Odd yeast flocculation

HomeBrewTalk.com - Beer, Wine, Mead, & Cider Brewing Discussion Community.

Help Support Homebrew Talk:

TNJake

Well-Known Member
Joined
Dec 6, 2018
Messages
162
Reaction score
62
Location
knoxville
I have a patersbier in the fermenter currently and it seems healthy but it looks odd enough that I am curious. The yeast dancing around has started to clump but it still circulating. So there are corn flake looking chunks about the size of a thumb churning around. The trub on the bottom is the same and not compacted at all. Again, I'm not really worried, more just curious.

I have made this same recipe before and I loved it, the only change was doing a starter and using whirlfloc.
Yeast is 3787, which I use often.
Thoughts?
 

IslandLizard

Progressive Brewing
Staff member
Mod
Lifetime Supporter HBT Supporter
Joined
Jan 9, 2013
Messages
15,341
Reaction score
5,850
Location
Pasadena, MD
How big is that batch? How long ago did you pitch the yeast and how much?

What you're describing is what we often see when making yeast starters, with heavy flocculation when yeast density goes past a certain point.
 
OP
TNJake

TNJake

Well-Known Member
Joined
Dec 6, 2018
Messages
162
Reaction score
62
Location
knoxville
5 gal. 1 smack pack in 1.3L starter (I had a little more DME so it calculated to 1.3L.) Brewed 2 days ago
 

IslandLizard

Progressive Brewing
Staff member
Mod
Lifetime Supporter HBT Supporter
Joined
Jan 9, 2013
Messages
15,341
Reaction score
5,850
Location
Pasadena, MD
5 gal. 1 smack pack in 1.3L starter (I had a little more DME so it calculated to 1.3L.) Brewed 2 days ago
That's a decent volume for a yeast starter. 2 liter is even better, you can save some out for next time. ;)
In a 5 gallon batch you surely don't have excessive cell density, in a 1 gallon batch you might.

I've used that yeast, never seen it do anything like that in a batch, but it does clump somewhat and precipitate in starters. Not sure why it's clumping like that. You sure it's the yeast clumping, not trub floating up?

Whirlfloc does not cause yeast clumping, AFAIK. It clumps/coagulate the hot and cold break in the kettle.
 
Top