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Irish Red partial mash
  • C_BC_B
    Posts: 76,472
    I want to brew @ceannt 's Traditional Irish Red in a 10 gallon batch but I don't want to have to build my new MLT yet. So here is a bastard PM recipe that keeps my grain bill under 13 lbs to fit in my current 5 gallon MLT. I could actually fit 15 pounds I think if I mashed thick.

    Malt & Fermentables
    % LB OZ °L PPG
    52% 10 8 Golden Promise Mash 2° 32
    39% 7 14 Extra Light Dry Extract Late Boil 3° 44
    4% 0 14 Crystal 60L Mash 60° 34
    4% 0 12 Crystal 20L Mash 20° 34
    2% 0 6 Roasted Barley - 550L Mash 550° 34
    13lbs grain

    Specific Gravity
    1.065 OG
    15.9° Plato
    1.018 FG

    Hops
    Usage Time OZ AA » IBU
    boil 60 min 2 East Kent Goldings ~ pellet 5.8 » 20.6
    boil 5 min 1 Fuggles ~ pellet 4.3 » 1.5

    Bitterness
    22.2 IBU


    I'm new at recipe formulation. I can't really look at a grain bill and know what it should taste like. And I'm completely guessing at the extract sub for GP. What is the best sub for GP? Is there one really?

    Thoughts, tweaks, concerns appreciated.


    "On it. I hate software." ~Cpt Snarklepants
  • ceanntceannt
    Posts: 47,210
    Believe it or not I developed a partial mash version of mine...... I think it just used plain old light extract .... let me look at my notes ... and I will let you know monday morning
    In wine there is wisdom.
    In beer there is freedom.
    In water there is bacteria.
  • C_BC_B
    Posts: 76,472
    My concern is the what will be lost with extract over Golden Promise. Since it isn't a 100% sub, I suppose it might be ok. But I really just don't know anything about recipe formulation/adjustment.
    "On it. I hate software." ~Cpt Snarklepants
  • ceanntceannt
    Posts: 47,210 Accepted Answer
    Max out your mash tun with all the specialty grains ... and as much GP as will fit .... make up the difference with plain extract to get your O.G.
    In wine there is wisdom.
    In beer there is freedom.
    In water there is bacteria.
  • ceanntceannt
    Posts: 47,210
    Mash a couple degrees higher ... to make up for the greater attenuation of the extract
    In wine there is wisdom.
    In beer there is freedom.
    In water there is bacteria.
  • ceanntceannt
    Posts: 47,210
    Boil your first runnings .... do a 20 minute sparge rest .... you will loose a little flavor ... but if you follow the above ... and "squeeze" as much flavor as possible out of what you mash ... it will be good
    In wine there is wisdom.
    In beer there is freedom.
    In water there is bacteria.
  • ceanntceannt
    Posts: 47,210
    Oh.... add the extract late ... 15 minutes left in the boil
    In wine there is wisdom.
    In beer there is freedom.
    In water there is bacteria.
  • C_BC_B
    Posts: 76,472
    Boiling the first running.... Just bring to a boil and shut off or boil until I add the second and third runnings?

    "On it. I hate software." ~Cpt Snarklepants
  • ceanntceannt
    Posts: 47,210
    SeaBee said:

    Boiling the first running.... Just bring to a boil and shut off or boil until I add the second and third runnings?



    Just let it boil for 5 minutes or so ... and shut it off ... just enough to break
    In wine there is wisdom.
    In beer there is freedom.
    In water there is bacteria.
  • C_BC_B
    Posts: 76,472
    ceannt said:

    SeaBee said:

    Boiling the first running.... Just bring to a boil and shut off or boil until I add the second and third runnings?



    Just let it boil for 5 minutes or so ... and shut it off ... just enough to break

    Done and done.
    "On it. I hate software." ~Cpt Snarklepants
  • C_BC_B
    Posts: 76,472
    I'm going to try to plan this for my next off week. That would be 4 weeks from now. With that small of a mash I can still heat strike and sparge water on the stove this time. If @Lakewood would like to send me components of this recipe instead of a complete kit this time, I'm fine with that. My brew days don't come very often.
    "On it. I hate software." ~Cpt Snarklepants
  • C_BC_B
    Posts: 76,472
    Whatever yup have on hand you'd like to get rid of.
    "On it. I hate software." ~Cpt Snarklepants
  • ThymThym
    Posts: 100,741
    I'll pull some stuff together for you and send it your way next week.
    The only thing between me and a train wreck is blind luck..... - Kenny
  • C_BC_B
    Posts: 76,472
    Eff it, I'm going to try to brew Sunday...
    "On it. I hate software." ~Cpt Snarklepants
  • C_BC_B
    Posts: 76,472
    $65 isn't bad for a 10 gallon batch in this case I don't think. AG would be better. And bulk purchased grain better yet. But still. I didn't notice the box till I was half way home...
    IMAG0672.jpg
    1440 x 2560 - 433K
    "On it. I hate software." ~Cpt Snarklepants
  • FuzzyFuzzy
    Posts: 46,024
    woohoo, brewing!
    "Oh, you were serious? I was drunk."-C_B
  • jlwjlw
    Posts: 16,410
    fwiw his IRA is freaking incredible.
  • ThymThym
    Posts: 100,741
    Cool, so the lhbs wasn't too bad? Good news there
    The only thing between me and a train wreck is blind luck..... - Kenny
  • C_BC_B
    Posts: 76,472
    Lakewood said:

    Cool, so the lhbs wasn't too bad? Good news there


    The guy is a Whatevs, but the prices aren't terrible and he has a huge selection.
    "On it. I hate software." ~Cpt Snarklepants
  • ThymThym
    Posts: 100,741
    CB said:

    Lakewood said:

    Cool, so the lhbs wasn't too bad? Good news there


    The guy is a Whatevs, but the prices aren't terrible and he has a huge selection.

    Sounds like a win to me
    The only thing between me and a train wreck is blind luck..... - Kenny
  • C_BC_B
    Posts: 76,472
    @ceannt any last minute thoughts? Planning to brew this tomorrow afternoon, weather permitting.
    "On it. I hate software." ~Cpt Snarklepants
  • C_BC_B
    Posts: 76,472
    I tweaked to this.

    Malt & Fermentables
    % LB OZ °L PPG
    52% 11 0 Golden Promise Mash 2° 32
    39% 7 14 Extra Light Dry Extract Late Boil 3° 44
    4% 0 14 Crystal 60L Mash 60° 34
    4% 0 12 Crystal 20L Mash 20° 34
    2% 0 6 Roasted Barley - 550L Mash 550° 34
    13.125 lbs grain


    Hops
    Usage Time OZ AA » IBU
    boil 60 min 2 East Kent Goldings ~ pellet 5.8 » 20.6
    boil 5 min 1 Fuggles ~ pellet 4.3 » 1.5

    What the crap? With this exact recipe at 75% eff, Hopville gives me 1.066 OG and BrewTarget gives me 1.053. Why are they so different? I need to do this crap by hand on paper. That way I'll know I'm right, cuz I did it...
    "On it. I hate software." ~Cpt Snarklepants
  • ThymThym
    Posts: 100,741
    given that you are donig a late boil addition of the DME, your hop utilization numbers could be off, depending if the software you are using can take that into account.
    The only thing between me and a train wreck is blind luck..... - Kenny
  • C_BC_B
    Posts: 76,472
    Lakewood said:

    given that you are doing a late boil addition of the DME, your hop utilization numbers could be off, depending if the software you are using can take that into account.



    But hop utilization doesn't effect gravity, right? Gravity effects hop utilization, but that's a one way street?
    "On it. I hate software." ~Cpt Snarklepants
  • ThymThym
    Posts: 100,741
    CB said:

    Lakewood said:

    given that you are doing a late boil addition of the DME, your hop utilization numbers could be off, depending if the software you are using can take that into account.



    But hop utilization doesn't effect gravity, right? Gravity effects hop utilization, but that's a one way street?


    yes, gravity effects hop utilization, not the other way around. i wasn't really trying to answer the question of why the software were giving different OG readings. just trying to point out another area of potential concern with the use of some of the tools out there.

    the OG discrepancy comes down to a couple things, efficiency, gravity potential and volume. if one software is expecting a brewhouse efficiency and the other is a mash efficiency you could have a problem there. if they are using different gravity potentials for the same grain, you could have a problem there, and if the final volumes are different, you could have a problem there.

    you should start from the end of my list and work backwards.
    The only thing between me and a train wreck is blind luck..... - Kenny
  • ceanntceannt
    Posts: 47,210
    The software may also be figuring your mash efficiency for the extract..... this will artificially yield lower gravity on the computer screen....
    Do it by hand...
    In wine there is wisdom.
    In beer there is freedom.
    In water there is bacteria.