Fermentation temerature advice

[Frisp]

I have just managed to check the air temperature inside my airing cupboard and it seems to be 25 degrees C. Is that a bit on the warm side?

My brew is bubbling away nicley but I remember somewhere that its best not to brew too hot.
Jim

[Bru4u]

It is a bit high, it means the yeast has a free run and could generate some funky flavours, it would be better about 5 deg less, it will still ferment just a bit quicker, I would try elsewhere in the house that is stable over 18 deg, 21 would be great. one of the worst things would be large fluctuations in temp, you may not get full fermentation so the fg might be a bit high.
Check around the rest of the house.