RT Journal Article SR Electronic T1 A Study of Several Problems of Clarification of Wine with Casein JF American Journal of Enology and Viticulture JO Am J Enol Vitic. FD American Society for Enology and Viticulture SP 137 OP 138 DO 10.5344/ajev.1963.14.3.137 VO 14 IS 3 A1 W. V. Cruess YR 1963 UL http://www.ajevonline.org/content/14/3/137.abstract AB Tannin with casein improved the clarification of wine, confirming the results of earlier studies by O'Neal et al. Bentonite unexpectedly exerted a small but definite effect in reducing color. A pectic enzyme with casein did not materially affect clarification. Casein compared favorably with two carbons in reducing excess color in wine and had less effect on flavor.