Krausen on stirplate

[W0rthog]

Expert,
I am ramping up some yeast on a stir plate and in the 2nd round, I'm getting krausen. In the past, I haven't got krausen. I'm not too concerned, but would like to know if this is typical or expected.
Thanks in advance.

 

[theveganbrewer]

Typical. Might have gotten a little warmer, maybe it just woke up a bit more than before. Good sign though.

 

[LAbrewer]

If you don't get krausen on round two then it is abnormal. Watch for overflow.

 

[cosmo]

Absolutley normal. I do 2 or 3 step ups from harvested yeast and the yeast always gets more active with each step. It is aproaching the peak of health. My advice is either don't fill the starter more than half full (may need bigger container), or use foam control.

 

[zmad2000]

Krausen on a starter is a sign that the yeast is good and healthy.

 

[W0rthog]

Thank you for the feedback

 

[freeflydude]

I had Krausen develop after I put a starter in the fridge to chill. Worried me a little because it overflowed and I was hoping nothing got infected. I ended up pitching the whole thing instead of decanting and it was one of the most active fermentations I've had. The damn thing just kept going. Made great beer.