Joe Sallustio wrote:
> That's an incredible amount of SO2, it's probably the issue. You have
> added 5 times too much several times too many as I see it.
>
> It's my understanding that 1 tablet per gallon equals around 100 PPM, I
> ony add 20 PPM per rack and rack 3 times or less as a rule.
>
> You can get titrettes to measure this, other ways like vacuum
> aspiration are better but pretty costly. Just use the color of the
> foam in the titrettes as an indication of change (end point).
>
> If your acid test results are correct it's not that high, contact the
> people you bought it from to determine if your process is correct.
>
> High pH is an issue, but 3.85 is actually not out of the question.
> Technically it's too high but I have had them last 5 years. If
> anything they age quickly.
>
> If it's too much sulfite, I would see how much it is and go from there.
> I would calculate this as about 400 PPM if you let things splash when
> you rack and that is 6 to 8 times too much. Blending with this years
> wine may be the best option if that is the case.
>
> Joe

According to Ben's SO2 article, it's a bit lower - 67ppm for potassium
based tablets or 78ppm for sodium. But it's still way too much. At that
level, it should be plainly noticeable by smelling alone, even without
titrets.

Also, titrets are good only if the level is < 100ppm, otherwise the
measurement is off the scale. If that happens, you can always dilute
the sample to a 1:1 or 1:2 ratio with distilled water and then measure
that.

Pp