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Old 02-06-2012, 04:59 PM   #1
Delaney
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Hi,

I'll be brewing a 10 gallon beer shortly using a Wyeast lager style yeast. This means I need 12 million yeast cells/ml.

Using one package of Wyeast Activator, which contains 100 billion yeast cells, I'm trying to determind the volume of starter that I must make. This is what I came up with on their website:




So this means I would need to first inoculate 0.5 gallons of wort at 1.040, and then add that to 1 gallon of wort at 1.040 26 hours later?

Isn't that going to mess up my recipe? 1.5 gallons is a significant volume of liquid. Do I therefore need to include the amount of DME used in the starter to my grain bill, as well as adding 1.5 gallons of top up water to get my specs right?

Thanks for the help

 
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Old 02-06-2012, 05:12 PM   #2
NordeastBrewer77
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try this site out for putting together your starter. you'll need 1 gm DME per 10 ml of wort to get ~1.04
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Old 02-06-2012, 06:15 PM   #3
pabloj13
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If you cold crash the starter overnight and decant off the spent wort, you won't need to account for the volume in your calculations.
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Old 02-06-2012, 06:18 PM   #4
Delaney
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This is what I get via MrMalty


Am I doing something wrong here? Isn't that kind of crazy, 3 packs of yeast for the starter when the company recommends 4 activators without a starter...

 
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Old 02-06-2012, 06:22 PM   #5
pabloj13
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You're doing that in one step, whereas the other one was in two steps. Big difference.
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Kegged Two Hearted, Dragonmead Final Absolution
Bottled Robust porter, Founder's Breakfast Stout, Ommegawd Hellepin, Ed Wort's Apfelwein
RIP Snake Dog IPA, Biermuncher's OktoberFAST, Falconer's Flight IPA, Two-Hearted clone (Culturing Bell's Yeast), Noberon wheat, Skeeter Pee using dry yeast, Smooth Oatmeal Stout


Simple and easy wort aeration - Harvest yeast from your blowoff - Homebrew Spicy Mustard

 
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Old 02-06-2012, 09:49 PM   #6
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Quote:
Originally Posted by Delaney View Post
This is what I get via MrMalty


Am I doing something wrong here? Isn't that kind of crazy, 3 packs of yeast for the starter when the company recommends 4 activators without a starter...
change the production date, man. i doubt (and hope) your pack of yeast isn't 13 months old.
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Quote:
Originally Posted by yeoitsmatt View Post
can i drink this? I mean. Im gunna. But is it fine?
Quote:
Originally Posted by yeoitsmatt View Post
it's not a barley wine. it's an ale.
Quote:
Originally Posted by bottlebomber View Post
Have you seen the price of ketchup lately? And I'm not talking Heinz.

 
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Old 02-06-2012, 11:11 PM   #7
Delaney
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Jul 2011
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For some reason that calculator's calendar doesn't go up to 2012...it think's that it's 2011.

I had the same results when I input 100% viability. I think I will do a two stage propagation

 
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Old 02-07-2012, 02:23 AM   #8
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Quote:
Originally Posted by Delaney View Post
For some reason that calculator's calendar doesn't go up to 2012...it think's that it's 2011.

I had the same results when I input 100% viability. I think I will do a two stage propagation
according to MrMalty, week old yeast is ~91% viable, FWIW.
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The Polk Street Brewery

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Quote:
Originally Posted by yeoitsmatt View Post
can i drink this? I mean. Im gunna. But is it fine?
Quote:
Originally Posted by yeoitsmatt View Post
it's not a barley wine. it's an ale.
Quote:
Originally Posted by bottlebomber View Post
Have you seen the price of ketchup lately? And I'm not talking Heinz.

 
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