Irish Moss

jklotz · 10-25-2008, 11:38 AM

I've been reading "How to Brew" by Palmer. Overall, a very good read. I do have a question though. He states that Irish Moss is not a good clarifying agent for extract brews. I've been using it, and still getting a little chill haze. Do you guys use it in your extract recipes? Is it something I should not do?

Thanks!

**Yooper** · 10-25-2008, 01:10 PM

No, you can use it. I like Whirlfloc better, but it's ok to use Irish moss. He probably says it's not that effective in extract batches because of the way it works. In AG brewing, you get a "hot break" and it's great to use IM to help coagulate those proteins. In extract, that's already been done for you. So, the IM can't hurt, will probably help some, but it'll be more effective in AG batches.

I am guessing that one of the reasons you're having chill haze is because you're not getting a fast enough "cold break"- where you chill the wort to under 70 degrees in 15 minutes or so. That break material is also composed of coagulated proteins that would otherwise be apparent in the wort.

**Nurmey** · 10-25-2008, 01:20 PM

I've used it in extracts for a couple years and it's one little thing I disagree with Palmer about. Most of my extract batches I got some sort of hot break. Maybe not as big as my AG batches but there none the less. I've always had crystal clear beers with very little sediment in my bottles. To answer your question, IMO, use it!

Ghostface · 10-26-2008, 07:23 AM

I agree with the above post as well. My first 6 or 7 batches I did not use IM and they were pretty clear but not as clear when I use it. For no more than it cost and for what little added step I say use it...

TeleTwanger · 10-26-2008, 03:55 PM

Irish Moss does help clear extract beers but I think AG needs it more or that it works better with AG but I'd still use it for extract.

**Laughing_Gnome_Invisible** · 10-26-2008, 04:01 PM

I've used Irish moss plenty in extracts, I havn't found it ever worked as well as the gelatin that I used in my last batch which I've just finished bottling. For me, at least, gelatin has cleared the beer far more effectively that Irish moss in my extracts.

Col224 · 10-28-2008, 10:00 PM

gelatin? like jello...but in your beer?

**schweaty** · 10-28-2008, 11:51 PM

Quote:

Originally Posted by Col224

gelatin? like jello...but in your beer?

I know, sounds crazy right? But a lot of people around here will swear by it. Just make sure its colorless/flavorless I guess

homebrewer_99 · 10-29-2008, 01:58 PM

I use IM all the time and gelatin when I need to...

Tenchiro · 10-29-2008, 03:01 PM

I have seen a difference in using Irish Moss with my extract beers, although it is not a huge change. Given time they will all settle out, IM just seems to make that happen a bit quicker.

It is cheap and even a small bag seems to last many batches, no reason not to use it.