What is this stuff in my carboy? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > Beginners Beer Brewing Forum > What is this stuff in my carboy?

Thread Tools
Old 08-27-2009, 12:54 AM   #1
Aug 2009
Rochester, NY
Posts: 6
Liked 1 Times on 1 Posts

Hi All,

I've been lurking in the forums here, trying to find an answer to what I could have done to get this result...but since I wanted to sign up for the forum anyway, I thought I might as well post.

The hobby of home brewing kind of came out of left field for me. I was shopping at beers of the world (aka, heaven) here in Rochester, and picked up Charlie Papazian's "Joy of Home Brewing", and then followed that up with Palmer's book.

I decided to do a IPA kit from True Brew for my first beer (extract and came with specialty grains to steep).

I finally took the plunge last Saturday night, followed Palmer's advice pretty much right from the book, and sanitized like a crazy person (used Starsan). I had a few snags, like my filter clogging up in the funnel and me panicking and dumping most of the trub into the carboy, but overall it went well.

I pitched my yeast (kit came with 1 6g pack of Muntons) at about midnight (crazy saturday night...I know), and when I checked about 13 hours later, it was fermenting like mad.

However, there was this greenish-yellowish stuff that I didn't anticipate on the top of the carboy all the way up to the stopper, and what looked like the same on the bottom:

Imageshack - picture002hvz

By Monday night, fermentation had slowed significantly, but the buildup was still there.

I took additional pics tonight:

Imageshack - picture015ddd
Imageshack - picture005hls
Imageshack - picture007acg

Just as a note, the black specks are Oak chips that came with the kit - I steam sanitized them.

The only thing that I can think of is that I shook the carboy after pitching, as Palmer suggests, to aerate the wort...is this yeast that I inadvertently shook onto the top/sides? Could it be related to the fact that I dumped most of the trub in by accident? I'm just taking stabs at it, and I figured, rather than worry, I'll post and let the pros tell me what I did wrong...

Thanks Guys!

Reply With Quote
Old 08-27-2009, 12:57 AM   #2
SavageSteve's Avatar
Sep 2007
Posts: 987
Liked 9 Times on 6 Posts

It's normal-- just a collection of trub, hop particles, and yeast. Looks like it was quite an active fermentation!

On Deck: Jamil's Vanilla Robust Porter
Fermenting: Orange Blossom Mead
Kegs: Element 56 Pale Ale, Ron's Belgian Blonde, Summer'n Saison, Furloughktoberfest '09, Grateful Pale Ale, Sam Adams Cream Stout Clone, EdWort's Apfelwein
Planning: n/a

Reply With Quote
Old 08-27-2009, 12:59 AM   #3
Post Hoc Ergo Propter Hoc
Revvy's Avatar
Dec 2007
"Detroitish" Michigan
Posts: 40,921
Liked 3192 Times on 1885 Posts

Its' called krausen, it is perfectlly normal and necessary in the making of beer.

I call it the house that yeast builds...but really it IS yeast.

It is the foamy, rocky head of yeast that forms at the peak of fermentation.

Towards the end of fermentation it will fall down to the bottom, and as it doest it will pull excess proteins and off flavor chemicals that are the byproducts of fermentation down out of solution so it won't affect the taste of your beer.

Krausen is cool, especially since each one is different.

Like my snazzy new avatar? Get Sons of Zymurgy swag, here, and brew with the best.

Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman

I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew

Reply With Quote
Old 08-27-2009, 01:30 AM   #4
Jan 2008
Haymarket VA
Posts: 1,172
Liked 4 Times on 4 Posts

Originally Posted by SavageSteve View Post
It's normal-- just a collection of trub, hop particles, and yeast. Looks like it was quite an active fermentation!

The stuff in the middle there is beer, forgot that

Reply With Quote
Old 08-27-2009, 01:37 AM   #5
Aug 2009
Rochester, NY
Posts: 6
Liked 1 Times on 1 Posts

Awesome, thanks for the replies and advice guys!

This forum is fantastic, I'm looking forward to learning much more from everyone and contributing what I can.


Reply With Quote
Old 08-27-2009, 03:40 PM   #6
Arkador's Avatar
Apr 2009
Fort Worth, TX
Posts: 1,702
Liked 16 Times on 15 Posts

Looks like a beautiful healthy fermentation!

My biggest concern for future baths would be better temprature control. do a search on "Swamp Cooler"

Fermenting some styles above 70 is just fine, but alot of styles of ales do best in the mid to lower 60's

Reply With Quote
Old 08-27-2009, 03:48 PM   #7
ChshreCat's Avatar
Aug 2008
Camano Island, Washington
Posts: 11,533
Liked 542 Times on 434 Posts

Looking at the first picture, I would say that your problem is that your fermenter is sideways and somehow glued to a wall.
"Science + beer = good!"
-Adam Savage

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Free beer stuff (no actual stuff here) Donthoseme General Beer Discussion 47 02-14-2011 04:35 PM
Carboy w/ Spigot vs Reg Carboy+Auto-Siphon?? mikeyp123 Beginners Beer Brewing Forum 4 06-24-2009 04:06 PM
Stuff stuck on top of the carboy rodif Beginners Beer Brewing Forum 13 02-15-2009 05:30 PM
Stuff collecting on side of carboy? mullimat Beginners Beer Brewing Forum 1 03-16-2008 04:00 PM
white stuff on side of carboy scilost Beginners Beer Brewing Forum 3 07-20-2006 04:09 PM

Forum Jump