Author Topic: Yeast starter - options beyond with or without stir plate  (Read 3098 times)

Offline toddm

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Yeast starter - options beyond with or without stir plate
« on: September 22, 2011, 08:58:13 AM »
Looking at the yeast starter tabs. There are two options, either with a stir plate or without. The calculations without a stir plate are they geared towards just making a starter and a quick shake, or a dose of O2, or shaking throughout? For each way of oxygenating the starter, some work better than others.

I don't think I'll use a stir plate in the near future.

Is there anyway of playing with the parameters to adjust the starter growth based on using other means of oxygenating the starter?

Offline BeerSmith

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Re: Yeast starter - options beyond with or without stir plate
« Reply #1 on: September 22, 2011, 03:53:44 PM »
Hi,
  The defaults for stir plate assume a continuous stir plate which agitates the entire yeast starter.

  You can, however, go into the Options dialog->Yeast Starter tab and modify the "Stir plate factor" which is the growth bonus (i.e. 2.66 times the growth) for using a stir plate.

  I suppose if you wanted to you could check the stir plate box and then enter a much smaller "Stir plate factor" to represent the extra growth from the method you picked.

Brad
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