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Does your rehydrated yeast foam up a little bit?

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Elysium

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I have come across this info that rehydrated yeast slightly foam.....now my question is "why doesnt mine foam at all?"

I use safale US-05 and follow the instructions of Chris White (author of the book "Yeast"). I normally use bottled water that I boil before use.

Any thoughts? Or people who got good results and the yeast didnt foam at all?

P.S. So far sanitization was not 100% okay.....I dont know if that might have been the problem.
 

BobBailey

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I have never seen any noticeable foam on re-hydrated dry yeast. If you aerated it, which is not recommended, it would likely have foam.

Bob
 

boydster

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I usually get some foaming with US-05 when I rehydrate. It's not like a krausen but there is some foam that I then stir into a creamy slurry and pitch.
 
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Elysium

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I have never seen any noticeable foam on re-hydrated dry yeast. If you aerated it, which is not recommended, it would likely have foam.

Bob
I guess it gets a bit aerated when you stir it a bit, but why wouldnt it be okay to add air? I dont aerate it though, just asking.
 

boydster

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+1, aeration won't hurt anything while the yeast rehydrates. Nothing to worry about.
 
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