Yeast: Lows and Highs?

[BriarwoodBrewer]

I understand yeast can go dormant at cold temps, but how about a high temp? Can you damage the yeast if the temp gets above say...90 degrees?

 

[Mermaid]

I think the temps of your wort has to be around 120 F to kill your yeast, but it's my understanding that there are not too many strains that will tolerate a higher heat without giving off unpleasant flavors. I would try searching on the particular yeast strain you used, and see whether or not it's heat tolerant.

 

[FreeM80s]

I think the temps of your wort has to be around 120 F to kill your yeast

I've heard it was lower than that. Over 100F will kill most strains I believe

I understand yeast can go dormant at cold temps, but how about a high temp? Can you damage the yeast if the temp gets above say...90 degrees?

dry, liquid? and are you talking about storing yeast or while fermenting? or did you pitch too hot maybe?

 

[BriarwoodBrewer]

Great! I live in a cool area and it was high of 59 today. I made some beer today and left for the evening with some friends. My wife thought she would lend me a hand and place an electric blanket around my fermentor so it wouldn't get too cold! I came home to find a warm carboy! No bubbles yet, I hope she didn't screw something up! I still love her, she was trying to help!

 

[FreeM80s]

Great! I live in a cool area and it was high of 59 today. I made some beer today and left for the evening with some friends. My wife thought she would lend me a hand and place an electric blanket around my fermentor so it wouldn't get too cold! I came home to find a warm carboy! No bubbles yet, I hope she didn't screw something up! I still love her, she was trying to help!

worst case scenario is you just repitch more yeast. nbd