Mash complete / before Sparge gravity

Discussion in 'Brew Sessions' started by Brewer #115018, Jan 8, 2018.

  1. TomvonD

    TomvonD Member

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    Hi Guys, does anyone know were I can find the gravity before sparging?

    It's not pre boil because then I already sparged.

    I would like to know if I am already there or not.

    Thx in advance
     
  2. Johnwk

    Johnwk Member

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    I'm not sure where that measurement would be significant, but if you need to calculate it, you could run enough of the wort out from the mash tun to measure it with a hydrometer. As it may contain some chunks of grain and other particles, you may have to let it settle a bit before taking a reading. Then adjust the reading for temperature.
     
  3. TomvonD

    TomvonD Member

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    I got a Herms setup so wort out is mostly clear. The measurement is no problem but what should the reading be before sparging. Then i can decide to sparge less
     
  4. Johnwk

    Johnwk Member

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    #4 Johnwk, Jan 8, 2018
    Last edited: Jan 8, 2018
    That's a difficult question since it depends on several factors, such as how thick you mash is to start with (water/grain ratio), the amount of conversion, the expected pre-boil OG, and how much sparge water you expect to add. Some of those calculations are in turn dependent on the boil-off rate.

    If you know the volume of wort in the mash tun that will drain out, the specific gravity of that wort, and the desired pre-boil specific gravity, there are calculations you could do do determine how much sparge water should be added.
     
  5. TomvonD

    TomvonD Member

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    #5 TomvonD, Jan 8, 2018
    Last edited: Jan 8, 2018
    Jup thats what I mean. Since brewersfriend is so complete I thougt there would be an estimate somewhere. Earlier I worked with a program called brouwhulp. That would give this number.
     
  6. Johnwk

    Johnwk Member

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    That would be a helpful feature. I have not worked with Brewer's Friend enough to determine whether or not such a feature is already built in. If not, you could request such a feature. I think the "Technical Issues" forum is where you could make such a request.
     
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  7. Dawg

    Dawg New Member

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    If you had a refractometer, you could take a reading maybe a gallon short of target volume and see where you were. That's what I do with my boil gravity.
     
  8. thunderwagn

    thunderwagn Well-Known Member

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    The priceless calc is one of the few that actually does what I believe your asking. It will estimate your 1st and second runnings.
    https://pricelessbrewing.github.io/BiabCalc/#Advanced
     
  9. Yooper

    Yooper Administrator
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    We're adding this to our list of features to work on and bring out ASAP.
     
  10. Ozarks Mountain Brew

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    Can we add it to the brew session and not just a calculator?
     
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  11. Yooper

    Yooper Administrator
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    I’m not sure where the developers are with integrating or where it would work, but that may be best.
     
  12. TomvonD

    TomvonD Member

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    Yes indeed sounds good. I think the brewsession is also the best place for it. I am looking forward to the feature thx!
     

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