Retail Food Safety study materials
Retail Food Safety study resources

Retail Food Safety cheat sheet

Retail Food Safety · Keep the key ideas within reach.

Quick reference

Foodborne Illness and Food Safety Hazards

  • Biological hazards (bacteria, viruses, parasites) cause most foodborne illness; bacterial pathogens multiply rapidly in the temperature danger zone (41°F–135°F).

  • The Big Six pathogens (Shigella spp., Salmonella Typhi, E. coli O157:H7, Norovirus, Hepatitis A, nontyphoidal Salmonella) require exclusion of infected food handlers.

  • Spore-formers (Clostridium botulinum, Bacillus cereus) survive cooking; C. botulinum toxin is destroyed by boiling for 10 minutes.

  • Chemical hazards include cleaning agents, sanitizers, and toxic metals (e.g., zinc from galvanized containers) leaching into acidic foods.

  • Physical hazards include glass, metal, bone, and plastic; prevent by inspecting equipment and using detectable bandages.

  • Foodborne intoxication results from toxins preformed in food (e.g., Staphylococcus aureus); infection requires live pathogen ingestion.

  • Norovirus is highly contagious and spread by infected handlers, contaminated water, and ready-to-eat foods; it is not killed by freezing.

  • FATTOM: Food, Acidity, Temperature, Time, Oxygen, Moisture-conditions bacteria need to grow; control time and temperature to limit growth.

Quick reference

Personal Hygiene and Employee Health

  • Handwashing procedure: wet hands, apply soap, scrub 10–15 seconds, rinse, dry with single-use towel; required before food contact and after restroom use.

  • Hand sanitizers are not a substitute for handwashing; they are ineffective on dirty hands and do not kill Norovirus.

  • Food employees must report to the person in charge: vomiting, diarrhea, jaundice, sore throat with fever, or infected wound on hand.

  • Exclude food employees with Norovirus, Hepatitis A, Shigella, Salmonella Typhi, or E. coli O157:H7 from the operation; notify regulatory authority.

  • Restrict (not exclude) employees with vomiting/diarrhea or sore throat with fever from working with exposed food or clean equipment.

  • Single-use gloves do not replace handwashing; change gloves when torn, soiled, or switching tasks, and wash hands before donning.

  • Proper attire: clean uniform, hair restraint, no jewelry on hands/arms (except plain band ring), and no eating/drinking in food prep areas.

  • Illness symptoms must be reported; the person in charge must exclude or restrict based on pathogen and symptom.

Quick reference

Safe Food Handling and Time-Temperature Control

  • Temperature danger zone is 41°F–135°F; limit time in this zone to 4 hours cumulative for TCS foods.

  • Cooking temperatures: poultry 165°F for 15 seconds; ground meat 155°F for 17 seconds; whole meat 145°F for 15 seconds; fish 145°F for 15 seconds.

  • Cool TCS foods from 135°F to 70°F within 2 hours, and from 70°F to 41°F within an additional 4 hours (total 6 hours).

  • Reheat TCS foods to 165°F for 15 seconds within 2 hours; do not use hot-holding equipment to reheat.

  • Hot-hold TCS foods at 135°F or above; cold-hold at 41°F or below; check temperatures every 4 hours.

  • Thaw food under refrigeration at 41°F or below, under running water at 70°F or below, as part of cooking, or in a microwave immediately followed by cooking.

  • Date marking: ready-to-eat TCS foods held >24 hours must be marked with discard date 7 days from preparation (day 1 = prep day).

  • Use calibrated thermometers; ice-point method: 32°F in ice water; boil-point method: 212°F at sea level.

Quick reference

Cross-Contamination Prevention and Cleaning/Sanitizing

  • Cross-contamination is prevented by separating raw animal foods from ready-to-eat foods during storage, prep, and display.

  • Store raw meat, poultry, and seafood below ready-to-eat foods; use separate cutting boards and utensils.

  • Clean and sanitize food-contact surfaces after each use, after switching tasks, and after 4 hours of continuous use.

  • Sanitizer concentrations: chlorine 50–100 ppm; quaternary ammonium 200–400 ppm; iodine 12.5–25 ppm; test with appropriate test strips.

  • Manual warewashing: wash in 110°F+ water with detergent, rinse, sanitize in 77°F+ water (or per sanitizer label), air dry.

  • Mechanical warewashing: wash 150°F–160°F, rinse 165°F+ for 10 seconds (or sanitizer rinse per label).

  • Cleaning removes soil; sanitizing reduces pathogens to safe levels; both are required on food-contact surfaces.

  • Avoid cross-contamination from cleaning tools: store wiping cloths in sanitizer solution and use separate cloths for raw and ready-to-eat areas.

Quick reference

Facility Design, Equipment, and Pest Control

  • Food-contact surfaces must be smooth, nonabsorbent, corrosion-resistant, and easy to clean; equipment must be NSF or equivalent.

  • Handwashing sinks must be conveniently located, supplied with hot/cold water, soap, and single-use towels; used only for handwashing.

  • Floors, walls, and ceilings in food prep areas must be smooth, durable, and cleanable; coving at floor-wall junctions.

  • Ventilation: hoods must be sized and maintained to remove grease, smoke, and condensation; filters cleaned regularly.

  • Pest control: seal openings >1/4 inch, install self-closing doors and air curtains, and maintain exterior lighting away from doors.

  • Integrated pest management (IPM) uses prevention, monitoring, and targeted control; pesticides must be applied by licensed applicators and stored away from food.

  • Garbage containers must be leak-proof, covered, and cleaned; outdoor receptacles on smooth surfaces with tight-fitting lids.

  • Lighting in food prep areas must be shielded or shatter-resistant; minimum 50 foot-candles at food prep surfaces.

Quick reference

Purchasing, Receiving, and Supplier Verification

  • Purchase food only from approved suppliers; verify they are licensed and inspected by the regulatory authority.

  • Receiving temperatures: cold TCS foods at 41°F or below; frozen foods solid; hot foods at 135°F or above; reject if out of range.

  • Reject deliveries with signs of pest infestation, damaged packaging, or missing labels; check dates and condition.

  • Shellstock tags must be kept for 90 days from the date the last shellfish is sold or served.

  • Supplier verification includes reviewing invoices, inspecting delivery vehicles, and confirming HACCP compliance for high-risk foods.

  • Milk and dairy must be pasteurized; eggs must be received at 45°F or below and stored at 41°F or below.

  • Check food labels for allergens, ingredients, and net weight; do not accept home-canned or uninspected foods.

  • Receiving area must be clean, well-lit, and equipped with calibrated thermometers and sanitized probes.

Quick reference

HACCP and Active Managerial Control

  • HACCP seven principles: hazard analysis, determine CCPs, establish critical limits, monitor, corrective actions, verification, record keeping.

  • Active managerial control (AMC) is the operator's proactive system to control foodborne illness risk factors; it includes written procedures and monitoring.

  • Critical limits are measurable (e.g., 165°F for 15 seconds); monitoring frequency must ensure control.

  • Corrective actions must be taken when monitoring shows a deviation; document the action and disposition of food.

  • Verification includes calibrating thermometers, reviewing records, and conducting internal audits.

  • Record keeping: maintain temperature logs, cleaning schedules, and training records for at least 90 days or as required.

  • HACCP plans are required for specialized processes (e.g., smoking, curing, sous vide, reduced-oxygen packaging) and must be approved by the regulatory authority.

  • AMC requires a certified food protection manager on staff and training for all food employees.

Quick reference

Regulatory Compliance and Food Safety Management

  • FDA Food Code is the model for state and local regulations; the most recent version may be adopted with modifications.

  • A certified food protection manager must be on staff during operating hours; certification from an accredited program.

  • Food establishment permits must be posted; inspections are conducted by the local health department.

  • Imminent health hazards (e.g., sewage backup, no hot water, pest infestation) require immediate closure and notification.

  • Employee training must cover food safety principles, personal hygiene, and reporting responsibilities; document training.

  • Regulatory inspections evaluate risk factors: improper holding, inadequate cooking, contaminated equipment, poor personal hygiene, unsafe sources.

  • HACCP and AMC plans must be available for inspection; records must be retained per regulation.

  • Self-inspections and corrective actions demonstrate active managerial control and reduce risk of violations.