Sanitation, Safety, and Environmental Management
Core concepts
Know the biological, chemical, and physical hazard categories and the five-step HACCP logic: hazard analysis, critical control points, critical limits, monitoring, corrective action, verification, and recordkeeping. Understand the temperature danger zone (41 to 135 F), the two-hour/four-hour cumulative rule, cooling from 135 to 70 F within two hours and to 41 F within six total hours, and reheating to 165 F. Know handwashing, glove use, cross-contamination controls, and the difference between cleaning and sanitizing. Understand integrated pest management, waste reduction, water and energy conservation, and safe chemical storage.
Traps in questions
Stems often ask which action is first after a temperature violation, or which control is a CCP versus a prerequisite program. Remember that a CCP must be measurable and tied to a critical limit. Another trap is confusing sanitizing concentration with contact time, or choosing a cooking endpoint when the question is about cooling. Also watch for questions about who is responsible: the person in charge, not the newest employee.
Worked example
A batch of soup is at 90 F after two hours of cooling. The critical limit is 70 F within two hours. The corrective action is to reheat to 165 F and restart cooling, or discard. Rule of thumb: when a critical limit is missed, act on the product first, then document and investigate.