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Alcohol Free Beer Brewing (Dont hurt me!)

Discussion in 'General Brewing Techniques' started by J-Warnie, 18/7/19.

 

  1. J-Warnie

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    Posted 18/7/19
    Be patient and if your not interested scroll on....

    Im a well seasoned brewer and due to health reasons i stopped brewing and drinking a few years ago. I drink carlton Zeros in social situations but long for a good zero beer that has some hop profile about it.

    Has anyone played with boiling off the alcohol post fermentation?

    Process I'm thinking is as follows

    - Mash as per normal (High end 68-70c)
    - Boil and skip a 60 min addition, add 40, 20 and 0 min additions
    - Chill and Ferment as per normal
    - once fermentation has completed, cold crash it for a few days
    - Drain beer off the yeast as clean as possible back into the boil pot and set the temp to 80c
    - Once its at 80c, throw a hop addition in and let it stay there for 30-40 mins
    - Chill and straight into a keg

    I'm going to have a crack sometime soon and see how it works out but would love to hear if anyone has ever played with it and had any good results.
     
  2. J-Warnie

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    Posted 18/7/19
    I might add by Zero i dont mean 0.0 as i know this would be impossible but 0.5% should be achievable, Id soon know if it had too much residue alcohol :doofus:
     
  3. MHB

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    Posted 19/7/19
    Worth a try, just a couple of points to think about: -
    Heat will change the flavour
    Alcohol is part of the flavour taking it out will change the taste.
    Alcohol vapor is very flammable, be careful if working indoors! Note that inhaling alcohol is pretty much the same as drinking it. Fuel air explosives have been called a "poor mans nuke" they can be impressive (from a good distance) but you don't want to be in the middle of one.

    Read up on Malta (not the island the drink). A lot of recipes include Molasses, personally I have had pretty good results by running off a portion of a boiling wort at about 10 minutes after the hop addition (I'm doing much bigger batches), just put it in a no-chill cube until required.
    Filter to a keg, carbonate and consume... If you were making a whole batch you should be OK adding the hops to the cube.
    Remember you have little or no infection protection once the NC cube is opened so get into the fridge and under pressure ASAP.
    Mark
     
  4. Schikitar

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    Posted 19/7/19
    WEF likes this.
  5. rizrah

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    Posted 19/7/19
    i remember reading somewhere about putting some beer in the oven at 80deg and leaving it there for 2 hours to remove the alcohol.
    could be worth a small scale trial?
    i would think if its that easy and tastes okay then the big breweries would be doing alcohol free "craft beer" and it would be all over the place.
     
  6. rizrah

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    Posted 19/7/19
    found it (https://www.thoughtco.com/boiling-point-of-alcohol-608491)
    • Baking a recipe containing alcohol resulted in alcohol retention ranging from 25 percent (1 hour baking time) to 45 percent (25 minutes, no stirring). A recipe had to be baked 2 hours or longer to bring the alcohol content down to 10 percent or lower.
     
  7. Brewer Tom

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    Posted 19/7/19
    I've made a zero English bitter before, after ferment put on the stove and get to about 80deg. You'll smell the alcohol at this point, hold for about 20 min. Keg to get the carbonation, if you bottle you need priming sugar which means you'll get some alcohol.
    Comes out ok for a zero, apparently hop bitterness increases dramatically so try low hop styles to begin with. Worth experimenting on kits until you get your feel.
     
  8. MHB

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    Posted 19/7/19
    That would be 10% of what you started with (from say 5% to 0.5%), likewise 25% at 1 hour would be from 5% to 1.25%
    And I would be real careful with those numbers.
    Mark

    Edit
    Meant to say, make sure you get rid of all the yeast in fermented beer. Cooking yeast produces lots of off flavours and aromas so do all you can to get rid of yeast, fine well, cold store, filter...
    M
     
    Last edited: 19/7/19
  9. Garfield

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    Posted 31/7/19
    How do you bottle condition a pasteurised beer? Do you add fresh yeast when you bottle?
     

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