Pitched too High

[West_End_Brewery]

Hello,
Yesterday I pitched some rehydrated S05 and too late noticed that the temperature was too high, around 35 degrees Celsius. 12 Hours later I'm worried I have stressed the yeast because there is very little head. Also notably the heater was on in my temperature control fridge which I wouldn't expect after 12 hours.

I do think the yeast looks like it will pick up, there is a thin yeast head on the beer, its just not going with the usual 505 bang! Should I pitch more yeast? I'm worried about the flavour implications if this yeast is struggling.

Thanks

[symptomlesscoma]

Had exactly the same problem on thurs with my brew with a repitch of US 05. It didn't even seem to form a crust but there is still activity going on.
I've brewed beer with US 05 with temperature too high before and it turned out ok.
If the beer in FV isn't completely flat then its still fermenting and should be fine, if it goes flat (ie no bubbles on top) then i would pitch more yeast.
Whats prob happend is yeast has fermented too rapidly cos of high temp and done alot of the work in 12 hours that it would have done over 3 days normally. I've found that US 05 doesn't give that many bad flavours if this happens tho.
Should turn out fine, hopefully.

[Wolfy]

If you were rehydrating yeast before pitching, the recommended temperature of the water is about 35-40C, so in terms of just the temprature, you should not have stressed the yeast any more than usual if you pitched them directly.
If you give it some time it should be fine, having said that I can't see why pitching some more yeast would hurt, most likely when pitching directly into hot wort you are going to suffer some yeast-fatalities, so it would not hurt if you did want to pitch a little more yeast.

[West_End_Brewery]

Thanks for the replies, it did appear to pick up after a few hours without pitching any more yeast and looks to be fermenting fine now (I can't take a sample though). Now I am actually more worried about the implications of aerating at this temperature, but for now I will stop worrying and see how it goes!

Thanks again