A Wort Study

Discussion in 'Homebrewing' started by TheBeerery, Jan 15, 2020.

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  1. TheBeerery

    TheBeerery Initiate (0) May 2, 2016 Minnesota

    Ever wonder how long it actually takes for yeast to pick up all the oxygen from oxygenation? How long it takes pH to drop from the yeast? How much Dissolved oxygen that hop addition added? How about in relation to gravity? How about in real time with every second updates? New “wort study” getting ready to go down. I’ve had enough “citizen science” it’s time for the real thing to step in and and set the record straight. Results will be published soon!



    The bio reactor (aka murdered brew bucket)

    [​IMG][​IMG]



    Specific bio reactor transmitters.

    [​IMG]



    Results to be graphed just like the YOS study.

    [​IMG]
     
  2. Brewday

    Brewday Zealot (721) Dec 25, 2015 New York

    Neat test. Are you going to try both pellets and leaf.
     
  3. VikeMan

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

    Yeast, in any metabolic state, absorb all available oxygen, instantly. What a silly question. </satire>

    <serious> Looking forward to seeing the results.
     
    Singlefinpin likes this.
  4. thebriansmaude

    thebriansmaude Crusader (472) Dec 16, 2016 Canada (AB)
    Trader

    Sweet. What is the plan for the dry hop addition ?
     
  5. Granitebeard

    Granitebeard Zealot (549) Aug 24, 2016 Maine

    I reject your reality and substitute my own.
     
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  6. TheBeerery

    TheBeerery Initiate (0) May 2, 2016 Minnesota

    Yes

    healthy active yeast so far has shown ~25 min.

    Add it to beer

    Perfectly fine with that.
     
  7. Granitebeard

    Granitebeard Zealot (549) Aug 24, 2016 Maine

    Just being funny. I would like to see how this turns out as I have been playing around with the idea of some kind of real time system, just mine is a little more wishful thinking then actual science.
     
  8. thebriansmaude

    thebriansmaude Crusader (472) Dec 16, 2016 Canada (AB)
    Trader

    cool just checking thanks
     
  9. Jasonja1474

    Jasonja1474 Savant (1,100) Oct 15, 2018 Tennessee
    Trader

    Looks fun wish I could join in too lol!!
     
  10. Singlefinpin

    Singlefinpin Pooh-Bah (2,400) Jul 17, 2018 North Carolina
    Pooh-Bah Trader

    Interesting! Fun! Beer! Science! I like it!
     
  11. TheBeerery

    TheBeerery Initiate (0) May 2, 2016 Minnesota

    Wort Study #1 is underway.

    Details:

    Helles (lager)
    OG 1.049
    Oxygenation = 12ppm
    Yeast L17 2 packages and then a 2l starter.
    Batch size 5.75 gallon into fermenter.
    Start of Fermentation 1/17/20 16:20

    And now we wait..
    http://lowoxygenbrewing.com/wort and fermentation studies!

    The UI has been redesigned and secured now. Different variables are on your left. It should be pretty self explanatory, You will want to be looking at "BIO".

    First airlock bubbles at 19:05
     
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  12. wasatchback

    wasatchback Pooh-Bah (1,574) Jan 12, 2014 Tajikistan
    Pooh-Bah Trader

    Why L17?

    Don’t you usually ferment rather cold yet that yeast is generally used by breweries that want to ferment their lagers warmer.
     
  13. VikeMan

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

    Was it 16:20 or 17:20?

    Also, what was the DO blip at approximately 18:00? My first thought is that was when you oxygenated, but if so, that would mean the unaerated wort already held about 9.6 ppm.
     
  14. TheBeerery

    TheBeerery Initiate (0) May 2, 2016 Minnesota

    All these ingredients have been donated. So that’s why. There are literally hundreds of tests that could/would/will be run and you have to start somewhere. L17 seems to be all the rage these days.

    16:20.
    You have to remember I in-line oxygenate to fermenter and all these readings are directly in the fermenter. Hence the starting high in the graphs.
    Simply just a restart/update/resync of the graphing variables from the brewing system to the graphing software (I think it was only like a 400ppb offset when resync). The 4-20ma output conversion into the software was just a touch off so I fixed it.
     
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  15. wasatchback

    wasatchback Pooh-Bah (1,574) Jan 12, 2014 Tajikistan
    Pooh-Bah Trader

    Have you used the Augustiner strain much? Gonna ferment it at 52-54 like most do?

    Just wondering cause I’ve always struggled with the sulfur I get from that yeast and never figured out how to use it. Never have sulfur “issues” with really any other lager strain other than Hessian Pils from TYB.
     
  16. TheBeerery

    TheBeerery Initiate (0) May 2, 2016 Minnesota

    Nope, never. Yes the temperature is 53f (corrected, uncorrected is +3 offset, compared to graph).
     
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  17. wasatchback

    wasatchback Pooh-Bah (1,574) Jan 12, 2014 Tajikistan
    Pooh-Bah Trader

    Based on 2 packs and a 2L starter you went your typical pitch rate even at a higher temp correct?

    Would be interested to see how pitch rate affects timing of O2 pickup. Always assumed that along with such a low pitch and ferment temp was why you pitched lagers so high.
     
    Singlefinpin likes this.
  18. pweis909

    pweis909 Grand Pooh-Bah (3,250) Aug 13, 2005 Wisconsin
    Pooh-Bah

    Are you counting bubbles?
    :grin:

    As funny as I'm trying to be, I recently recalled to a younger co-worker a scenario in which I legit counted bubbles for the sake of science, using a bubble flow-meter on the tail end of a GC system to confirm the flow-rate settings.
     
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  19. TheBeerery

    TheBeerery Initiate (0) May 2, 2016 Minnesota

    No bubble counting, yet. But will soon feature a mass spectrometer.
     
    Singlefinpin likes this.
  20. pweis909

    pweis909 Grand Pooh-Bah (3,250) Aug 13, 2005 Wisconsin
    Pooh-Bah

    You, sir, have a serious addiction to discovering the truth at all costs.
     
    Singlefinpin likes this.
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