Help with hydrometer

Discussion in 'Beginners Brewing Forum' started by Brewer #329768, Aug 6, 2020.

  1. Rudibrew

    Rudibrew Active Member

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    Hi everyone,I managed to get a hydrometer.
    Problem is the chart readings are not for alcohol,I think.
    Is there a way I can apply a proper chart to it once I have ascertained what the water line is.
    Thanks for your help IMG_20200806_141523.jpg
     
  2. SabreSteve

    SabreSteve Well-Known Member

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    Water will always be at 1.000. Could be reading it wrong but it looks from the photo that the scale is way too large and that might make it hard to make the readings you need for beer. It would seem the first line down from the top is 1.100?
    If I'm reading that right that's crazy. My last batch for example had an OG of 1.050 and FG of 1.012. Unless I'm misinterpreting the scale that could be a problem.
     
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  3. Rudibrew

    Rudibrew Active Member

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    I think the scale must have been calibrate to a different item.
    But it should show me where the water line is.
    Could I then print out a scale from a site and affix it over the existing one
     
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  4. SabreSteve

    SabreSteve Well-Known Member

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    If that scale isn't for SG I don't know what it is. Maybe someone else has some ideas. Water will always have an SG of 1.000 though.
     
  5. SabreSteve

    SabreSteve Well-Known Member

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    What you could do is take readings of liquids in the range you need for beer that are known constants and use that to mark a new scale. Like I said though I just think those will be too small and close together to use accurately. But you know water is 1.000 so start there. Then do some web searching and find something you have at home that's known to have a SG of 1.010, then one that's 1.020 and so on
     
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  6. Rudibrew

    Rudibrew Active Member

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    That's a good idea
     
  7. Nosybear

    Nosybear Well-Known Member

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    Numbers are off for it to be Brix/Plato... Can't be alcohol percentage either. Put some water in there and see what it reads: 1.000 in SG, 1.0 in Brix/Plato. Then mix a pound of sugar with a gallon of water - convert to metric if needed - that should measure 1.046. You now have your conversion: 1.000/x=1.046/y. Gravity may not be completely linear but over the range we use, close enough.
     
  8. Megary

    Megary Well-Known Member

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    Where did you get that hydrometer from? Isn't that what they use to check battery cells?

    For as cheap as hydrometers are, why not just buy the right one?
     
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  9. Frankenbrewer

    Frankenbrewer Well-Known Member

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    I agree with Megary! Return that one get your money back and buy a new one.
     
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  10. BOB357

    BOB357 Well-Known Member

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    Definitely for wet cell batteries. Where'd you find that at, your local auto parts store? What you need will be described as a Beer/Wine or triple scale hydrometer.
     
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  11. ^Tony^

    ^Tony^ Active Member

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    Unless that's a finishing hydrometer.You can buy some that have 0.090 to 1.025 on them with the markings in the 0.001 ratio. They are no good for SG but kick butt for FG. Or it could be for batteries....I've brewed a few that could be classified as battery acid....:p:oops:
     
  12. BOB357

    BOB357 Well-Known Member

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    Trust me. It's a battery hydrometer. The green range is a dead giveaway.
     
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  13. ^Tony^

    ^Tony^ Active Member

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    Sooooooo.....only good for Russian Imperials and barley wine? ;):D
     
  14. SabreSteve

    SabreSteve Well-Known Member

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    fixed it
     
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  15. SabreSteve

    SabreSteve Well-Known Member

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    I know that you've talked about difficulties getting stuff shipped. If you're really desperate to get one and can't find a proper one maybe you can make your own. If you search homemade hydrometer there's a ton of sites and YouTube videos with tutorials. This is just the first one that came up:
    https://www.wikihow.com/Make-a-Hydrometer
     
  16. Hawkbox

    Hawkbox Well-Known Member

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    Also for calibrating Sunrype apple juice if you can get it is 1.050 out of the box.
     
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  17. RalphK

    RalphK Member

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  18. CausticWolf

    CausticWolf Member

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    Yeah, could be for wine, not beer
     
  19. AHarper

    AHarper Well-Known Member

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    Some of my beers are quite acid... maybe I should have used that hydrometer instead?

    upload_2020-9-2_11-5-52.png
     
  20. Rudibrew

    Rudibrew Active Member

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    update:
    Finally got a beer hydrometer,lol
    Gtting some good pilsen ,chocolate and cara malts delivered tomorrow also,
    Feel like a kid on xmas eve,lol
     

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