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Old 06-21-2009, 11:31 PM   #1
Nov 2008
Posts: 104

So tommorow is my first 10 Gallon batch, and I have chosen an Oatmeal stout.

I am used to tossing in Irish Moss to coagulate some of the proteins out of the beer, but then was reading earlier today in one of my brew books that Oatmeal Stout is so smooth due to proteins from the oatmeal. Which all leads to my question:

Will using Irish Moss negate some of the smoothness the oatmeal in my stout creates? Should I not use moss for this brew??

Thanks guys!

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Old 06-22-2009, 02:33 AM   #2
davesrose's Avatar
Mar 2008
Atlanta, GA
Posts: 967
Liked 10 Times on 7 Posts

I've never heard of Irish Moss negating the effects of oatmeal: Irish moss helps keep floculants coagulated and keeps your beer from tasting yeasty and looking cloudy. So if anything, I think Irish moss helps mantain the dry notes that oatmeal brings to a stout. Proteins aren't totally settled out: otherwise, Irish moss would be considered a step for eliminating chill haze...and the beer wouldn't be able to have a head.
On Tap: Barleywine, Coffee Oatmeal Imperial Stout (big big beer)
Conditioning:Baltic Porter
Fermenting: Double Simcoe IPA
On the Bench: Racer 5 IPA

"One of the first things early caveman did, when he crawled out of the mudd, was to make beer. And cavemen everywhere are still making beer...and drinking beer." - Jean Sheperd

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Old 06-22-2009, 08:03 AM   #3
Killer_Robot's Avatar
Apr 2009
Rochester, NY
Posts: 215
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There's little need to use fining agents on a stout anyway: if you can't see light through a glass of it, who knows how cloudy it is?

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Old 06-22-2009, 08:58 PM   #4
IXVolt's Avatar
Apr 2009
Southern Oregon
Posts: 1,715
Liked 79 Times on 54 Posts

I used IR in my last oatmeal stout and I've been drinking it for about 2 weeks now and it's like drinking silk. I don't think it affected adversely at all!

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Old 06-22-2009, 09:54 PM   #5
Droot's Avatar
Jun 2009
West By golly Shelby NY
Posts: 310
Liked 1 Times on 1 Posts

Didn't use it in my last oatmeal stout and boy is it good!


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Old 06-23-2009, 02:58 AM   #6
Nov 2008
Posts: 104

For the record, I did use it in my brew today! Will try and report back with info!

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