Lum wrote:
> Perhaps some of the difference is due to the 6 to 8 milligrams per litter of
> titratable acid?

That was essentially the point I was originally making - thus my
comment "This may due to SS and/or dissolved substances in wine," e.g.
acids.

Frederick wrote:
> No, I don't agree. Just to be on the safe side, I actually made up a 12%
> alcohol solution using Everclear and water from the tap. I am sitting
> here now, watching my hydrometer float in that solution. It reads
> 0.990

I just did it (not Everclear, but similar product) and got pretty
close to 0.990. Perhaps the Everclear (or equivalent product) has
dissolved substances that contribute just like those in wine might?
Otherwise it simply doesn't make sense.

> PS - what is "SS" ??

Suspended solids.

Ben