How do you estimate your cell count in harvested yeast?

[pmkealiher]

I've just recently started getting into harvesting and still not sure how to tell how much I should use. I currently have about 1/2 cup of Wy 1010 in my fridge that is pretty compacted and looks pretty pure. Is there any way to estimate cell count by cups or ml? Thanks

 

[Bsquared]

Go to the bottom of this wyeast page. I find it very helpful for estimating yeast counts.

http://www.wyeastlab.com/hb_pitchrates.cfm

 

[duboman]

I lay them all out across a large sanitized dining room table and let my 3 kids count them up for me.....

 

[tre9er]

I have no idea except to say that I've harvested and split into 4 jars and those took off and fermented out on mid-gravity beers just great with no starters. I'm interested in the answers you receive as well as the Wyeast site (HT for that, Bsquared)