A focused quality measurement
Yeast and mold counts can help investigate fermentation, visible growth and other unwanted product changes. They measure recovered fungal populations under the method conditions; they are not a substitute for mycotoxin testing.
Product details that matter
Describe the water activity or moisture characteristics if known, storage conditions, packaging and preservative system. Include when the change appeared and whether it affects one lot or several.
Routine or investigation
For regular checks, submit representative units with consistent lot identification. For a spoilage investigation, include affected and comparison material in separate sealed units.
Interpretation
Compare the result with the agreed specification and product history. Identification can be added when knowing the recovered organism will help define the next question.
Related testing & guidance
Technical & service references
Vanguard microbiology service menuFDA: Bacteriological Analytical ManualUSP: General Chapter <61>Source review: November 8, 2026. The agreed method and project scope govern the testing.