Please guestimate how many WPL 830 cells per jar left to right (apex one week old) ?
It is tough to estimate cells count from picture, but you can do it by yourself.
Assume 1-2B/ml or use Wyeast instructions to estimate:http://www.wyeastlab.com/com-yeast-harvest.cfm
We are only 10,000 years into beer... there are thousands of years left to go!
Things are bound to change!!Brewroom with HERMS buildFermentation chamber and Keezer.. a.k.a. FermKeezer
Unwashed yeast slurry has about 1 B cells/ml. Washed yeast slurry has about 2.4 B cells/ml.
not much then
If you have stirplate you don't need huge amount of yeast, just propagate from what you have.
If you don't have it, this is the reason to build/buy one.