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  1. #1
    Join Date
    Jan 2007
    Location
    Clintonville, Wisconsin
    Posts
    30

    Default Hydrometer question

    I have a glass hydrometer that I bought used from an old beekeeper in town. He told me that he paid $40 for it 20? years ago - so I assume that it is a decent one. Anyways, my question is that it is calibrated for 68 deg F. However I quite often want to check honey at different temperatures. Say for example - in the double boiler at 120 deg. Is there some way to figure out a correction factor for other temperatures? Are these things accurate that far away from the design temp?

    Thanks,
    David

  2. #2
    Join Date
    Sep 2007
    Location
    Christchurch, N/A, New Zealand
    Posts
    45

    Default

    There is a way to work it out, I had a chart that came with the hydrometer I use when distilling which told you how to allow for the change in temperature... buggered if I know where it is now though.

    Something like this one here http://home.iitk.ac.in/~ashishg/hydrometer.htm

    No too sure what the hydrometer you've got measures (SG or Brix), but there is another chart here which you can use to convert between the two http://www.honeyflowfarm.com/conversionchart.htm

    Hope that helps you

  3. #3
    Join Date
    Aug 2005
    Location
    Silicon Valley, CA
    Posts
    1,244

    Default

    According to the instructions with mine for homebrewing, at 120f you will need to add
    aproximately .01 to the reading. Be advised that it is not a linear translation between
    60F and 120F. It is some kind of exponential.

    Fuzzy

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