Producing Yeast for 10 gallons with 1 smack pack???

[Lilburgh]

I'm planning on brewing a 10 gallon batch on Friday. I'm hoping to save a couple bucks by only buying 1 smackpack and making a starter to produce enough yeast cells to ferment all 10 gallons. Should I just make 1 starter, or should double it up and make a starter for the starter as well. The OG will be 1.056 range. If I should do two starters, is it as simple as just adding some wort to the first starter the day after the first starter?

 

[jammin]

you will def. want to step it up. if you start now, you can probably have it ready to decant for brew day.

if you have a stir plate, you can probably get away with throwing a 1l starter into a 2l and call it good. cold crash the night before and decant prior to pitching.

i like using yeastcalculator.com to get these numbers ~

http://yeastcalculator.com/


for 10g batches, you'll find that a 5l flask is quite useful. make your stage 1 starter in a standard 2l flask and dump the entire contents right into the 5l with fresh boiled and cooled wort. this saves you the time of crashing and decanting stage 1 and ensure you transfer ALL the yeast. good for yeast health too i assume to not get cold crashed and warmed back up

 

[m00ps]

when I am trying to step up a starter in multiple flasks, I make as large of a starter as I can in a single one and once it shows activity, I have another flask filled with unfermented wort ready. I pour them back and forth between each other to aerate and mix up all the yeast I cant really see. Seems to work fine. Ive never had one take off and the other just sit there

 

[JustLooking]

A single 3L starter on a stir plate will be more than enough.

 

[ricshayne]

you could always step up a starter. Home-brew Dad has a great calculator for that
http://www.brewunited.com/yeast_calculator.php