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Is this normal? (black krausen ring in fermenter)

 
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joe89



Joined: 27 Feb 2015
Posts: 17
Location: Yorkshire, UK


PostLink    Posted: Sat Oct 10, 2015 2:25 pm    Post subject: Is this normal? (black krausen ring in fermenter) Reply with quote


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This is the first time I have used a stainless fermenter and as you can see from the pic there is a black ring from where the krusen has been.
Anybody have any idea what this could be? I cleaned the fermenter with icicle an and then passivated with starsan. Maybe I did something wrong with the cleaning procedure.
The beer I brewed is kals session able pale so I don't think any of the ingredients could be a contributing factor. Also the beer tastes great no odd flavours.

Thanks Joe



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kal
Forum Administrator


Joined: 12 Dec 2010
Posts: 10597
Location: Ottawa, Canada

Drinking: German Lager, Electric Creamsicle, London Pride, Kolsch, German Pils, Belgian Dubbel, Russian Imperial Stout, Black Butte Porter

Working on: Weizen, Belgian Quad, Belgian IPA


PostLink    Posted: Sat Oct 10, 2015 5:23 pm    Post subject: Reply with quote

Weird. I don't think I've ever seen black krausen. Various shades of brown, yes, but not black if I remember correctly.

How's the beer taste?

Quote:
I cleaned the fermenter with icicle an and then passivated with starsan.

What do you mean by icicle?

Kal

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joe89



Joined: 27 Feb 2015
Posts: 17
Location: Yorkshire, UK


PostLink    Posted: Sat Oct 10, 2015 7:16 pm    Post subject: Reply with quote

Yeah tastes great which is reassuring but still strange not knowing what caused it.

Sorry that should have read oxiclean. iPhone autocorrect causing confusion as usual.
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djp0318



Joined: 17 Apr 2014
Posts: 16
Location: Belgium


PostLink    Posted: Wed Oct 14, 2015 4:02 pm    Post subject: Reply with quote

I have seen that on a couple of my brews in my Blichmann fermenter: Mainly the very hoppy IPA's.

It comes off very easily with a scotch pad and warm water so hasn't concerned me too much..

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NervousDad



Joined: 21 Jun 2015
Posts: 21



PostLink    Posted: Wed Oct 14, 2015 7:35 pm    Post subject: Reply with quote

I get it on all of my stainless fermentor. SS Brewtech and stout.
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Mr Walleye



Joined: 23 Dec 2013
Posts: 73
Location: Ossining, NY


PostLink    Posted: Fri Oct 16, 2015 3:16 am    Post subject: Reply with quote

Same here in my stainless conicals too.
From tan, light brown, to black.
I have never had an issue with the batch though!
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Topdollar



Joined: 20 Aug 2015
Posts: 65



PostLink    Posted: Sat Jun 18, 2016 4:55 am    Post subject: Reply with quote

Third...or fourth for the black ring. Just did Kal's Sessionable IPA and noticed a bit of black in my SS Brewtech Chronicles. Beer was fantastic. That came right off.
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keo



Joined: 29 Nov 2016
Posts: 1



PostLink    Posted: Tue Nov 29, 2016 3:25 am    Post subject: Reply with quote

Had the same thing with my first brew on my new brutus 10. Was brewing Brew Dog's Peroxide Punk from the DIY Dog.

Was extremely relieved when I discovered this thread.

As has been said already - no off flavours, just damn tasty beer.



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sillbeer



Joined: 15 Sep 2016
Posts: 46
Location: West Point, UT


PostLink    Posted: Tue Nov 29, 2016 9:15 pm    Post subject: Reply with quote

I've had light to dark brown rings on my SS Brewtech fermenters. Maybe it needs to be cleaned more. I've heard of people reporting black residue in their SS fermenters because of improper cleaning. I would have to get the instructions again, but SS Brewtech recommends cleaning/soaking with TSP and then passivating with StarSan.
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