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refractometers

  • 25-11-2012 7:33am
    #1
    Registered Users, Registered Users 2 Posts: 1,297 ✭✭✭


    Does anyone on here use a refractometer? I've seen a brix wort sg refractometer on eBay. Am I correct in saying its only good for Orginal gravity readings? How come? So I guess it's no good for telling you when fermentation is finished like a hydrometer does!


Comments

  • Registered Users, Registered Users 2 Posts: 2,259 ✭✭✭Shiny


    I use one mainly for checking the gravity of the wort before and after the boil in the brew pot. The main advantage is that you only use a drop and it can be done at any temperature. I decided to get one after I (foolishly) poured boiling wort into the plastic holder for the hydrometer causing it to melt and warp immediately. :o

    The refractometer can be used to check final gravity but the alcohol skews the result. The result needs to be put into a calculator to be adjusted. I don't trust using a refractometer for final gravity as it rarely matches my hydrometer. I also like getting the sample of fermented wort for tasting too so I don't mind using the hydrometer in that case.
    My only regret is not getting a dual scale refractometer with both brix and SG. That way I wouldn't have to keep converting the value every time I take a reading, that's laziness more than anything though. :rolleyes:


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