Author Topic: Munich Helles fermentation temp?  (Read 3214 times)

Offline bluesman

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Munich Helles fermentation temp?
« on: August 31, 2010, 03:47:26 PM »
I made a Munich Helles over the weekend and pitched at 46ish.  I bumped up the keezer to 49 today.  I will bump it one more notch tomorrow to settle at 50.  I have a Johnson contoller that has an operating range of +/- 2 degrees.  I'm using a slurry of WLP830.

What's the consensus on pitch/ferm temps for this lager?
Ron Price

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Re: Munich Helles fermentation temp?
« Reply #1 on: August 31, 2010, 03:59:44 PM »
I like to ferment cold, the warmest I go with my lager yeasts is 48 with a 1 degree differential. Thats how I roll.

Offline majorvices

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Re: Munich Helles fermentation temp?
« Reply #2 on: August 31, 2010, 04:17:11 PM »
48 ... but what you are doing Ron is fine.
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Offline bluesman

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Re: Munich Helles fermentation temp?
« Reply #3 on: August 31, 2010, 06:05:05 PM »
I was thinking of holding at 46 but changed my mind last minute.  This is a third generation yeast and I want to see how long I can stretch it out.  Maybe 10 or more generations...we'll see.

I'm thinking about a Dopplebock next.  :-\
Ron Price

Offline joeysmokedporter

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Re: Munich Helles fermentation temp?
« Reply #4 on: August 31, 2010, 06:07:23 PM »
agree with the others.  I like to pitch cool --mid high 40s-- and gradually bring up temp to low 50s, which sounds consistent with your approach.  Ester formation is driven mostly by growth in first two days, during which your temps should have been sufficiently cool to suppress.
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Offline tschmidlin

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Re: Munich Helles fermentation temp?
« Reply #5 on: August 31, 2010, 07:39:18 PM »
I don't think you'll want to go to 10 generations:
http://www.asbcnet.org/journal/abstracts/2003/0205-01a.htm

It's been a while since I read the whole article, but I seem to remember a rule of thumb of 7 generations for lager yeasts.  If I have time I'll go through it again.
Tom Schmidlin

Offline bluesman

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Re: Munich Helles fermentation temp?
« Reply #6 on: September 01, 2010, 04:15:04 AM »
Good info Tom.  Thanks.

I'd like to read that study. 

I am curious to find how many I can get without any noticeable degredation of beer quality.
Ron Price

Offline blatz

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Re: Munich Helles fermentation temp?
« Reply #7 on: September 01, 2010, 06:35:12 AM »
47-48df is what I've been doing for all my light lagers, ramping up at the end to finsh out.

Good info Tom.  Thanks.

I'd like to read that study.  

I am curious to find how many I can get without any noticeable degredation of beer quality.

don't forget you can branch out each generation quite a bit and keep that yeast going for a long time - I usually save the slurry I don't repitch from Gen 1 and both Gen 2s (assuming I split Gen 1 in half) which gives me a lot to work with.   in fact, I never even use all of it - wind up dumping some.
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Offline bluesman

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Re: Munich Helles fermentation temp?
« Reply #8 on: September 01, 2010, 06:37:20 AM »
47-48df is what I've been doing for all my light lagers, ramping up at the end to finsh out.

Good info Tom.  Thanks.

I'd like to read that study.  

I am curious to find how many I can get without any noticeable degredation of beer quality.

don't forget you can branch out each generation quite a bit and keep that yeast going for a long time - I usually save the slurry I don't repitch from Gen 1 and both Gen 2s (assuming I split Gen 1 in half) which gives me a lot to work with.   in fact, I never even use all of it - wind up dumping some.

Another good idea Paul!
Ron Price

Offline Thirsty_Monk

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Re: Munich Helles fermentation temp?
« Reply #9 on: September 01, 2010, 02:58:55 PM »
Currently i am pitching at 46F and keep it there for a few days.
I have to say that lag time is very long and I would consider this as a negative issue.

Pitching at 46F and let it raise to 48F should be just fine.
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Offline bluesman

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Re: Munich Helles fermentation temp?
« Reply #10 on: September 01, 2010, 03:16:48 PM »
Currently i am pitching at 46F and keep it there for a few days.
I have to say that lag time is very long and I would consider this as a negative issue.

Pitching at 46F and let it raise to 48F should be just fine.

I am currently experiencing a 2+ day lag which is typical but I expect it to be on it's way any time now.
Ron Price

Offline Thirsty_Monk

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Re: Munich Helles fermentation temp?
« Reply #11 on: September 02, 2010, 02:48:38 PM »
I pitched Monday morning and only today (3 days later) I could see strong sign of fermentation.
It is nerve racking.

I might have to start fermenting Ales  ;)
Na Zdravie

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Smoked Bock
MaiBock
American Brown Ale
Marzen
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Offline bluesman

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Re: Munich Helles fermentation temp?
« Reply #12 on: September 02, 2010, 03:10:34 PM »
Finally last night I had pretty good fermentation also three days later.  Lagers require patience.  Something that doesn't come naturally for me.
Ron Price

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Re: Munich Helles fermentation temp?
« Reply #13 on: September 03, 2010, 08:48:57 AM »
I might have to start fermenting Ales  ;)

Has hell frozen over?   :o
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Offline bluesman

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Re: Munich Helles fermentation temp?
« Reply #14 on: September 03, 2010, 10:53:11 AM »
I might have to start fermenting Ales  ;)

Has hell frozen over?   :o

I think it may be on it's way.  :D
Ron Price