tom_hampton
Grandmaster Brewer
- Joined
- Oct 8, 2011
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There are two things I care about when creating a starter:
1. How much starter do I need to grow. ---already provided by beersmith
2. What is my starting starter size.
According to Chris White yeast starters should have an initial concentration between 50-100 mil/ml. So, that drives my initial starter size...based on my yeast slurry amount and viability.
Since I use a stir plate, with each step, I can triple the starter size until I reach my target volume. I think the formula is really 2*stir-plate-factor. I use 1.5 for the stir-plate factor since that most closely follows all of the available data.
1. How much starter do I need to grow. ---already provided by beersmith
2. What is my starting starter size.
According to Chris White yeast starters should have an initial concentration between 50-100 mil/ml. So, that drives my initial starter size...based on my yeast slurry amount and viability.
Since I use a stir plate, with each step, I can triple the starter size until I reach my target volume. I think the formula is really 2*stir-plate-factor. I use 1.5 for the stir-plate factor since that most closely follows all of the available data.