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Author Topic: Irish Moss Question  (Read 9547 times)

Offline flbrewer

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Re: Irish Moss Question
« Reply #15 on: March 19, 2014, 08:08:20 am »
Thanks, good read. Granted, I did use a massive amount of Irish moss but my two fermenters looked like a science experiment last night. Even when used at appropriate amounts, do you still see this clumping? I thought the idea was for the clumping to take place in the kettle and remain behind.


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Offline erockrph

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Re: Irish Moss Question
« Reply #16 on: March 19, 2014, 08:30:37 am »
Yep, you will see a lot of clumping with Whirlfloc/irish moss. I actually skip it in some 1-gallon batches because the trub gets so fluffy that I generally net 1 less beer per batch. It totally looks like the swamp thing on the bottom, and it's perfectly normal. It doesn't all stay in the kettle because the cold break continues to drop out for a while.

Here's a topic from a while back regarding the whirlfloc trub issue:
https://www.homebrewersassociation.org/forum/index.php?topic=13403.0

Personally, I doubt you'll see much impact on flavor. I just kind of eyeball it for my small batches and likely use at least double the recommended dosage. I've never noticed an impact on flavor. Just ride it out - I'm pretty sure you'll be fine.
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Offline morticaixavier

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Re: Irish Moss Question
« Reply #17 on: March 19, 2014, 08:47:25 am »
I use tons of irish moss and have never noticed any flavor. I often use double the recommended dose especially on not particularly hoppy beers that I want to be really bright.

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Offline denny

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Re: Irish Moss Question
« Reply #18 on: March 19, 2014, 09:42:53 am »
File this under "probably not worth asking"....so I threw about 3/4 of a tablet of Irish Moss into a 2 gallon batch. The instructions say one tablet for 5-10 gallons. Is this a problem?

Edit...it was Whirlfloc...same thing as Irish Moss?

Bad info.  According to the manufacturer, one tablet is good for 12 gal.  The distributors write their own instructions when they repackage it and they're almost always wrong.  Based on my own experience I'd say the flavor impact will be pretty much nothing.  You may find that the body of the beer is a bit thin and there's a lack of head.
« Last Edit: March 19, 2014, 09:47:09 am by denny »
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Offline denny

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Re: Irish Moss Question
« Reply #19 on: March 19, 2014, 09:45:25 am »
Naw, I'm pretty sure the taste will be off.  At least it was in my beers.  I used Irish Moss for a few batches and I was measuring it out.  I had a taste in the beer I was first calling a 'green' taste.  Finally came to the realization that it tasted like what I would assume chlorophyl tastes like.  When I checked my notes, I found the only new addition was the Irish Moss.

No offense, but I find that kinda hard to believe based on my own usage for many years and many batches. Either you're extraordinarily sensitive to IM, or you were detecting something else and blaming it on the IM. 
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Offline 69franx

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Re: Irish Moss Question
« Reply #20 on: March 19, 2014, 10:48:53 am »
Kind of back to the original question, what is the proper dosage and timing for IM? The default in beersmith seems to always want me to add in primary(?) but I know it should be in the boil. Last 10 minutes I am finding through this thread, I think. But for a 5-5.5 gallon batch how much should I be using?
 When this bottle is gone, I will be finding whirfloc for simplicity sake. But have only used my bottle of IM twice. Mt second batch with it sounds like everyone's experience: huge amount of fluffy trub left in my BK, and I just siphoned above it. I also lost a lot more volume than I expected, ending with 4.5 in the fermenter, then topped off to my goal of 5.5. So it seems the amount of trub was to be expected, and now I know to adjust my volumes in beersmith
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Offline morticaixavier

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Re: Irish Moss Question
« Reply #21 on: March 19, 2014, 11:36:44 am »
Kind of back to the original question, what is the proper dosage and timing for IM? The default in beersmith seems to always want me to add in primary(?) but I know it should be in the boil. Last 10 minutes I am finding through this thread, I think. But for a 5-5.5 gallon batch how much should I be using?
 When this bottle is gone, I will be finding whirfloc for simplicity sake. But have only used my bottle of IM twice. Mt second batch with it sounds like everyone's experience: huge amount of fluffy trub left in my BK, and I just siphoned above it. I also lost a lot more volume than I expected, ending with 4.5 in the fermenter, then topped off to my goal of 5.5. So it seems the amount of trub was to be expected, and now I know to adjust my volumes in beersmith

I am very scientific about it. I use exactly 1 palm full in an 11 gallon batch. If I remember the recommended dose is 1 tblsp for 5 gallons but I could be wrong.
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Offline Wort-H.O.G.

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Re: Irish Moss Question
« Reply #22 on: March 19, 2014, 11:42:54 am »
im confused. is this irish moss or whirlfloc we are talking about. starts out as irish moss "tablets" (didnt know they existed). seems like a whole tablet of whirlfloc was used????

whirlfloc is a blend of Irish moss and purified carrageenan..but i think that slikely very different than a crap load of just irish moss being thrown in....IMO
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Offline Jimmy K

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Re: Irish Moss Question
« Reply #23 on: March 19, 2014, 11:45:19 am »
Kind of back to the original question, what is the proper dosage and timing for IM? The default in beersmith seems to always want me to add in primary(?) but I know it should be in the boil. Last 10 minutes I am finding through this thread, I think. But for a 5-5.5 gallon batch how much should I be using?
 When this bottle is gone, I will be finding whirfloc for simplicity sake. But have only used my bottle of IM twice. Mt second batch with it sounds like everyone's experience: huge amount of fluffy trub left in my BK, and I just siphoned above it. I also lost a lot more volume than I expected, ending with 4.5 in the fermenter, then topped off to my goal of 5.5. So it seems the amount of trub was to be expected, and now I know to adjust my volumes in beersmith

I am very scientific about it. I use exactly 1 palm full in an 11 gallon batch. If I remember the recommended dose is 1 tblsp for 5 gallons but I could be wrong.
LD Carlson says 1 teaspoon / 5 gallons added with 15 minutes left to boil. And my copy of Beersmith says to add it to the boil. Don't know why you're copy says different.
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Offline morticaixavier

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Re: Irish Moss Question
« Reply #24 on: March 19, 2014, 11:59:20 am »
Kind of back to the original question, what is the proper dosage and timing for IM? The default in beersmith seems to always want me to add in primary(?) but I know it should be in the boil. Last 10 minutes I am finding through this thread, I think. But for a 5-5.5 gallon batch how much should I be using?
 When this bottle is gone, I will be finding whirfloc for simplicity sake. But have only used my bottle of IM twice. Mt second batch with it sounds like everyone's experience: huge amount of fluffy trub left in my BK, and I just siphoned above it. I also lost a lot more volume than I expected, ending with 4.5 in the fermenter, then topped off to my goal of 5.5. So it seems the amount of trub was to be expected, and now I know to adjust my volumes in beersmith

I am very scientific about it. I use exactly 1 palm full in an 11 gallon batch. If I remember the recommended dose is 1 tblsp for 5 gallons but I could be wrong.
LD Carlson says 1 teaspoon / 5 gallons added with 15 minutes left to boil. And my copy of Beersmith says to add it to the boil. Don't know why you're copy says different.

okay, so apparently i use WAY WAY too much. still never noticed nor had a comment that there was any flavor from it.

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Offline morticaixavier

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Re: Irish Moss Question
« Reply #25 on: March 19, 2014, 12:00:20 pm »
im confused. is this irish moss or whirlfloc we are talking about. starts out as irish moss "tablets" (didnt know they existed). seems like a whole tablet of whirlfloc was used????

whirlfloc is a blend of Irish moss and purified carrageenan..but i think that slikely very different than a crap load of just irish moss being thrown in....IMO

I was under the impression that whirlfloc is just powdered irish moss and binders.
"Creativity is the residue of wasted time"
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Offline denny

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Re: Irish Moss Question
« Reply #26 on: March 19, 2014, 12:02:53 pm »
Kind of back to the original question, what is the proper dosage and timing for IM? The default in beersmith seems to always want me to add in primary(?) but I know it should be in the boil. Last 10 minutes I am finding through this thread, I think. But for a 5-5.5 gallon batch how much should I be using?
 When this bottle is gone, I will be finding whirfloc for simplicity sake. But have only used my bottle of IM twice. Mt second batch with it sounds like everyone's experience: huge amount of fluffy trub left in my BK, and I just siphoned above it. I also lost a lot more volume than I expected, ending with 4.5 in the fermenter, then topped off to my goal of 5.5. So it seems the amount of trub was to be expected, and now I know to adjust my volumes in beersmith

Many years ago, Al Korzonas did some testing and found that for extract 1/4 tsp. was a good dosage.  He recommended 1 tsp. for AG.  For best results, rehydrate in a bit of water for 15-60 min,. before using.

Are you sure your volume loss wasn't due to hop absorption or something else?  It's hard to imagine IM causing a 1 gal. loss.  I've never seen it happen at least.
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Offline denny

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Re: Irish Moss Question
« Reply #27 on: March 19, 2014, 12:03:27 pm »
im confused. is this irish moss or whirlfloc we are talking about. starts out as irish moss "tablets" (didnt know they existed). seems like a whole tablet of whirlfloc was used????

whirlfloc is a blend of Irish moss and purified carrageenan..but i think that slikely very different than a crap load of just irish moss being thrown in....IMO

I was under the impression that whirlfloc is just powdered irish moss and binders.

You are correct.
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Offline Wort-H.O.G.

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Re: Irish Moss Question
« Reply #28 on: March 19, 2014, 12:04:22 pm »
im confused. is this irish moss or whirlfloc we are talking about. starts out as irish moss "tablets" (didnt know they existed). seems like a whole tablet of whirlfloc was used????

whirlfloc is a blend of Irish moss and purified carrageenan..but i think that slikely very different than a crap load of just irish moss being thrown in....IMO

I was under the impression that whirlfloc is just powdered irish moss and binders.

yep, right. just clarifying you dont throw a "handful of whirlfloc" or a "tablet of irsh moss" (in average brewers lingo). that can be confusing to someone reading this later that is new.

i have no idea if a whole tablet tastes differently, but i've used more Irish moss by accident (pouring and it clumped and dumped more than i wanted) and cant say i tasted anyting different.
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Offline Jimmy K

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Re: Irish Moss Question
« Reply #29 on: March 19, 2014, 12:35:02 pm »
im confused. is this irish moss or whirlfloc we are talking about. starts out as irish moss "tablets" (didnt know they existed). seems like a whole tablet of whirlfloc was used? ???

whirlfloc is a blend of Irish moss and purified carrageenan..but i think that slikely very different than a crap load of just irish moss being thrown in....IMO

I was under the impression that whirlfloc is just powdered irish moss and binders.
Carrageenan is the active component of raw irish moss.
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