Yeast temperature

[rayhaynes62]

I just added yeast to the fermenter and accidentally set temp to 30deg instead of 20deg. I have now backed it down to 20deg.
Question has this ruined the yeast?

 

[yankinoz]

Probably not, but two bits of information are needed. (1) which yeast? (2) how soon and how fast did you cool it?

 

[rayhaynes62]

Philly sour yeast and high temp was left over night noticed it this morning and corrected it.

 

[yankinoz]

Lallemand provides recommended temp ranges on all their yeasts, in this case 20-30 C, so your beer is not ruined. As for subtler effects on flavour, I have no experience with that yeast. Others in this forum may want to comment.

Lallemand technical descriptions also give time to completion of fermentation at x temp, in this case 20C. That does not mean you need to ferment at that temp.

 

[rayhaynes62]

See if I get any action in the next day

 

[JDW81]

See if I get any action in the next day

You won't have killed the yeast at those temps, so you should get fermentation.

I don't know that yeast, so don't know what sort of flavour profile you'll get at those higher temps. You'll probably be OK though.

 

[Roosterboy]

You'll get some extra esters, I wouldn't worry too much about it though.