CBMbrewer
Well-Known Member
- Joined
- Nov 30, 2011
- Messages
- 760
- Reaction score
- 63
I just want to verify that I am thinking this through correctly.
Assuming that my washed yeast has about 2 billion cells per ml which is the default setting for pitching from slurry on Mr Malty.
If I go to Yeastcalc.com, assuming I have 50ml of slurry with 100 billion cells I plug 100 into the initial cell count with the production date set for the date that I harvested the yeast, april 1st, it tells me I have 71 billion viable yeast cells.
For a 5 gallon batch with a gravity of 1.05 it says I need 175 Billion cells.
So with my 50 ml of washed yeast it tells me I need a 2 liter starter with a gravity of 1.037 to give me the 175 Billion cells I need.
Is this correct?
Should I assume 2 billion cells per ml and use the harvesting date as the production date?
Assuming that my washed yeast has about 2 billion cells per ml which is the default setting for pitching from slurry on Mr Malty.
If I go to Yeastcalc.com, assuming I have 50ml of slurry with 100 billion cells I plug 100 into the initial cell count with the production date set for the date that I harvested the yeast, april 1st, it tells me I have 71 billion viable yeast cells.
For a 5 gallon batch with a gravity of 1.05 it says I need 175 Billion cells.
So with my 50 ml of washed yeast it tells me I need a 2 liter starter with a gravity of 1.037 to give me the 175 Billion cells I need.
Is this correct?
Should I assume 2 billion cells per ml and use the harvesting date as the production date?