Colonies of molds and yeasts should be apparent within 5 days of incubation. Colonies of yeasts appear pink due to uptake of rose bengal. Determine the yeast or mold count by counting the number of colonies appearing on those plates containing 30 to 300 colony forming units and multiplying that number by the dilution factor. Results may be reported as yeast or mold count per gram or milliliter of sample, as applicable. Appropriate references may be consulted for further information.12-14