PT  - JOURNAL ARTICLE
AU  - T. H. E. Cottrell
AU  - B. L. Jelus-TYROR
AU  - R. Saracino
AU  - L. Fuller-PERRINE
TI  - Simplification and Improvements in Laboratory Methods for Small Wineries: Methodology for Volatile Acidity Determination
AID  - 10.5344/ajev.1985.36.3.245
DP  - 1985 Jan 01
TA  - American Journal of Enology and Viticulture
PG  - 245--247
VI  - 36
IP  - 3
4099  - http://www.ajevonline.org/content/36/3/245.short
4100  - http://www.ajevonline.org/content/36/3/245.full
SO  - Am J Enol Vitic.1985 Jan 01; 36
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.