How much yeast to reuse

[Falstaff]

I'm bottle 5ga tomorrow and want to fill the carboy right back up again. I used to just pour the wort right on top of the yeast cake, but I had over pitching issues. I am using kveik M12.

How much of the yeast cake should I use?

Should I just use the cake or some of the beer, too? I've heard the yeast at the bottom is the less viable yeast that flocculated early.

 

[Jag75]

Unless your finding out the cell count it's a crap shoot. You could dump just a little bit , which would be the stuff on the very bottom and I think you'll be fine.

I'm not sure but I think yeast slurry contains 1-2 billion cells per ml. Don't quote me but I think I read that .

 

[Jag75]

Found it

https://www.google.com/amp/s/beeran...ga-guide-to-harvesting-and-re-pitching-yeast/