Quick Reference — Specific Gravity and Densities

Measuring specific gravity with a hydrometer.

I have seen two formulas for calculating percentage alcohol by volume based on the change in specific gravity (Δ s.g.). The first is from the standard reference "The Complete Joy of Homebrewing":

%ethanol = 127*(Δ s.g.)

The other is from the Cooper's brewing supply company:

%ethanol = 0.5 + 134.05*(Δ s.g.)

The second of those seems to produce more realistic numbers.

The density of dextrose is 0.62 grams/cm³.
This is from the powderandbulk.com reference site.

The density of honey is 1.36 grams per milliliter:
1 liter = 1360 grams
0.736 liter = 1000 grams

"I have made an important discovery: that alcohol, taken in sufficient quantities, produces all the effects of intoxication."

— Oscar Wilde

Belgian Beers and Brussels Cafes

Back to the technical projects....

Back to Bob's Fun Page....

Home Unix/Linux Networking Cybersecurity Travel Technical Radio Site Map Contact

Tweet