Making a 2nd starter off of a current starter

Rcbandl · Dec 20, 2014

Brewing today and I made a 1.5L starter. I only need 1.2L for todays brew and am planning on holding back a small amount to culture another starter for next weeks brew.

The question is should I step it up or go straight to the needed amount. I will have about 250ML left after I pitch today and will need about 1.2 L for next week.

flars · Dec 20, 2014

You can step up the saved yeast for your next brew as soon as you pour off the amount needed today. There is no great viability loss holding a finished starter in the frig for a couple of weeks.

Rcbandl · Dec 20, 2014

It will just be a week. I am just wondering if I should add a full 1L wort to the 250ML slurry I will be holding back or do it in stages, say .5L then another .5

flars · Dec 20, 2014

You can do a 1 liter starter. Enter your numbers in the calculator. You want to size the starter wort to have a growth rate of at least at least one, for an effective starter. A half liter starter wort may not give you that growth rate.
http://www.brewersfriend.com/yeast-pitch-rate-and-starter-calculator/

flugelizor · Dec 20, 2014

All at once.
Step sizes between 1:5 up to 1:10 are OK

No problem with step size 250ml:1250ml = 1:5

Making a 2nd starter off of a current starter

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Making a 2nd starter off of a current starter

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