Spiral Plate Count Method for the Examination of Raw and Pasteurized Milk C. B. DONNELLY,* J. E. GILCHRIST, J. T. PEELER, AND J. E. CAMPBELL United States Department of Health, Education, and Welfare, Public Health Service, Food and Drug Administration, Division of Microbiology, Cincinnati, Ohio 45226
Received for publication 11 March 1976
The spiral plate count method (SPLPC) was compared with the standard plate count (SPC) method by examining 201 samples of raw and pasteurized milk. Although the means of the two methods differed significantly at = 0.01, the difference was
