I started my first grow using the PF Tek a little over a week ago. All 12 jars seem to be doing fine, a few look like they're almost done and I haven't noticed any contam. I'm not sure when they'll be ready though, because they seem to colonizing from the bottom up. I read in the description of the PF-Tek that the bottom of the jar is usually colonized last.
In my case, the bottoms of a few jars are already colonized, but not the tops. How will I know when they are fully colonized and ready to be moved into a terrarium? I can't see through the lid or the layer of dry vermiculite, and I don't want to risk exposing the cakes to contam if there's an empty spot. Advice?
In my case, the bottoms of a few jars are already colonized, but not the tops. How will I know when they are fully colonized and ready to be moved into a terrarium? I can't see through the lid or the layer of dry vermiculite, and I don't want to risk exposing the cakes to contam if there's an empty spot. Advice?