Hey all. Just found this place looking for an answer. I have a pilsner in a glass secondary that's been there about 4 or 5 weeks. I've never kept one in there that long but I've heard that it's ok. I was about to keg it today and noticed a lot of bubbles on top... I've never seen this before and I have no idea what this is. I"ve read around about oxidation and I do have maybe....6 to 8 inches to the top of the carboy.... is this oxidized? Or is this normal? Just as a better description there's a ring of them around the outside and maybe 4 or 5 in the middle with a large cluster of 5 or 6....looks like they have yeast particles or something on them....?? and house temp is always right around 70 to 75... any ideas? Really appreciate it cause I've really been anticipating this batch...