So I was racking my latest batch over from secondary (5 gal carboy) to a keg last night, and when I got down near the bottom noticed a sort of yeasty looking ring on the glass about 4 inches from the bottom of the carboy - maybe about 1/16 of an inch from top to bottom of the ring. Colorwise it was more of a greyish hue than the yeast sediment I am used to.
Didn't really think too much of it until I took the customary sip of my hydrometer sample - there is definitely an off flavor in the beer now compared to when I transferred from primary to secondary. I am not a flavor guru, so tough to describe it from my taste vocabulary, but my wife noticed it too and said that it reminded her of a lychee (small asian fruit - I know, can't get much more obscure than that).
So maybe it is a little premature to say there is really something wrong - I really want to try it in a few days and see what it is like cold and with bubbles. But in the meantime, anyone else ever see something like this? i.e. the greyish ring in the carboy?
Never had a batch with a weird flavor before, but things I did drastically different this batch:
1) first all grain batch ever. yeah, just a minor change there.
2) got a carboy cap after reading the rave reviews about them here, and used it to start my siphons along with an extra 5 foot length of hose to blow through.
So I am thinking #2 is maybe a culprit. Guess I am looking for confirmation that this really could be it.