Author Topic: astringent off flavor  (Read 1688 times)

Offline Indy574

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astringent off flavor
« on: January 03, 2016, 05:07:10 PM »
I'm getting some astringent off flavor in my beers.  Here is a pic of my millings.


-I think it looks ok, maybe a little too milled? I use BeerSmith brewing software along with a water adjusting software.
-I haven't physically checked the pH, but will get some litmus paper and check it next time.
-I just switched to all RO water, and the first batch I brewed with it came out bad, not associated with my astringency issue. (yeast issue)
-I batch sparge.
-The last beer was a Black IPA, which maybe I should add the dark grain later in the mash?

I'm sure I'm leaving something out but this is getting frustrating.
« Last Edit: January 03, 2016, 05:23:08 PM by Indy574 »

Offline Stevie

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Re: astringent off flavor
« Reply #1 on: January 03, 2016, 05:09:57 PM »
Did you add salts back to the RO water?

Link is busted.

Offline Indy574

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Re: astringent off flavor
« Reply #2 on: January 03, 2016, 05:12:46 PM »
Yes I did.

Offline denny

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Re: astringent off flavor
« Reply #3 on: January 03, 2016, 07:49:56 PM »
How sure are you it's astringency?  FWIW, astringency is not a flavor.
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Offline HoosierBrew

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Re: astringent off flavor
« Reply #4 on: January 03, 2016, 10:08:32 PM »
Has it been only dark beers ?  You often have to raise pH with RO water ( no alkalinity) to avoid getting acrid, harsh character from dark malts in dark beers. Now's as good a time as any to download Brunwater and start getting a handle on pH. We can help - it's not as bad as it seems.
Jon H.

Offline Slade7077

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Re: astringent off flavor
« Reply #5 on: January 03, 2016, 10:47:56 PM »
Can I use Bru n Water if I don't know my Bicarbonate count?

Offline HoosierBrew

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Re: astringent off flavor
« Reply #6 on: January 03, 2016, 10:53:35 PM »
If you plan to use your tap water you'll need to know the water content, to be able to accurately enter the values into Brunwater. People often send off a sample to Ward Labs to get a reliable assessment. Lots of brewers here use all RO (reverse osmosis) water as a base, then add brewing salts and acid to hit target pH. I use all RO water.
Jon H.

Offline MDixon

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Re: astringent off flavor
« Reply #7 on: January 03, 2016, 11:13:50 PM »
How sure are you it's astringency?  FWIW, astringency is not a flavor.

This^^^

If you can taste it, it isn't astringency!
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Offline Slade7077

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Re: astringent off flavor
« Reply #8 on: January 03, 2016, 11:21:43 PM »
Here is the info I have

Magnesium Hardness MG 11 ppm
Chloride as NaCl 19 ppm
Sulfate SO4 LO
Calcium as CaCO3 37 ppm
Total Hardness Low (as CaCO3) THL 48 ppm
ph 6.7

Can someone help me?  I live just north of Memphis,TN.  We have great drinking water.

Offline Indy574

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Re: astringent off flavor
« Reply #9 on: January 04, 2016, 12:13:06 AM »
Not just dark beers, and I would say the level of astringency changes per brew. I realize it's not a flavor but it's that bitter after taste that doesn't belong in my brew.

Offline MDixon

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Re: astringent off flavor
« Reply #10 on: January 04, 2016, 12:34:58 AM »
Then it isn't astringency. Astringency is a sensation. Sounds like a flavor issue.
It's not a popularity contest, it's beer!

Offline reverseapachemaster

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Re: astringent off flavor
« Reply #11 on: January 04, 2016, 04:39:04 PM »
What salt additions are you making to the RO water? If it varies between batches then it's likely not the milling unless you change mill settings or use different mills for each batch. It's far more likely that you are not adjusting the water properly and getting varied ph between batches.
Heck yeah I blog about homebrewing: Brain Sparging on Brewing

Offline The Beerery

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Re: astringent off flavor
« Reply #12 on: January 04, 2016, 05:03:07 PM »
BIAB?
Herr, wirf Hirn vom Himmel!
(Oder Steine, Hauptsache er trifft.)
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Offline denny

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Re: astringent off flavor
« Reply #13 on: January 04, 2016, 05:03:44 PM »
How sure are you it's astringency?  FWIW, astringency is not a flavor.

This^^^

If you can taste it, it isn't astringency!

So many people either don't know this or ignore it, huh?
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Offline denny

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Re: astringent off flavor
« Reply #14 on: January 04, 2016, 05:04:37 PM »
Then it isn't astringency. Astringency is a sensation. Sounds like a flavor issue.


THIS^^^^^


Life begins at 60.....1.060, that is!

www.dennybrew.com

The best, sharpest, funniest, weirdest and most knowledgable minds in home brewing contribute on the AHA forum. - Alewyfe

"The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts." - Bertrand Russell