Alcohol Hydrometer Temp. Correction Table

Any hardware used for mashing, fermenting or aging.

Moderator: Site Moderator

Post Reply
Wanker
Novice
Posts: 85
Joined: Thu Sep 30, 2010 11:53 am

Alcohol Hydrometer Temp. Correction Table

Post by Wanker »

This is the most complete table I have found for correcting an alcohol hydrometer calibrated at 60F for any temp from 0*F to 100*F at all proofs.

From the Alcohol and Tobacco Tax and Trade Bureau so I would assume they are pretty accurate.

http://www.ttb.gov/foia/Gauging_Manual_ ... able_1.pdf
You may want to check to see what temp your Alcohol Hydrometer is calibrated to (it should say on the scale inside it). I was using this site http://www.stillmaker.de/correction_table.html which uses a Widder Hydrometer which are calibrated for 20*C or 68F but when I looked carefully at my Hydrometer from Brewhaus it is calibrated for 60F.

The depressing result being I have been thinking my product was just under 95% when in fact it is only about 93%. :(
My next run I will be using a lot more reflux to hopefully get it closer to a true 95%.
"Alcohol: The source of and solution to all of life’s problems." -Homer Simpson
shizam
Novice
Posts: 52
Joined: Tue Jan 28, 2014 6:22 am

Re: Alcohol Hydrometer Temp. Correction Table

Post by shizam »

Nice! Thanks for posting.
Howling Wolf
Novice
Posts: 47
Joined: Mon Nov 11, 2013 12:39 am

Re: Alcohol Hydrometer Temp. Correction Table

Post by Howling Wolf »

There's an app called Brewzor for Android in the google play store that I use. It works great.
chris_zx2
Swill Maker
Posts: 235
Joined: Fri Mar 14, 2014 12:36 pm

Re: Alcohol Hydrometer Temp. Correction Table

Post by chris_zx2 »

Howling Wolf wrote:There's an app called Brewzor for Android in the google play store that I use. It works great.
Shut up!!!! I've been thinking that would be great. Gonna get it now. Anybody else know of other apps for android? Or maybe someone can develop an app that incorporates all the calculates on the main page!
chris_zx2
Swill Maker
Posts: 235
Joined: Fri Mar 14, 2014 12:36 pm

Re: Alcohol Hydrometer Temp. Correction Table

Post by chris_zx2 »

Just found distillers toolbox on play store, haven't tried it but sounds good!
Maritimer
Rumrunner
Posts: 716
Joined: Sun Jul 01, 2012 6:09 am
Location: Nova Scotia, Canada

Re: Alcohol Hydrometer Temp. Correction Table

Post by Maritimer »

Wanker wrote:The depressing result being I have been thinking my product was just under 95% when in fact it is only about 93%.
My next run I will be using a lot more reflux to hopefully get it closer to a true 95%.
Poor Wanker! That 95.6% figure you keep seeing is %ABW, alcohol by weight. I always thought it was %ABV, too. But when you convert %ABW to %ABV, it comes out to 97.2%ABV.

M
Post Reply