I bottled my milk stout last night and tried to harvest some yeast. The first image below is what I got out of my fermentor after adding some sterilized water. Am I correct in thinking that the middle layer in the first picture is yeast? I decanted the top layer and tried to pour just the middle layer in my jars (2nd picture). The jars have been in the fridge for only about 10 hours now. In my 3rd picture, I'm trying to figure out which layer is the yeast. It looks like it's the thin white layer in the middle and I just collected a bunch of trub on the bottom. I'm brewing again today so would it be okay to decant one of the jars and pitch this into my wort? I do have some dry yeast as backup if I should avoid it right now.