Delaney

Recipes 

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

NordeastBrewer77

Recipes 

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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Primary: Honey Weizen (a ,Midwest kit), Columbus IPA
Secondary: No. 3 Burton, RIS
Bottled: Simcoe IPA, Northern English Brown
Kegged: German Alt, Octane IPA

Give a man beer and his thirst is quenched. Teach a man to brew and it will never be again.

pabloj13

Recipes 

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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6.5 gallon bucket Empty
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Delaney

Recipes 

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...

pabloj13

Recipes 

You're doing that in one step, whereas the other one was in two steps. Big difference.

__________________
Future Brews Bell's IPA
6.5 gallon glass Two Hearted clone
6.5 gallon bucket Empty
6 gallon BB Empty
5 gallon glass Empty
Bottled Noberon wheat 05/05/2012, Ommegawd Hellepin 04/15/12, Apfelwein 04/01/12, Skeeter Pee 03/15/12, Two-Hearted clone 02/16/2012, Ed Wort's Apfelwein 02/13/2012, Smooth Oatmeal Stout 1/25/12
RIP Falconer's Flight IPA 12/17/11

My Grilling and Beer Blog

NordeastBrewer77

Recipes 

change the production date, man. i doubt (and hope) your pack of yeast isn't 13 months old.

__________________
The Polk Street Brewery
Brew Blog
Primary: Honey Weizen (a ,Midwest kit), Columbus IPA
Secondary: No. 3 Burton, RIS
Bottled: Simcoe IPA, Northern English Brown
Kegged: German Alt, Octane IPA

Give a man beer and his thirst is quenched. Teach a man to brew and it will never be again.

Delaney

Recipes 

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

NordeastBrewer77

Recipes 

according to MrMalty, week old yeast is ~91% viable, FWIW.

__________________
The Polk Street Brewery
Brew Blog
Primary: Honey Weizen (a ,Midwest kit), Columbus IPA
Secondary: No. 3 Burton, RIS
Bottled: Simcoe IPA, Northern English Brown
Kegged: German Alt, Octane IPA

Give a man beer and his thirst is quenched. Teach a man to brew and it will never be again.