Yeast layers from starter

[portguy]

So, i made a 1L starter from some 3 month old porter slurry. Starter fermented well and was done in about 48 hours on a stir plate.

After 10 hours in the fridge i can see two layers. The starter beer tasted fine for what it is.

Could that top layer be DME protein?

Original post was made here:
https://www.homebrewtalk.com/showthread.php?t=456628

But i'm afraid it got unnoticed.

Forgive me the double post.

Edit: after 3 days it looks exactly the same. Top layer is not compacting that much.

 

[RM-MN]

I believe your top layer is the yeast and the bottom layer is proteins.