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Consistency of a Trained Taste Panel

Eastern Utilization Research and Development Division, USDA, Washington, D. C.

ABSTRACT

A means of determining the reliability of a trained taste panel is to test their consistency of judgments on duplicate samples. Fourteen hundred and twenty-three duplicate sets of research milk samples were tested by 19 judges, for identification and measurement of intensity of off-flavor. The samples were scored on a 10-point scale ranging from 31 to 40. Each of the 17 flavor criticisms is based on a 6-point range. Analysis of data indicates an acceptable degree of consistency in panel performance, even though there is considerable variation among judges. The average absolute differences determined on a monthly basis ranged from 0.10 to 0.39 for a mean of 0.26 for the panel as a whole, whereas, for individual judges the range was 0.41 to 0.80 for a mean of 0.65.