[PORTERHAUS]

Anyone eperience US-05 kinda slow to drop the last bits of krausen? I sometimes see this with US-05 but never had it stick around this long. I don't mean full layer like while fermenting, high krausen came and went. 2 weeks now, the beer is almost clear but there's still a few floaters up on top.  It could also be the Cocoa I added at the end of the boil. It was a Chocolate Porter and I'm also dry-beaning some coffee so all that might have something to add to it. It's cold crashing now, gonna see how it does before I keg it up.

I didn't check gravity, I rarely do until I keg it. Based on taste, it seemed fine and was fermented out and cleaned up a couple days ago when I added the coffee. Not too worried about it, just wondering if others have had this with US-05.

[klickitat jim]

Probably its foam rather than actual krausen. It happens. Depends on how much foam positive stuff is in the wort. I think...

[mainebrewer]

I have experienced the same with WLP001, 1056 and US05. It is random, sometimes the krausen will last for 2 weeks. Doesn't seem to affect the beer quality in any way I can taste/smell.

[Hooper]

I've had a fluffy layer that did not drop with wlp644...drained under the fluffy...to fill the keg with 5 gallons of awesome brew...has happened twice with this strain...

[PORTERHAUS]

Yeah I guess this is more of a "foam" on top. Some of it is even crusted. Still even after cold crashing, it's sticking around on top. I'm kegging this batch later today, just going to rack from under the top.

[JT]

Yeah I've had this.  Most times warming the beer up for a few days will speed it along.  If the gravity is stable you can cold crash it to drop most all of it.  The last beer I just kegged with us 05 still had a few small floaters after cold crashing.  No worries.  Or just rack from underneath it.
If only I can get my beers to produce the same 2 week foam stand...

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[majorvices]

It often happens with low floccing top cropping strains. You can swirl the beer a round a little to break up and usually it drops.

[factory]

I've noticed this occurring with US-05 and beers that contain a relatively high proportion of crystal and or roasted malts.  I just swirl to break it up, let it settle for a day or two and rack.  Haven't noticed any off-flavors.

[coolman26]

Made an IPA with 007.  It had a thick foam that made it almost 3 weeks.  Looked at it one day and it was there, next day was gone.  I was going to skim it before I cold crashed it, but it was gone. 

[PORTERHAUS]

I tried just posting the pic but I can't seem to do so. Does anyone know what is going on in this pic from this link? This is pretty much what I saw in my carboy and prompted me to post this thread and ask about this. I thought it was just some left over krausen/foam/particulate...etc from the fermentation but the beer has an off flavor and aroma. This looks exactly like what I seen on top of my beer, just not quite that bad. It's also hard to see but the areas inbetween the clusters of flakes there is a slight oily sheen/film to the top of the beer. I also seen some of that in my batch.

So looking at the pic in this link, anyone know what this is?
https://byo.com/stories/issue/item/3134-beer-spoilage-advanced-brewing

[klickitat jim]

Looks like a bacterial pelicle to me. Hard to say which bacteria from a photo with no other clues.

[PORTERHAUS]

I think I just got paronoid with this because of my last 2 batches where I did detect an off flavor and aroma. I did see some floaties on top of this last batch I thought where out of the ordinary but was nothing extreme. I don't think this batch has any problems. I think I was mainly tasting young beer, this one is going to need a little bit to come together thats all. Samples now that I have it kegged and carbonating are much better than what I had at kegging time.