"Lum" > wrote in message
news
>
> "Ben Rotter" > wrote in message
> om...
> > Frederick,
> >
> > It seems to me that there is always an anomoly between final SG and
> > what you might predict anyway. This may due to SS and/or dissolved
> > substances in wine, which may vary from wine to wine.
> >
> > To illustrate my point:
> > Assume you have a bone dry wine of 12% abv. The density of ethanol is
> > 789 kg/m^3, that of water is 1000. Thus, the SG of this solution
> > should be:
> >
> > SG = (0.12*789 + 0.88*1000)/1000 = 0.975
> >
> > That's a far cry from the 0.990 we often see.
> >
> > Agree?
> >
> > Ben
>
> Ben,
> Perhaps some of the difference is due to the 6 to 8 milligrams per litter
of
> titratable acid?

That little acid would have zero effect on sg. It's just not enough
mass.


> Lum
> Del Mar, California, USA
>
>