Pliny the Elder said “In vino veritas”. The Wine Program helps winery laboratories obtain a true picture of their analytical quality data. Since 1999, we have offered an interlaboratory testing program through liaison with the American Society for Enology and Viticulture (ASEV) that provides participants with a higher degree of confidence in their measurements. The program is structured for everyone in the wine industry, from independent wineries to large, multi-site laboratories. ASEV's laboratory proficiency ad hoc committee provides CTS with insights into winery laboratory operations. Testing is conducted three times a year, scheduled to minimize impact on the crush season, to provide labs with an ongoing quality assurance tool for evaluating performance. Fourteen standard properties are included in each testing round. Each laboratory can choose to test any or all of the p ...

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