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What type of beer defect could cause this flavor?

Discussion in 'Beer Talk' started by beerinmaine, Jan 23, 2013.

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  1. beerinmaine

    beerinmaine Jun 20, 2009 Maine

    Over in the Night Stalker thread there's been a lot of talk of the beer being "infected", but the chief complaints have been a flavor of soy or teriyaki, which are not typical signs of infection as described, for example, here:

    So, in the abstract and assuming this is not a flavor the brewer desired, what type of defect could cause it?
  2. Horbar

    Horbar Feb 24, 2012 Rhode Island

    Oxidation or an unsanitary bottle maybe.
  3. LeRose

    LeRose Nov 24, 2011 Massachusetts

    Is Night Stalker bottle conditioned?
  4. kell50

    kell50 Jul 25, 2007 North Carolina

    "Soy sauce" off flavors can sometimes occur when yeast has died (or is decomposing) in the bottle and the beer is basically dying.
  5. jzeilinger

    jzeilinger Dec 4, 2004 Pennsylvania
    Subscriber Beer Trader

    Tried Nightstalker a few years ago and it tasted like PVC on the back end, won't be any time soon that I'll buy it again.
  6. jklinck

    jklinck Jul 23, 2007 Washington

    I know from homebrewing that leaving beer on the main yeast cake can cause autolysis. But can it becaused by the thin layer that will be present from bottle conditioning?
  7. vacax

    vacax Jun 3, 2008 California
    Beer Trader

    Could be the fading flavor of the dry hopping is seen as an off-flavor when combined with the roastiness. Typically people don't age beers with lots of dry hopping.
    ShogoKawada likes this.
  8. MikeB20

    MikeB20 Aug 30, 2009 Delaware

    That's enough to keep me from being excited. :D
  9. leedorham

    leedorham Apr 27, 2006 Washington

    Autolysed yeast produces glutamates and amino acids, which are the type of compounds that give soy sauce its savory character. So soy sauce character in beer is largely attributed to yeast autolysis.
    YogiBeer likes this.
  10. danoeltico

    danoeltico Jul 14, 2011 North Carolina
    Beer Trader

    My wife thinks anything BBA tases like soy sauce
    DevilsCups likes this.
  11. jzeilinger

    jzeilinger Dec 4, 2004 Pennsylvania
    Subscriber Beer Trader

    I'm probably due to try it again, maybe it was the batch?
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