Hydrometer offset feature

dholt

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I need a sanity check; my hydrometer reads 1.004 in water, should I be using 0.004 or -0.004 as the offset? I've always used -0.004 to subtract back to 0.000 but my numbers seem low...
 
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Are you using distilled water??? it's very important that you do...
 
And at calibration temp usually 20c
Yep subtract 4 points
 
Yeah, distilled water at ~68F, though our tap water here doesn't have much in it so it also reads 1.004. Thanks for the confirmation
 
Yeah so a 1.050 in wort you would read 1.046. Assuming the water is clear.
 

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