TY - JOUR 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. SP - 318 LP - 321 DO - 10.5344/ajev.2002.53.4.318 VL - 53 IS - 4 AU - April J. Weekley AU - Paul Bruins AU - Matthew P. Augustine Y1 - 2002/01/01 UR - http://www.ajevonline.org/content/53/4/318.abstract N2 - 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. ER -