In post-lethality exposed RTE products, drying is best described as which type of antimicrobial control?

• A. Agent
• B. Process
• C. Additive
• D. None

Answer: (B)

Drying acts as a processing control by reducing water activity, which slows or stops microbial growth. In post-lethality exposed ready-to-eat products, removing moisture creates an environment where pathogens can’t multiply, so the antimicrobial effect comes from the processing step itself rather than adding a chemical agent. It’s not about introducing an agent or additive; it’s about the manufacturing step that achieves safety through moisture reduction.