Just a note: I'm sure you all know how to measure ABV, however, this
is the procedure that I use:
How ABV Is Calculated.
First, a sample of the finished must is collected, brought to a
temperature of 60ºF (The calibration temperatuer of your hydrometer)
and decarbonated. The specific gravity is measured carefully and a
very carefully measured volume (i.e., 250ml or more) is placed in a
pot and brought to a boil for about 10 minutes. The remainder is
cooled to 60ºF again and returned to the graduated cylinder or other
measuring device, such as a volume flask. Distilled water is added to
bring it back to the original volume. After agitation, the specific
gravity is again measured. The alcohol by volume is then calculated
by subtracting the final gravity from the gravity after boiling then
multiply the result by 469.5. For example, if the final gravity of
your must was 1.010 and the gravity after boiling was 1.021, the abv
would be (1.021-1.010) X 469.5= 5.2% abv.
Note: Any water boiled off will be removed as pure water. The
addition of distilled water replaces any and all water removed during
the process. This results in a very accurate determination of ABV.
Just my 2¢..
--- In Distillers@yahoogroups.com
, "peter_vcb <viciousblackout@y...>"
> Hi Randy
> how are you going to determine the ABV of your wash when it warms
> i thought the only way would be to dilute vodka down to 18% freeze
> and strain the ice like you say, and then measure the new %. can
> measure the ABV of a sugar wash?
> is it really below 0F? how cold is it in C