Interesting stratification in yeast starter

[syvmn]

I just thought I would post this as an interesting picture. This was started about 30 hours ago and is a mixture of both US-05 Dry Yeast and Wyeast 1084 Irish Ale Yeast. The reason I combined the two is because I had roughly washed them about a week ago and forgot which jars contained which yeast. I decided just to throw them both into a starter and see what the resulting beer (Irish Red) ends up tasting like.

You can clearly see the three different layers. The bottom is trub that was left over from my "washing", and then the two different layers of yeast. At least thats what I think it is.

 

[unionrdr]

Looks like finer trub on the top layer. My bottom layer of trub looks that same color as you have on top. That course grainy stuff on the bottom looks funky. Never saw that. But I strain though,so no grainy mash remains get into the fermenter.

 

[pkrath84]

The bottom's trub with hop material. The white stuff is the yeast if I'm not mistaken. The top tan layer though... Unionrdr is probably right, maybe finer trub? I've never seen yeast turnout that color, so that'd be my best guess too

 

[syvmn]

It doesn't make sense that your bottom layer of trub looks like my top layer. If they were the same that layer would be below the yeast layer. Right?

 

[unionrdr]

You'd think so,yeah. Yeast to me has always been white to a sort of Devonshire cream color. My trub layer on the bottom has always looked like his top layer. This is weird...