So I brewed my first batch last weekend - the NB Irish Red Extract. Fermentation went pretty well and 1 week in, it smelled great. I have the gravity testing kit, but figured I would just wait the 2 weeks in primary recommended then move to secondary.
Well I checked it tonight and popped open to smell and it smells off. Not terrible, but just not right/the same. So I decided to take it off the spent yeast and sludge that was settling at the bottom. Moved it to secondary and it doesnt smell as bad. The spent yeast/sludge though has the same strong smell I was getting when I opened it in the primary.
I do not suspect contamination to be an issue. I was very, very thorough in keeping everything clean as I remember that was a vital part when I was brewing in the past.
My hypothesis is that since it fermented so quickly last week that the spent yeast was quick to settle and perhaps sitting on it for the extra few days threw the smell off. Should I be worried? I am planning on letting it sit in secondary for another 1-2 weeks before bottling. Will this help for the beer to right itself? (Not sure that can happen)
Lesson learned: Check FG 1 week after brew to determine when done. (Although I am not sure sitting on yeast for an extra few days really made all the difference)
Thanks in advance for any help.