Yeast Slurry Calculations

[Yenren]

Moved post here.
I am wondering about the Yeast pitching calculator with reference to the slurry option. Dose the calculator assume that the slurry is washed or just put straight in from the fermenter.
Thanks

 

[Ozarks Mountain Brewery]

thats a good question, you really have no idea how many cells are in any slurry so it really doesn't matter, if its a washed slurry my practice is count half the cell count for the same amount used than new, and that really depends on how old it is