue

No harm done yet... I think.. - sure I'll hammer away and post back the results

mac2k

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Re: Mangrove Jacks M20
« Reply #12 on: June 05, 2018, 10:50:33 AM »
I like to give the wort a gentle swirl or 2 to rouse the yeast, if this happens, Have used this method once or twice to help drop those last few points. 1.020 does seem a little high...

Partridge9

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Re: Mangrove Jacks M20
« Reply #13 on: June 05, 2018, 06:23:34 PM »
So did a little swirl as well... lets see if we can knock it down to 1015... not very optimistic..

Snuff

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Re: Mangrove Jacks M20
« Reply #14 on: June 23, 2018, 07:31:11 PM »
Just had a fine result with M20, start out at 1050, three weeks in primary and 1010 with an excellent banana / clove aroma and fine taste. All bottled today and looking forward to opening in a couple of weeks.
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