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Irish Moss Flakes

Irish Moss Flakes

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Irish moss is a specific type of algae that is used as a thickener in a variety of products. In beer making, Irish moss is added during the last 15 minutes of the boil, to help coagulate and settle out proteins. It improves formation and compaction of the hot-break, the gelatinous mass that forms after boiling and during cooling. Some users recommend prior rehydration in water, or a full hour boil with Irish moss, but common usage is 15 minutes in the boil.

Usage: 1 tsp. per 5 gallons
Chemical name: Chondrus crispus

Community Q&A

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I ran out
Joseph L W on Mar 24, 2020
clarify beer
Patrick R on Feb 29, 2020
I ran out
Joseph L W on Mar 24, 2020
Tom e on Mar 3, 2020
clarify beer
Patrick R on Feb 29, 2020
Last brew I ended up with a lot of solids that didn't settle out.
Valued C on Feb 29, 2020
backup classifier; just in case...or if we are trying to go more traditional
David M on Feb 25, 2020
Required by recipe
Tim O on Feb 11, 2020
Great fining agent which is easy to use.
Larry B on Feb 3, 2020
make stuff settle a bit
Jered P on Jan 25, 2020
to clarify beer
Michael S on Jan 18, 2020
always use it on light colour beer prefer the natural stuff
Valued C on Dec 19, 2019
Nicolas R on Dec 9, 2019
steve m on Nov 23, 2019
clearer beer
Brad W on Nov 7, 2019
Harry T on Nov 5, 2019
Clears beer very well
Nick Wright on Nov 2, 2019
Because Irish Moss is awesome
Daniel M on Oct 31, 2019
Want a nice clean, crisp beer.
Manuel C on Aug 30, 2019
To help clear my beer.
Haley H on Aug 28, 2019
Dogfish head punkin ale clone receipe
Michael R on Aug 28, 2019
Steven M on Jul 29, 2019
Love using small amounts of Irish moss to help with clearing up my beer
Jordan B on Apr 29, 2019
Gotta clear the beer
Kevin C on Apr 25, 2019
clean beer
Marvin O on Mar 2, 2019
ran out
Jason A on Feb 25, 2019
works great to speed up clairification of the beer
Aryan M on Feb 18, 2019
Want to make a german pilsner
Fernando M on Jan 29, 2019
always use it at end of boil
Michael S on Jan 25, 2019
almost out.
John M on Jan 24, 2019
A.M. H on Jan 15, 2019
Clear beer is good beer.
Michael Hoccom on Dec 5, 2018
regular use
Kevin Conroy on Dec 3, 2018
In my brewing recipe.
Brett H on Nov 17, 2018
Trying it out
Ralph Sprandel on Sep 5, 2018
clearer beer
Garrett R. M on Aug 9, 2018
Value for Quantity
Robert W on Aug 3, 2018
Marshall S H on Jul 20, 2018
To clarify the beer
Joseph Kamenar on Jul 14, 2018
can brew without it
Tim Roscher on Jun 26, 2018
Because American Moss does not exist!
derek barrington on Jun 26, 2018
always been my preferred clarity agent
Andrew for K on Jun 13, 2018
Clarity every time!
Bum Brew on Jun 11, 2018
Running Low!
Allan S on Jun 5, 2018
Chuck B on May 11, 2018
Since I stopped using Irish Moss my beer has become a little too cloudy for my liking.
Nick Wright on Feb 27, 2018
I think it actually works better than whirlfloc
David R on Feb 15, 2018
Clear up my beer
Darrell W on Jan 22, 2018
Tom e on Mar 3, 2020
Last brew I ended up with a lot of solids that didn't settle out.
Valued C on Feb 29, 2020

5.0 / 5.0
1 Review
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1 Star
I like it a lot. I use it sometimes.
August 22, 2018
1 year ago