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Old 05-10-2013, 03:40 PM   #21
Guidry
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The taste I get is a bitter aftertaste.....Maybe 3 to 4 seconds after swallowing. If you've ever eaten boiled shrimp and accidentally gotten a good taste of the shell, thats what I'm getting.

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Old 05-10-2013, 05:12 PM   #22
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The taste I get is a bitter aftertaste.....Maybe 3 to 4 seconds after swallowing. If you've ever eaten boiled shrimp and accidentally gotten a good taste of the shell, thats what I'm getting.
That doesn't sound like tannin.
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Old 05-13-2013, 05:40 PM   #23
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Cos, are other people noticing the same flavor that your are? Perhaps you are just being too critical of your beer. Or maybe you are super sensitive to tannins (assuming that's what you are tasting).
I'm the only one who has tried these particular beers. Others I have maded in the past did not have this issue. I may be overly sensitive to it, but I can definately tell it's there.
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Old 05-13-2013, 05:50 PM   #24
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Does anyone else wonder if it's really tannins when it's described as a tannin "flavor"? Tannins are a mouthfeel, not a flavor.
Denny, not sure if it is a mouthfeel or a flavor, but it's definately not bitterness. I am picking it up in my Helles and less so in my IPA. I think the bitterness in the IPA might be masking it a little but it still comes through. I'm not sure exactly what it is and I'm open to suggestions. Tannins are described as what you get when sucking on a tea bag. That's about the closest description I could come up with, but much less intense than an actual tea bag. The beers also remain hazy for a couple months. Not sure if that is related.
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Old 05-13-2013, 05:55 PM   #25
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Denny has a good point. Assertive bittering can be misconstrued as tannin on an inexperienced palate. Polyphenols from a strong hopping regime can also produce a tannin-like flavor and mouthfeel. There are husk-derived and hop-derived components that can have some similarity in finished beer
It's definately not hop related. I get it in my Helles lager recipe from Jamil's BCS book. To me, the most likely explaination is the one you had on RO sparge water and osmotic pressure releasing tannins. We'll soon see if that's it.
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Old 05-13-2013, 06:28 PM   #26
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It's definately not hop related. I get it in my Helles lager recipe from Jamil's BCS book.
It's not just what kind of hops you use, but what kind of hops you use. What I mean is that old, stale, oxidized, and/or freezer-burned hops can produce numerous off flavors. For instance, alpha acids are diminished while the astringent, sour aspects of beta acids are intensified as hops oxidize. Improper handling and storage of hops can very easily create and/or intensify the problem you're describing.
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Old 05-13-2013, 06:46 PM   #27
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Denny, not sure if it is a mouthfeel or a flavor, but it's definately not bitterness. I am picking it up in my Helles and less so in my IPA. I think the bitterness in the IPA might be masking it a little but it still comes through. I'm not sure exactly what it is and I'm open to suggestions. Tannins are described as what you get when sucking on a tea bag. That's about the closest description I could come up with, but much less intense than an actual tea bag. The beers also remain hazy for a couple months. Not sure if that is related.
Are you getting good hot and cold breaks?
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Old 05-14-2013, 04:23 PM   #28
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Hops are pellets from Yakima Valley hops and Northern Brewer. All seem very fresh and stored in vacume sealed bags in freezer. Great hot and cold break. left about a gallon of break material in kettle and used only clear wort after 40 minutes of settling.

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Old 05-14-2013, 07:39 PM   #29
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The taste I get is a bitter aftertaste.....Maybe 3 to 4 seconds after swallowing. If you've ever eaten boiled shrimp and accidentally gotten a good taste of the shell, thats what I'm getting.
to me this description fits very good with the use of RO water with low level of salt adiction, or cl/SO4 ratio too hight with very soft water
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Old 05-14-2013, 09:59 PM   #30
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I have very soft tap water. Some say it appears to be softened, possibly by municipality. Anyway, I have tried dilution and additions of gypsum and CaCl2 per Bru n Water. Still get some off flavor. Next step, all RO with additions.

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