I brewed my first all-grain this past weekend and took a hydrometer reading before boiling and without thinking I took the reading at the temp of the wort leaving the mash tun... I wrote everything down thinking I could just adjust it based off the temp later on... well after looking at all the temp charts online, I couldn't find anything that would go high enough to help adjust the reading I have... the reading I had was 1.025 at 160 degrees... anyone have any guess what the real reading would be..?? Thanks everyone...
Jester
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The temperature adjustment becomes less accurate the further your temperature is from 60F (or whatever temp your hydrometer was calibrated for). I try to cool my samples down into the 70's before taking a reading.
The temperature adjustment becomes less accurate the further your temperature is from 60F (or whatever temp your hydrometer was calibrated for). I try to cool my samples down into the 70's before taking a reading.
Thats definitely what I am going to do for now on...
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Using promash I get 1.047 for calibration at 60F. I think you will start to see different numbers from different source due to the non-linearity of density vs. temp especially at high temps, all depends on the extent the person developing the table took to account for this.
Using promash I get 1.047 for calibration at 60F. I think you will start to see different numbers from different source due to the non-linearity of density vs. temp especially at high temps, all depends on the extent the person developing the table took to account for this.
I may have to look into whether BTP can do this conversion... I am stil ltrying to figure this program out...
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Turbodog Clone
RYE PA
Andes Mint Chocolate Stout
One of the reasons the printed charts don't go all that high is that it is difficult to get an accurate reading at the higher temperatures. My own observations have shown that the corrected reading I get at high temperatures will vary a couple points from the temperature at the calibration temperature. The higher the uncorrected temperature, the further off the corrected reading will be.
That said, the corrected reading from a 150° sample will be reasonably close for our purposes. A refractometer would work much better if you need it to be more accurate. When checking the gravity of wort in the boil kettle, as I do towards the end of the boil, a refractometer is the only practical way of checking since it will take too long for the sample to cool before you can get an accurate reading with a hydrometer.
hydrometer temp adjustment... high heat..??
Linear Mode
