Irish Moss to clarify? - Home Brew Forums
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Old 12-01-2009, 11:35 AM   #1
Mike35673
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Nov 2009
Sterling Heights, MI
Posts: 26


Ok so..Right now I am brewing two dark extract batches and am not terribly concerned about clarity but I plan to get an american pale ale going next and was wondering if soemone could explain how the irish moss works? Id like this batch to be as clear as possible. I will rack to a secondary as well. When do you use the moss? Is there any taste considerations?

 
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Old 12-01-2009, 12:08 PM   #2

It's easy - add around a teaspoon of Irish moss in the last 5 minutes of your boil. It has no impact on flavor.

 
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Old 12-01-2009, 12:27 PM   #3
Laughing_Gnome_Invisible
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Jan 2008
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Irish moss works, but whirlfloc works better If you have the time to get your hands on some, I would. Whirlfloc is Irish Moss on steroids.

 
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Old 12-01-2009, 12:29 PM   #4
chrisknight
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Oct 2007
Delaware, OH
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Quote:
Originally Posted by Mike35673 View Post
I plan to get an american pale ale going next and was wondering if soemone could explain how the irish moss works?
Irish moss is a fining agent. Fining agents all work by making the smaller molecules aggregate into larger particles so they settle out of solution.
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Old 12-01-2009, 12:35 PM   #5
Edcculus
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Jun 2007
Greenville, SC
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Quote:
Originally Posted by chrisknight View Post
Irish moss is a fining agent. Fining agents all work by making the smaller molecules aggregate into larger particles so they settle out of solution.
To be more exact, it is a kettle coagulant. You can only use it in the boil. If you want a very clear beer, I suggest Irish Moss or Whirlfloc in the boil, then crash cooling and adding gelatin. That always makes a brilliantly clear beer for me.

 
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