Anybody know what these things are? I pulled this yeast sample out of the cake of a red that I just racked. They look like little blue rods, some of them are lined up in twos, end to end. Could they be flakes of dried methylene blue?
Is that beer stone? I always expected beer stone to look like sugar crystals. One thing I didn't mention: while I was observing, some of those little blue rods seemed to be wiggling... They are very uniform in shape, some are a little smaller.
Just cellular debris and other junk from fermentation- protein and whatnot. Bacteria are much smaller.
I have noticed the wiggling too.
Kai
I looked at a similar sample with a microbiologist friend. He said that those are bacteria and that they jiggle when they are alive. They don't exactly swim, but they do move a bit. The ones we saw were about 1/3 that size and roughly equal in population to the yeast. I thought the beer was disgusting at that point, but others disagreed and thought that it was drinkable.
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