How much yeast do we get from dregs?

[TapeDeck]

So you save the dregs of a few of your favorite chunky beers, or a whole bunch of your favorite not-so-chunky beers.

You make a 1 L starter and spin for 48 hours. And you have clear yeast growth. How do you know how much you have made? Don't you sort of need a ballpark to know how many times to step up, etc?

 

[dzlater]

If you ae using something with graduations on it to make your starter, let it settle out and then you can see how much yeast is in there.

 

[WoodlandBrew]

A resonable estimate for yeast grown in a wort from DME is 2 million per ml. But you really don't know for sure without a microscope.

Recently I harvested some yeast from a bottle than only had about 7 million cells.

http://woodlandbrew.blogspot.com/2013/01/how-to-harvest-yeast-from-bottle.html