Which RTE category relies on a full lethality heat processing step (cooking) to achieve food safety?

• A. Heat Treated-Shelf Stable (HT-SS)
• B. Fully Cooked-Not Shelf Stable (FC-NSS)
• C. Heat Treated but Not Fully Cooked-Not Shelf Stable (HT-NFC-NSS)
• D. Not Heat Treated-Shelf Stable (NHT-SS)

Answer: (B)

The safety hurdle being tested is that the product’s lethality comes from a full cooking step, meaning it has been heated long enough and hot enough to kill pathogens throughout. Because it is not shelf-stable, it still requires refrigeration to prevent post-process growth and maintain safety. This describes fully cooked-not shelf stable, where the cooking step provides the safety guarantee, while lack of shelf stability necessitates cold storage.