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Old 10-03-2008, 10:43 AM   #1
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Default 2.5 Ltr starter for lager - enough?

I have 2.5 Ltr (1/2 galon) starter on stir plate for lager - 6 galons 1.054 pilsner, I'd like to pitch cold.
MrMalty calculator tells me I should have 1.5 Ltr to 4.1 Ltr, depending on how much vials I pitch. I don't pitch whole vial, I use frozen yeast, I make step-up starter 100 ml -> 500 ml -> 2.5 ltr, I'm not sure how to use the 'growth factor' setting in such case.

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Old 10-03-2008, 12:36 PM   #2
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Frozen yeast???

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Old 10-03-2008, 01:38 PM   #3
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Quote:
Originally Posted by Brew-boy View Post
Frozen yeast???
yes, like this:
Yeast bank - Home Brewing Wiki
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Old 10-03-2008, 01:50 PM   #4
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That ought to be more than enough. I would probably pitch around 1.5 L for that batch.


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Old 10-03-2008, 05:37 PM   #5
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Quote:
Originally Posted by TexLaw View Post
That ought to be more than enough. I would probably pitch around 1.5 L for that batch.
Thx Tex
Do you decant spent starter wort and pitch cold?
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Old 10-03-2008, 06:05 PM   #6
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Yes, I decant, leaving just enough liquid to get my slurry into the wort.

I don't know what you mean by "pitch cold," though. I take my starters out of the fridge (if they went there, and they usually do) when I start brewing.


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Old 10-04-2008, 07:34 AM   #7
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Quote:
Originally Posted by TexLaw View Post
I don't know what you mean by "pitch cold"
I mean, pitching to wort cooled to 48-50F.

Other technique is "pitching warm" as I call it, that is pitching in ~68F, and cooling the wort slowly, as soon as you see fermentation signs. This technique allows to use smaller starters.
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Old 10-04-2008, 08:11 AM   #8
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Well just as a note I am pitching a lager tomorrow as well. I just got done making starter (small 1200ML) and I am going to pitch my Frisco Lager yeast at around 65 then wait till I see signs of ferment and then drop temp to lager temps.
Cheers
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