"Michael Brill" > wrote in message
om...
> >
> I wonder how accurate the various accuvin tests are. Even though you
> haven't benchmarked them, do you have a feel for their accuracy?
> Doing it at a lab will cost a few hundred dollars for all of my wines
> (about 10) and if the answer is no, then I'd have to do it again.

I don't have a feel for the accuracy- Each of their products is based on a
different approach- The PH strips seem fairly accurate, though I only use a
very good PH meter with a high quality probe. The TA measurement kit I did
benchmark against titration with NaOH, and the Accuvin test gives a good
general indication. I don't think anybody can say how good the malic acid
test kits are without running some controlled tests or without some data
from the manufacturer. The attractive thing is that the claimed sensitivity
is much better than paper chromatography, so perhaps this year I'll break
down and do some benchmarks. I'll post the results if I do.

Best wishes,

John