Averagely Perfect NorthEast IPA - Poll #29 - IBU Resolution

Discussion in 'Homebrewing' started by VikeMan, Jul 4, 2016.

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Resolve the difference between the original 61 IBU selection and the currently computed 63 IBUs.

Poll closed Jul 6, 2016.

  1. Change the IBU target to 63.

    36 vote(s)
    81.8%

  2. Reduce the 10 minute addition to shave off 2 IBUs.

    5 vote(s)
    11.4%

  3. Reduce the Flameout/Whirlpool/Hopstand addition to shave off 2 IBUs.

    1 vote(s)
    2.3%

  4. Reduce the AA% estimates for hops. Brewers will have to deal with differences year to year anyway.

    2 vote(s)
    4.5%
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  1. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    -> Poll #28 <- determined the Fermentation Dry Hop quantities.

    This poll will determine what we'll do (if anything) about the currently computed IBUs being a bit higher than the IBU target. The original IBU target was 61 IBUs (extended Tinseth, including post boil hop contributions). But after the Flameout/Whirlpool/Hopstand qty voting, the estimate is 63 IBUs.

    Straight plurality wins.

    For those looking ahead, the next poll will determine the specific hops varieties for the traditional dry hop addition.

    This poll will be open for 48 hours.

    If you have issues with or suggestions for methodologies used in this project, please send them via beermail. Let's keep the threads themselves on topic to the question at hand and not about how you would have asked the question differently. Lobbying for votes and intelligent discussion of each choice's relative merits is encouraged.

    The Averagely Perfect NorthEast IPA Recipe so far...

    5 Gallons
    ABV: 6.5%
    OG: 1.062
    FG: 1.012
    Mash Temperature (recommended): 152F
    Mash Length (recommended): 60 minutes
    IBUs: 61 (extended Tinseth) <Currently computing about 63 for pellet hops...will resolve>

    Grain Bill:
    North American 2-Row Brewer's Malt (77%)
    Wheat Malt (10%)
    Flaked Oats (10%)
    Honey Malt (3%)

    Hop Schedule:
    10 Minutes: 1 ounce Citra (12.7% AA), 1 ounce Galaxy (15% AA)
    Flameout/Whirlpool/Hopstand: 1.25 ounces Citra (12.7% AA), 1.5 ounces Galaxy (15% AA), 1.25 ounces Mosaic (12% AA) (modeled at 170F for 15 minutes)
    Fermentation Dry Hop @ 70% complete fermentation (SG @ ~1.027): 1 ounce Citra, 1.5 ounces Galaxy, and 1 ounce Mosaic
    Traditional Dry Hop (Citra, Galaxy, and/or Mosaic, Qtys TBD)

    Yeast Strain: Wyeast 1318
     
    #1 VikeMan, Jul 4, 2016
  2. PortLargo

    PortLargo Pooh-Bah (1,831) Oct 19, 2012 Florida
    Pooh-Bah

    63 vs 61 IBUs, or 3% too much bitterness, eh? For analytical purposes do you mind posting the IBU contribution from each hop at the 10/0 steps?

    Right now I'm leaning toward reducing the estimates but I could be talked into a write in vote for a modification to the formula:
    [​IMG]
    It might be easier to reduce the "7490" by 3% as most people hate arbitrary constants. But I'll give Brewcipher a chance to speak before making a rash decision . . .
     
    #2 PortLargo, Jul 4, 2016
  3. DrMindbender

    DrMindbender Initiate (0) Jul 13, 2014 South Carolina

    So the 60 minute addition has been dropped, correct? If we dont have to lose any IBUs to make way for that, I say upping the target to 63 will keep the recipe as its been voted on, while taking away the hassle of trying to squeeze in some sort of charge at 60. The difference between 63 and 61 is minor IMO any way.
     
    #3 DrMindbender, Jul 4, 2016
  4. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    [​IMG]
     
    #4 VikeMan, Jul 4, 2016
  5. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    Correct.
     
    #5 VikeMan, Jul 4, 2016
  6. SFACRKnight

    SFACRKnight Grand Pooh-Bah (3,348) Jan 20, 2012 Colorado
    Pooh-Bah Trader

    Y'all and your math....
     
    #6 SFACRKnight, Jul 5, 2016
  7. Naugled

    Naugled Pooh-Bah (1,944) Sep 25, 2007 New York
    Pooh-Bah

    bump
     
    #7 Naugled, Jul 6, 2016
  8. VikeMan

    VikeMan Grand Pooh-Bah (3,067) Jul 12, 2009 Pennsylvania
    Pooh-Bah

    63 IBUs it is. Hey, it comes out to 63 IBUs!
     
    #8 VikeMan, Jul 6, 2016
    kcq101 and jbakajust1 like this.
  9. wspscott

    wspscott Pooh-Bah (1,958) May 25, 2006 Kentucky
    Pooh-Bah

    #9 wspscott, Jul 7, 2016
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