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Acid washing wild yeast
  • JerryJerry
    Posts: 72,164
    I started this by juicing some apple from the yard. Put the juice in a clean carboy and let it do it's thing for a week.
    image
    Then I decanted it off the yeast cake (it wasn't quite finished, but I don't want so much of the slow yeast for beer anyway).
    image

    I boiled some water and then chilled it in the fridge till it was room temp
    image

    Then I mixed the boiled water with citric acid (it's what I had around, phosphoric would be preferable)
    image
    1.jpg
    1944 x 2592 - 2M
    2.jpg
    1944 x 2592 - 2M
    3.jpg
    1944 x 2592 - 2M
    4.jpg
    1944 x 2592 - 2M
  • JerryJerry
    Posts: 72,164
    Then add the acid solution to the yeast. Shooting for a pH of 2.0-2.6 I think...
    Anyway I over shot and got 1.7 and had to adjust using sodium bicarbonate. After that I hit 2.2.

    I put it in the fridge and I'm letting it sit there for ~two hours. I have some more boiled water chilling in there with some more baking soda in it. The plan then is to decant the yeast and dump the water in to bump the pH back up.
  • JerryJerry
    Posts: 72,164
    It would be best to have some wort to pitch into. But I don't have that. If I'm up to it tonight I might make some wort with extract, but we'll see.
  • JerryJerry
    Posts: 72,164
    So I decanted and added the water/sodium bicarbonate. It fizzed a bit, but I didn't loose much. I'd really like to check pH right now, but that's just another chance for contamination.

    I am making a few gal of simple wort tonight. I'm going to give it about 200ml tonight and put the rest in a carboy in the morning (no chill because I'm lazy). The hope is that it will show fermentation before I pitch, so I'm sure it's alive. If it's dead I'll use it as a starter for some expired white labs stuff I have kicking around.
  • scoobscoob
    Posts: 16,617
    Interested in following this one...... There be an apple tree...
    Right.....
    Back......
    There.....
    {points to tree along the back fence}
    Jesus didn't wear pants
  • JerryJerry
    Posts: 72,164
    It's alive!

    It's not going strong, but there are signs of life. I have no idea if this yeast will do anything good. The cider was fermenting far too hot and was getting a little bit of an ethyl acetate problem. But I have no idea what survived this crazy washing thing and what didn't. Only time will tell.
    5.jpg
    1944 x 2592 - 2M
  • JerryJerry
    Posts: 72,164
    Just before pitching it looked like this:
    6.jpg
    1944 x 2592 - 2M
  • JerryJerry
    Posts: 72,164
    I tried to leave the sediment (mostly apple peal bits, and some dead yeast) behind. And here it is doing nothing, so far...
    7.jpg
    1944 x 2592 - 1M
  • JerryJerry
    Posts: 72,164
    oh I forgot the wort was at 1050 when pitching. I think 1040 would be better, but as long as it's not a huge beer it should be fine.

  • BenSBenS
    Posts: 6,248
    Cool.
    There's no starting point. It's just a massive sea of shit to wade through until you find the occasional corn kernel. -DrCurly
  • C_BC_B
    Posts: 76,481
    Ok, I'll ask... Is that a condom?
    "On it. I hate software." ~Cpt Snarklepants
  • FuzzyFuzzy
    Posts: 46,034
    C_B said:

    Ok, I'll ask... Is that a condom?



    you already know it is...
    "Oh, you were serious? I was drunk."-C_B
  • FuzzyFuzzy
    Posts: 46,034
    the whetstone is pretty random.
    "Oh, you were serious? I was drunk."-C_B
  • C_BC_B
    Posts: 76,481

    C_B said:

    Ok, I'll ask... Is that a condom?



    you already know it is...

    I know it is.
    :(
    "On it. I hate software." ~Cpt Snarklepants
  • JerryJerry
    Posts: 72,164
    C_B said:

    Ok, I'll ask... Is that a condom?



    They're just sterile balloons. They are commonly used as air locks by 17year olds making hooch.
  • JerryJerry
    Posts: 72,164

    the whetstone is pretty random.



    Do you think I cleaned my kitchen before doing this project? No, I did this project rather than cleaning the kitchen... my wife isn't too happy with me right now.
  • scoobscoob
    Posts: 16,617

    the whetstone is pretty random.



    You DON'T have one sitting on a kitchen counter?!?

    I do.
    Jesus didn't wear pants
  • FuzzyFuzzy
    Posts: 46,034
    scoob said:

    the whetstone is pretty random.



    You DON'T have one sitting on a kitchen counter?!?

    I do.


    nope. mine it at my desk.
    "Oh, you were serious? I was drunk."-C_B
  • JerryJerry
    Posts: 72,164
    Seeing CO2 production in the carboy. Something is alive in there, hoping it's good yeast and nothing nasty.
  • JerryJerry
    Posts: 72,164

    scoob said:

    the whetstone is pretty random.



    You DON'T have one sitting on a kitchen counter?!?

    I do.


    nope. mine it at my desk.


    You trolls didn't even notice the breast pump.
  • FuzzyFuzzy
    Posts: 46,034

    scoob said:

    the whetstone is pretty random.



    You DON'T have one sitting on a kitchen counter?!?

    I do.


    nope. mine it at my desk.


    You trolls didn't even notice the breast pump.


    my hands are breast pumps.
    "Oh, you were serious? I was drunk."-C_B
  • JerryJerry
    Posts: 72,164

    scoob said:

    the whetstone is pretty random.



    You DON'T have one sitting on a kitchen counter?!?

    I do.


    nope. mine it at my desk.


    You trolls didn't even notice the breast pump.


    my hands are breast pumps.


    You spend too much time with lactating goats.
  • ceanntceannt
    Posts: 47,225

    scoob said:

    the whetstone is pretty random.



    You DON'T have one sitting on a kitchen counter?!?

    I do.


    nope. mine it at my desk.


    You trolls didn't even notice the breast pump.


    my hands are breast pumps.


    You spend too much time with lactating goats.


    According to his bumper sticker .. "teats are teats "
    In wine there is wisdom.
    In beer there is freedom.
    In water there is bacteria.
  • JerryJerry
    Posts: 72,164
    Update: The "beer" is still really sweet but has a bad ester taste.
  • C_BC_B
    Posts: 76,481

    Update: The "beer" is still really sweet but has a bad ester taste.



    That doesn't sound good?
    Esters mean yeast, not infection. But the sweetness leans not much action?
    "On it. I hate software." ~Cpt Snarklepants
  • JerryJerry
    Posts: 72,164
    C_B said:

    Update: The "beer" is still really sweet but has a bad ester taste.



    That doesn't sound good?
    Esters mean yeast, not infection. But the sweetness leans not much action?


    My conclusion too, I'm just going to let it go and see what happens. I don't need a 5 gal carboy for anything right now anyway, i've got bigger plans.