RT Journal Article SR Electronic T1 Nondestructive Method of Determining Acetic Acid Spoilage in an Unopened Bottle of Wine JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 318 OP 321 DO 10.5344/ajev.2002.53.4.318 VO 53 IS 4 A1 April J. Weekley A1 Paul Bruins A1 Matthew P. Augustine YR 2002 UL http://www.ajevonline.org/content/53/4/318.abstract AB Nuclear magnetic resonance (NMR) spectroscopy was used to monitor acetic acid levels in intact wine bottles. An NMR probe and a spectrometer capable of examining full intact wine bottles are described and used to reliably measure the acetic acid content in wine down to 0.5 g/L, more than half the accepted limit in normal wine.Acknowledgments: The generous gift of the 1997 vintage UC Davis Experimental Vineyard wine from the UC Davis Viticulture and Enology Department, extensive conversations with Nick Marshall and Gus Maki, and the support of this work from the David and Lucile Packard Foundation and the Alfred P. Sloan Foundation are gratefully acknowledged.