So my immersion chiller leaked quite a few drops into my wort before I noticed. The immersion chiller water was being pumped from a bucket that was not sanitized. So now that fermentation has been taking place for about a week there is a slight greenish tan colored foam layer that I was wondering if it is normal yeast activity or a possible infection from the immersion chiller leak.
all 3 look normal
The green is just hop debris. In a couple of weeks this will begin settling with the rest of the krausen.
Ok, thanks!