Food Safety and Sanitation
Food Safety and Sanitation
This domain tests HACCP, temperature control, personal hygiene, cleaning and sanitizing, and response to foodborne illness risk. Items often ask you to identify a critical limit or choose a corrective action.
Core rules and concepts
- HACCP has seven principles: hazard analysis, determine critical control points (CCPs), set critical limits, monitor, establish corrective actions, verify, and keep records.
- TCS foods must stay out of the temperature danger zone, 41°F–135°F. Cold holding is ≤41°F; hot holding is ≥135°F.
- Cooling: 135°F to 70°F within 2 hours, then 70°F to 41°F within 4 more hours. Reheat for hot holding to 165°F for 15 seconds within 2 hours.
- Calibrate thermometers at ice-point (32°F) and boiling point (212°F at sea level). Wash hands for at least 20 seconds.
- Clean removes soil; sanitize reduces microorganisms. Follow label concentration and contact time (for example, chlorine often 50–100 ppm).
- The "Big Six" pathogens require exclusion or restriction: Salmonella Typhi, Shigella, Shiga toxin-producing E. coli, hepatitis A, norovirus, and nontyphoidal Salmonella.
Worked example
Chili is at 70°F after 2.5 hours of cooling. The critical limit is 70°F by 2 hours, so the batch is out of control. Corrective action: reheat rapidly to 165°F and restart rapid cooling, or discard if quality or safety is doubtful. Record the deviation, action, and verification. Do not simply move the pot to a colder walk-in and assume it will catch up.
Traps
Believing freezing kills pathogens; using the outdated 40–140°F range; measuring sanitizer concentration without contact time; allowing bare-hand contact with ready-to-eat food; and documenting temperatures without corrective action when limits are missed.