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Thread: alcohol % ???

  1. #1
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    Wink alcohol % ???

    This seems like kind of a dumb question.
    Is there a way to measure the exact amount (%) of alcohol in your mead? Say you never took readings when you started or finished the mead.
    Does a finisher work for this measurement?

  2. #2
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    If you didn't measure the sg in the beginning, you're pretty much stuck. Not knowing where you started, knowing where you are won't help. It's like being at mile marker 335 on the highway...if you don't know the mile marker where you got on the highway, you can't tell how far you've traveled.

  3. #3
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    Do you have the recipe? We can figure out the original fermentables from that, and then from the final gravity do the math.
    Bees, brews and fun
    in Lyons, CO

  4. #4
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    Oh, or if it's a dry mead you could certainly use a proof hydrometer or a winemaker's thingie. I forget the name, but it's basically a pipette with a graduated scale; capillary action of ethanol compared to water is how it works. But for both, you need a dry mead because sugar interferes. Vinometer!
    Bees, brews and fun
    in Lyons, CO

  5. #5
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    Send me some. I'll "ballpark" it for you....

  6. #6
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    Smile

    Bjorn's method is unreliable.....You better send some to me to confirm his findings.

  7. #7
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    Send me some, send Aspera some, then send some extra. We'll need to compare notes over a few drinks to get it right. You do want it right don't ya?

  8. #8
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    Stop By And I Will Share With All, Maybe Not All Its A Small House.

    The Problem Is There Is Fruit In Most Of These. I Know The 1lb Honey = 1% Booze, Abouts, But When The Fruit Is Tossed In That Changes Everything.

    I Live In The Middle Of Oregon Wine Country, There Is A Lab The Next Town Over, Wondering What The Cost Would Be To Test Samples And Get The Proof That Way.

    How Do They Get The % For Wines? Since It Has To Be On The Label I Assume It Is Pretty Accurate

  9. #9
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    They get it the same way we do; before and after gravity readings. Fruit doesn't change the equation too crazily. A lab analysis if I recall goes around $20 to $40 depending on what you want analyzed. But that was a long time ago and for only one lab (Siebel).
    Bees, brews and fun
    in Lyons, CO

  10. #10
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    Alcohol boils off at 78c (about 173 F).

    Take a known quantity (100ml) of mead, raise the temp to about 180F/81c, and hold it there for 20 minutes or so. Let the solution cool and measure the remaining volume.
    You can then compute the % by volume (original volume - final volume)/original volume.

    Haven't tried it, but science says it should be accurate.

    Fuzzy

  11. #11
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    Man ya let the best part evaporate off. What a shame. lol

  12. #12
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    Nsmith, I suppose that you could connect a condenser coil and harvest the runoff. But then you would be guilty of running an illegal still.

    Fuzzy

  13. #13
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    Default thanks fuzzy

    I may give that a try, illegal still don't get me started

    HOME OF THE FREE???
    Last edited by AndrewSchwab; 10-29-2007 at 04:04 PM.

  14. #14
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    Seen on a T-shirt:

    [SIZE=5]
    America: Land of the Free*
    [SIZE=1]*Void where prohibited, some restrictions apply[/SIZE]
    [/SIZE]
    Bees, brews and fun
    in Lyons, CO

  15. #15
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    Quote Originally Posted by Fuzzy View Post
    Alcohol boils off at 78c (about 173 F).

    Take a known quantity (100ml) of mead, raise the temp to about 180F/81c, and hold it there for 20 minutes or so. Let the solution cool and measure the remaining volume.
    You can then compute the % by volume (original volume - final volume)/original volume.

    Haven't tried it, but science says it should be accurate.

    Fuzzy
    We did something like that in high school chemistry. I don't remember the details though. That was ?? years ago.
    What I Smoke has a Sting to it

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