Hi all,
I researched extensively before my first attempt at brewing yesterday and while I feel it went well considering my noobness I have a question. After some small problems on brew day (found out a glass cook top is not a good place to try and boil 3 gallons of water in a hot water bath canner...) I pitched the yeast and let it work.
Using a salted ice water bath and some slow and careful stirring I managed to cool my wort down to 78 degrees within 20 minutes, which I was rather proud of. The boiled/aerated water already in the carboy was around 83-85 degrees when I poured the cooled wort in and pitched the yeast. I stuck the carboy in a closet where it was about 68 degrees. Within two hours the bubbler on the airlock was going crazy and the foamy krausen started forming. Bubbles were coming out 2-3 per second. The temperature strip stuck to the side of the carboy read over 82 degrees. I am assuming the heating action of fermentation was not allowing the batch to cool to room temp.
It's a 6 gallon carboy and there is a good 8 inches of head space, but this rapidly filled with foam to the point where I had to swap the airlock for a blowoff hose. Within 10 hours of pitching the yeast, the krausen formed and eased back to the point where I could put the air lock back on. At this point I moved the carboy into my basement where it's about 55 degrees (I live in Michigan). This morning I went downstairs and the temp strip reads 64 degrees. Perfect. I didn't want it to get any colder so I brought the carboy back upstairs in the closet where I had it yesterday.
So I am wondering: is it normal for the fermentation to be so vigorous so early and back off so quickly? It has been 24 hours. At this writing, the airlock is bubbling only once every 30 seconds and all the krausen has stuck to the shoulders and sides of the carboy as the foam retreated.
Is there any merit in thinking something is wrong, like my fermentation burned too hot too quickly??




