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Old 08-13-2009, 08:01 AM   #1
Bru
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It is agreed that sparging should not continue once OG reached 1.008 (or required volume has been reached). Trouble is the temperature at that point affects the reading by 10 points or so. Best would be to cool the sample but there is no time to wait for it to cool. In that case do I sparge untill the hydrometer reads 1.000 ?
- allowing for temp adjustment gravity would be +-1.008 ?

 
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Old 08-13-2009, 10:09 AM   #2
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That is what I do.

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Old 08-13-2009, 10:54 AM   #3
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Palmer has a table for temp adjustment and specific gravity. check it out. it comes in handy.

How to Brew - By John Palmer - Appendix A - Using Hydrometers
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Old 08-13-2009, 12:14 PM   #4
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Ahhh man! This explains some of my efficiency issues... thanks!

 
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Old 08-13-2009, 02:19 PM   #5
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I use a refractometer. It is so much easier when the wort is hot.

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Old 08-13-2009, 02:32 PM   #6
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Yeah, a refractometer is almost essential for AG brewing, and one of my favorite purchases for the brewery. You can find them pretty cheap on e-bay.
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Old 08-13-2009, 02:49 PM   #7
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Quote:
Originally Posted by Whiskey View Post
Yeah, a refractometer is almost essential for AG brewing, and one of my favorite purchases for the brewery. You can find them pretty cheap on e-bay.
Just found one for $30 shipping included! Glad u mentioned e-bay. I never think to look there....
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Old 08-13-2009, 02:57 PM   #8
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Quote:
Originally Posted by MaynardX View Post
Just found one for $30 shipping included! Glad u mentioned e-bay. I never think to look there....
Great find! You will not regret it. You can use glass eye droppers or pippettes to pull the wort for the sample. Also make sure you do the calibration exactly how it is described. Good luck!
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Old 08-13-2009, 05:42 PM   #9
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Quote:
Originally Posted by Whiskey View Post
Great find! You will not regret it. You can use glass eye droppers or pippettes to pull the wort for the sample. Also make sure you do the calibration exactly how it is described. Good luck!
+1 on the Refractometer, I just got one on ebay for 30, I can't wait to use it this weekend, using a hydrometer to monitor my sparge was getting too frustrating. I anticipating I will wish i bought one five years ago after this weekend.

 
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Old 08-13-2009, 06:26 PM   #10
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besides monitoring the sparge, what other tasks does a refractometer work better than a hydrometer ?

 
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