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Old 03-17-2011, 01:12 AM   #1
npauley88
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Default Question about cold break...

A buddy of mine and I were discussing cold break while we were filling the carboys up with wort post chilling.

The beer was coming up a bit cloudy and I mentioned that the cloudiness could be mainly attributed to the proteins, fats, etc. that have fallen out of suspension.

My friend asserted that it was not mainly proteins, that it was mostly hop residue that was causing the cloudiness.

My question is, is what is cold break mainly comprised of exactly?


Here are some of the beer specs if necessary:
All-grain
10 Gallon batch of an IPA
22.5 lbs of grain
5 oz of hops

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Old 03-17-2011, 01:27 AM   #2
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http://www.howtobrew.com/section1/chapter7-4.html
http://www.beer-brewing.com/beer-bre..._formation.htm
Protein and polyphenol compounds.
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Old 03-17-2011, 01:28 AM   #3
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Cold break is a protein and tannin coagulation that forms when your wort is cooled rapidly. Hop solids can also cause cloudy wort. Without pictures, it's tough to say which you were seeing. To me, cold break looks like egg drop soup, and hop matter looks more like sludge.

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Old 03-17-2011, 01:37 AM   #4
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heres a picture:

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Old 03-17-2011, 01:40 AM   #5
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The white gunk floating in the lower half of your carboys is cold break.

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Old 03-17-2011, 12:35 PM   #6
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Are you sure that's all cold break? My guess would have been mostly hot break. AFAIK, getting a good cold break isn't that easy, it doesn't form much unless you chill fast and low, and cold break flocs are much smaller than hot break flocs. I thought 'egg drop soup' was hot break. There's a good bit of break in those fermenters and it looks like fairly big flocs but it's bit blurry.

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Old 03-17-2011, 12:42 PM   #7
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In my experience hot break is smaller, and not big goobers of globs. (Technical terms!)

Maybe it's because I use whirlfloc in the kettle, but the hot break seems fine and thin and hard to filter while the cold break looks just like that. My cold break ends up in the fermenter since I have a CFC and sometimes the hot break is hard to filter out even though I recirculate. Often the cold break is big globs like that, which compact down into the trub soon.

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Old 03-17-2011, 12:45 PM   #8
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Quote:
Originally Posted by SpanishCastleAle View Post
Are you sure that's all cold break? My guess would have been mostly hot break. AFAIK, getting a good cold break isn't that easy, it doesn't form much unless you chill fast and low, and cold break flocs are much smaller than hot break flocs. I thought 'egg drop soup' was hot break. There's a good bit of break in those fermenters and it looks like fairly big flocs but it's bit blurry.
Indeed. I get a decent amount of cold break with a standard whirlpool chiller, and it looks pretty much the same as hot break (though, like you say, often with smaller loogies). The stuff floating in his carboy is definitely protein break. Whether it is hot break or cold break is tough to say without watching it form.
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Old 03-17-2011, 12:56 PM   #9
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Quote:
Originally Posted by Yooper View Post
In my experience hot break is smaller, and not big goobers of globs. (Technical terms!)

Maybe it's because I use whirlfloc in the kettle, but the hot break seems fine and thin and hard to filter while the cold break looks just like that. My cold break ends up in the fermenter since I have a CFC and sometimes the hot break is hard to filter out even though I recirculate. Often the cold break is big globs like that, which compact down into the trub soon.
From what I've read, the small/cloudy stuff is the cold break and the big goobers are hot break. But I really don't know, this question has come up before and lots of folks said it was cold break but based on what I've read it seems to 'fit' the definition of hot break better.

FWIW, here's a few links to where I read this stuff:
How to Remove Trub (BYO)
Cold Break (BT)
Hot Break (BT)
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Old 03-17-2011, 01:10 PM   #10
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Wierd, almost the exact thread.http://www.homebrewtalk.com/f128/col...estion-232994/

I top off with ice to cool my beer. I do NOTHING to clear it. My beers are seriously clear (after the the first pint or 2). I am not bragging, I am befuddled.

Could the ice do something that clears?

I do not filter, I do sparge and vorlauf exhaustively, I leave hop residue and trub in.

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