RT Journal Article
SR Electronic
T1 Simplification and Improvements in Laboratory Methods for Small Wineries: Methodology for Volatile Acidity Determination
JF American Journal of Enology and Viticulture
JO Am J Enol Vitic.
FD American Society for Enology and Viticulture
SP 245
OP 247
DO 10.5344/ajev.1985.36.3.245
VO 36
IS 3
A1 T. H. E. Cottrell
A1 B. L. Jelus-TYROR
A1 R. Saracino
A1 L. Fuller-PERRINE
YR 1985
UL http://www.ajevonline.org/content/36/3/245.abstract
AB The Cash still method commonly used in small wineries for the determination of volatile acidity has been re-examined for ways to improve accuracy, precision, and speed for both still and sparkling wines. A new method involves the addition of hydrogen peroxide in sufficient quantity to oxidize all the anticipated free SO2, but at a low enough concentration to avoid the production of other volatile compounds. This procedure has been tested and verified by our laboratory and others against other accepted, published techniques. The modified procedure produced more uniform results in the presence of excessive amounts of free SO2 and CO2.