So I brewed 22l of a 1085 AG beer (a Nøgne à clone) on Monday, & pitched 2 packs rehydrated Notthingham that evening... all was starting to bubble away nicely yesterday morning at around 20 degrees ambient, though didnt notice what the temp strip was saying, & left for work... then got home to find a very high krausen, the airlock going fully nuts, & the temp strip stating around 24 degrees! got it straight in a water bath to try to bring the temp down, added cool water a couple of times that evening, then again this morning as it was back around 22, & airlock still going mental. got back a little while ago to find the airlock quietened down to once every ~8 secs & the krausen disappeared, so out of curiosity took a gravity reading -1020!!!
I guess I have some concerns about off flavours with the temp getting so high - especially the first day, when I don't REALLY know how hot it got - and I've also never had a brew seemingly almost ferment out in 48 hrs. still planning on keeping it in primary for two weeks & dry hopping the last five days, but is this behaviour normal for a high gravity brew? I've also never used Nottingham before, so don't really know how it behaves... did I also massively over-pitch the yeast with two packs?
I guess I have some concerns about off flavours with the temp getting so high - especially the first day, when I don't REALLY know how hot it got - and I've also never had a brew seemingly almost ferment out in 48 hrs. still planning on keeping it in primary for two weeks & dry hopping the last five days, but is this behaviour normal for a high gravity brew? I've also never used Nottingham before, so don't really know how it behaves... did I also massively over-pitch the yeast with two packs?
