Sanitation, Safety, and Food Handling
Core Concepts
Food safety is non-negotiable. Key concepts: HACCP (Hazard Analysis Critical Control Point) principles, temperature danger zone (4°C–60°C / 40°F–140°F), cross-contamination prevention, personal hygiene, proper cleaning and sanitizing, and allergen management. Also, time-temperature control for potentially hazardous foods (PHFs) and FIFO (First In, First Out) inventory rotation.
Common Traps
- Confusing cleaning (removing soil) with sanitizing (reducing pathogens).
- Incorrect cooling methods: foods must be cooled from 60°C to 21°C within 2 hours and to 4°C within 6 hours total.
- Reheating leftovers only once to 74°C (165°F) within 2 hours.
- Bare-hand contact with ready-to-eat foods.
- Allergen cross-contact via shared equipment.
Worked Example / Rule of Thumb
Two-stage cooling: Use ice baths, shallow pans, or blast chillers. Rule of thumb: Keep hot foods hot (>60°C/140°F) and cold foods cold (<4°C/40°F). FIFO: Store new items behind old; label with date. Handwashing: 20 seconds with soap and warm water.
Sanitizer concentration: Chlorine 50–100 ppm; quaternary ammonium 200–400 ppm; test with strips.