Steer me in the right direction (Sour)

Discussion in 'Homebrewing' started by inchrisin, Nov 6, 2015.

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  1. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    I'm making my third sour beer and ready to start dedicating equipment to the project. I'm making a Berliner, but with rye. Sour Roggen Weisse? I did a 90 minute mash at 150F and dropped the temp to 120F with cool spring water. I added an additional pint of grist (set aside to infect). I also added some dregs from a Boulivard Tank 7 Brett Saison. I don't plan on boiling the runnings, nor do I plan on hopping this beer. I also plan on adding a Kolsch yeast or a satchel of US 05 to help with fermentation. I'll expect the bugs to get the FG pretty low after a few months and expect at least some sourness. I'll keg and might rack to keg early to get some pressure on the bugs.

    Any thoughts or advice at this point? Maybe I'll come across some fruit concentrate or frozen berries and toss it into secondary.
     
  2. OldSock

    OldSock Maven (1,418) Apr 3, 2005 District of Columbia

    It might work, but it isn’t how I’ve had good results brewing Berliners. I’d separate the spent grain from the wort, add 88% lactic acid to lower the pH to ~4.5 (to reduce protein destruction) and then pitch a known/aggressive culture of Lactobacillus (e.g., L. brevis or L. plantarum). I just don’t want the risk associated with wild Lactobacillus (plus whatever else joins it from the grain). After it soured close to where I wanted (12-48 hours), I’d lower the temperature and pitch the US-05 and dregs (Tank 7 doesn't have Brett as far as I'm aware, Saison Brett would). Pitching yeast/dregs into the sour mash will result in one of two things: dead yeast, or some pretty weird flavors.
     
  3. kbuzz

    kbuzz Initiate (0) Jan 22, 2011 North Carolina

    nailed it
     
  4. jbakajust1

    jbakajust1 Pooh-Bah (2,552) Aug 25, 2009 Oregon
    Pooh-Bah

    Agree with Mike. You can grab a Good Belly shot or drink and pitch it to get the L. plantarum, it will even do its work at room temp.
     
  5. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    The mash was not at sach temp when I threw the Brett in there. (It was Boulivard Saison Brett, I just get the wording mixed up because they are in the same bottle with a similar label.) It was at 120F.

    I'll probably draw the mash over in the morning and continue to sour for another half day or so. Thanks for the advice so far.
     
  6. KeyWestGator

    KeyWestGator Savant (1,159) Jan 21, 2013 Florida
    Trader

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  7. sethsticles

    sethsticles Crusader (413) May 6, 2014 California
    Trader

    I know this comes late in the sour mashing / kettle souring that happened last week - but don't you need a boil to kill the wild bugs and allow the sacc yeast to do the fermenting? I thought without a boil the lacto will keep going and continue to sour the beer beyond what most people desire. Am I wrong? I'd love to be corrected if I am.

    Also, from what I know (I may not know anything), the point of doing a sour mash was to have a "fast fermentation" sour as you would get the sourness you want upfront and allow the sacc to do the majority of the fermentation on a normal schedule.

    At any rate, I did a rye berliner a year ago and it has been one of my best brews to date. I haven't re-brewed it yet because of the difficulties of replicating a sour mash beer.
     
  8. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah


    I got my runnings into primary within 24 hours. You're right that the lacto and bacteria will continue to chew on the sugars available. So will the Kolsch yeast that I pitched into primary. The mash wasn't as sour as I'd like and I assume that there will be more sourness to come. I'll take a few samples and taste for sourness within the next week or two. It'll ultimately go into a keg and I can chill it as soon as it hits the sourness I want. The beer should shape up quickly, given the style.
     
  9. OldSock

    OldSock Maven (1,418) Apr 3, 2005 District of Columbia

    Brett/Sacch isn't going to thrive at 120F, and will likely be killed. 105F is as warm as I'd ever expose yeast to (rehydrating dried yeast for example), and almost always will do it's best fermentation cooler than that still.
     
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  10. inchrisin

    inchrisin Pooh-Bah (2,013) Sep 25, 2008 Indiana
    Pooh-Bah

    I'll be hoping to blend this one down the road. :slight_smile:
     
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