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Old 08-09-2009, 02:35 PM   #1
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Default Irish moss?

I have not used irish moss yet, how much would you need to use for a five gallon batch, when do you put it in the wort, and does it really make a difference?

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Old 08-09-2009, 02:36 PM   #2
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1 tsp per 5 gallon batch, put it in the boil with 15 minutes remaining, and yes, it does make a difference.

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Old 08-09-2009, 04:00 PM   #3
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I agree with everything except if it makes a difference. Maybe for lighter beers or if you are anxious to drink your brew and want to open them as soon as possible or if you are using a low flocculating yeast.

I tend to do 2 weeks primary, 2 weeks secondary, and 4 weeks in the bottle. I also tend to use moderate to high flocculating yeasts. By that time I get around to opening a bottle, it is clear.

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Old 08-09-2009, 04:14 PM   #4
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I've used it and forgotten to use it, and never noticed much difference (but never really tried to discern a difference either). Since it theoretically helps make your beer clearer, I keep using it.

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Old 08-09-2009, 04:21 PM   #5
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I used to use it all the time.But I have since stopped(ran out),and haven't noticed a difference in the clarity of my beer.I don't use any fining agents and they all come out clear.It just takes time.That being said LOTS of people do use them.So if you choose to then follow the directions on the package

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Old 08-09-2009, 04:33 PM   #6
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I always use it even knowing that usually my beer will clear with time. I look at it more like insurance, you don't need it until you really need it.
It's cheap and doesn't take extra time or effort to add it to the pot.

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Old 08-09-2009, 04:53 PM   #7
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I have used it for the last 4 batches I have made and it seems to really clear the beer up, but then again I do not secondary and I usually break into my beer too early, I guess that is something I need to work on!

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Old 08-09-2009, 09:01 PM   #8
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I will edit my previous post.

I just got back from the LBHS. I'm one of those guys who will always use hop flowers over pellets. I went in with my list of three hops and four alternates in case I couldn't find those in flowers. Turned out none of them were available in flowers. Turned out if I wanted anything other than Mt. Hood, they weren't available in flowers.

Did the hop crisis make it impossible to find flowers any more? I mean really.

So tonight, I'll add irish moss to this brew because of the pellets.

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Old 08-09-2009, 09:09 PM   #9
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One of the pros can correct me if I get this wrong:


Irish Moss is positively charged (ion). This assists in taking some of the smaller proteins out of solution, not to help the yeast drop.

I guess it's addition would depend on the style of beer that you want to acheive.

I was goofing one night brewing(drunk?), and I added some to an ESB recipe. The result was a fine beer, but it was missing some mouthfeel, due to dragging some of the "goods" out of the brew. Definitely not the style I was going for.

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Old 08-10-2009, 04:12 AM   #10
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I looked it up, you have it backwards. Its negatively charged and attaches onto the positively charged proteins, like those that cause chill haze.

But any thing that qualifies as a flocculant will cause smaller particles to bind together to create larger particles and cause them to settle out of solution.

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