Ryat66
Well-Known Member
I'm trying to understand something a little bit better... I am getting ready to brew my first lager but I'm trying to gain a better understanding of how to approach my starter; 5.25 gallons of 1.055 lager wort requires ~400B cells. I used some hypothetical variables as I don't actually have any yeast in hand yet therefore, I don't know the date on it. However, I input the above data with a date of 12/8/2015 (completely arbitrary) and it gave me 2 vials in a 3.37 liter starter even with the slider to the far right.
If I jump over to Brewers Friend Yeast Calculator and input the exact same variables (using ProBrewer 1.5 as I assume Mr. Malty is using the same factor for lagers) and use Kai's growth model it seems that I can get to the same pitch rate with 1 vial in a ~2.5 liter starter. That is no problem as I have a 5 liter flask.
So, here are my three options as I see it:
1. Use 2 vials in a 3.37 liter starter
2. Use 1 vial in a ~2.5 liter starter
3. Step up my starter
Please note, I'm not looking for the easiest or cheapest way to accomplish this, I'm looking for the best way. With that in mind, which method is the most advantageous for a quality end result?
The one burning question I have...is there an absolute ceiling on the growth of one vial of yeast in a starter?
If I jump over to Brewers Friend Yeast Calculator and input the exact same variables (using ProBrewer 1.5 as I assume Mr. Malty is using the same factor for lagers) and use Kai's growth model it seems that I can get to the same pitch rate with 1 vial in a ~2.5 liter starter. That is no problem as I have a 5 liter flask.
So, here are my three options as I see it:
1. Use 2 vials in a 3.37 liter starter
2. Use 1 vial in a ~2.5 liter starter
3. Step up my starter
Please note, I'm not looking for the easiest or cheapest way to accomplish this, I'm looking for the best way. With that in mind, which method is the most advantageous for a quality end result?
The one burning question I have...is there an absolute ceiling on the growth of one vial of yeast in a starter?