This is my first grow, and I've been following PF Tek protocol. My jars are almost fully colonized, but over the past week I've noticed some light yellow/brown discoloration, and I'd love to hear any feedback about whether this is contamination or simply metabolites.
Looking at other posts, my jars seem slightly more similar to pics of metabolites, but that is an uneducated guess.
Here's a pic of one of the jars with more noticeable discoloration.
Another thing to note is that I used around 20ccs of spore's in distilled water spread among 6 half pint jars. I went a little overboard and this may added a bit too much moisture to the jars.
Any and all feedback is much appreciated. Thanks!