March 2009 Issue of Wines & Vines

How Good Are Wine Labs?

Spat about tannin assay raises accreditation issue

by Tim Patterson
It's rare that a dispute over a highly technical piece of wine analysis causes a stir in the industry, but the recent flap over the validity of the Adams-Harbertson tannin assay has been quite the exception.
In a paper published in the Journal of the Association of Official Analytical Chemists late last year, winery consultant Larry Brooks, Enologix founder L…

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