How often do you have to re-calibrate your refractometer? - Home Brew Forums
Register Now For Free!

Home Brew Forums > Home Brewing Beer > Equipment/Sanitation > How often do you have to re-calibrate your refractometer?

Thread Tools
Old 05-03-2012, 12:46 AM   #1
kh54s10's Avatar
Aug 2011
Tiverton, Rhode Island
Posts: 11,658
Liked 1867 Times on 1530 Posts

On my last brew day I checked and re-calibrated my refractometer before starting the mash. (I adjust it before every brew) I then thought my OG was low at 1.046 instead of the predicted 1.053 so I checked and it was off again. I re-calibrated and took another sample and got 1.052. Quite a difference.

Is it normal to have to re-calibrate this often?

Reply With Quote
Old 05-03-2012, 12:54 AM   #2
Jul 2010
Pflugerville, Texas
Posts: 346
Liked 13 Times on 13 Posts

I'm in a warmer climate so I tend to recalibrate with distilled water before every reading. Only takes a few seconds and gives me confidence in the reading.
Blog Recipes

Reply With Quote
Old 05-03-2012, 12:26 PM   #3
Calichusetts's Avatar
Nov 2011
Plymouth, MA
Posts: 3,017
Liked 505 Times on 303 Posts

I do it every two weeks or so, depending on how much I brew. Suprisingly, I've never really had to make any adjustments which is nice, maybe a tiny turn or so

Reply With Quote
Old 05-05-2012, 02:05 AM   #4
May 2012
Rockland, Maine
Posts: 37
Liked 4 Times on 4 Posts

Often it will vary by the amount you have mentioned between readings just based on temperature. You can often take readings from the same pipette 5 minutes apart and get the kind of variance mentioned above.
but distilled water at room temp should be done periodically to calibrate.

Reply With Quote
Old 05-05-2012, 02:15 PM   #5
Jan 2008
Salem, OR
Posts: 120
Liked 15 Times on 10 Posts

Due to changing temps throughout the day in the garage, I calibrate before nearly every reading. As mentioned previously, it only takes a few seconds.

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
How can I calibrate my refractometer? JiltedEmu Equipment/Sanitation 14 03-23-2013 11:21 PM
Calibrate!!!! ClarnoBrewer Equipment/Sanitation 2 01-29-2012 04:08 PM
Calibrate Refractometer with purified water? hinke Equipment/Sanitation 14 02-16-2011 09:05 PM
Calibrate your ale pale? bhs668 Equipment/Sanitation 3 01-10-2009 05:02 PM
Calibrate at 212 or 32....or toss out?? MCH Equipment/Sanitation 6 08-08-2008 10:49 PM

Forum Jump