FN13: Food Hygiene & Safe Practice
Principles of food hygiene and safe practice in the kitchen, including the 4 Cs, personal hygiene, kitchen design, and safe food preparation and storage.
Food Hygiene & Safe Practice
Principles of food hygiene and safe practice in the kitchen, including the 4 Cs, personal hygiene, kitchen design, and safe food preparation and storage.
Key Fact: The 4 Cs of food safety are: Cross-contamination prevention, Cleaning, Chilling, and Cooking.
Key Fact: Cross-contamination prevention: use separate boards, wash hands after handling raw meat, store raw foods below cooked foods.
Key Fact: Cleaning: wash and disinfect all surfaces, equipment, and hands before and after food preparation.
Key Fact: Chilling: keep the fridge at 0–5°C, the freezer at −18°C or below; never put hot food directly in the fridge.
Key Fact: Cooking: food must reach a core temperature of at least 75°C (UK) or 70°C for 2 minutes (EU); use a food thermometer to check.
Key Fact: Personal hygiene includes: washing hands with soap and warm water, tying back hair, wearing a clean apron, covering cuts with blue waterproof plasters, and not working when ill.
Key Fact: The correct handwashing technique involves: wet hands, apply soap, rub palms, backs, between fingers, thumbs, and wrists for at least 20 seconds, rinse, and dry with a clean towel.
Key Fact: Kitchen design for food safety: separate raw and cooked preparation areas, easy-to-clean surfaces, non-slip flooring, good lighting and ventilation.
Key Fact: Safe food storage: raw meat on the bottom shelf of the fridge, dairy in the middle, cooked foods on top, fruit and vegetables in the crisper drawer.
Key Fact: The 90-minute rule: food should not be left in the danger zone (5–63°C) for more than 90 minutes total; cool cooked food rapidly and refrigerate within 1–2 hours.
📋 Key Vocabulary and Concepts
For Food Hygiene & Safe Practice, you must know:
- 4 Cs
- Cross-contamination
- Disinfection
- Danger zone
- Core temperature
- Blue waterproof plaster
- Handwashing technique
- Stock rotation (FIFO)
- Fridge temperature (0–5°C)
- Freezer temperature (−18°C)
- Food thermometer
- Rapid cooling
❓ Practice Questions
Q: What are the 4 Cs of food safety?
Q: What is the correct fridge temperature range?
Q: Describe the correct handwashing procedure for food handlers.
Q: Why should raw meat be stored on the bottom shelf of the fridge?
Q: What is the 90-minute rule?
Q: Why should hot food not be placed directly in the fridge?
Q: What is stock rotation and which principle does it follow?
Q: What core temperature must food reach to be safe, and how should it be checked?
✅ Answers
- Cross-contamination prevention, Cleaning, Chilling, and Cooking.
- 0–5°C, which keeps food below the danger zone to slow or stop bacterial growth.
- Wet hands with warm water, apply soap, rub palms, backs of hands, between fingers, thumbs, and wrists for at least 20 seconds, rinse thoroughly, and dry with a clean paper towel.
- To prevent raw meat juices from dripping onto ready-to-eat foods below, which would cause cross-contamination.
- Food should not be left in the danger zone (5–63°C) for more than a total of 90 minutes; it should be cooled rapidly and refrigerated.
- Hot food raises the fridge temperature, potentially bringing other stored foods into the danger zone and promoting bacterial growth.
- Stock rotation is organising food so the oldest products are used first. It follows the FIFO principle: First In, First Out.
- Food must reach a core temperature of at least 75°C (UK). It should be checked using a clean, calibrated food thermometer inserted into the thickest part of the food.
🎯 Exam Tips
- Always mention the 4 Cs when asked about food safety — this is a mark-scheme favourite.
- Be specific about temperatures: fridge 0–5°C, freezer −18°C, core cooking temp 75°C, danger zone 5–63°C.
- When asked about personal hygiene, list at least four practices: handwashing, clean apron, tied-back hair, covered cuts, no jewellery, not working when ill.
- For kitchen design questions, focus on how the layout prevents cross-contamination (separate areas for raw and cooked food).
📝 Exam Technique
Food Preparation & Nutrition Exam Tips — Food Hygiene & Safe Practice:
1. For Food Hygiene & Safe Practice questions, show every step of your working clearly — method marks count even if the final answer is wrong
2. Check your answer makes sense in context (estimation, units, reasonableness)
3. Use correct mathematical notation and state formulae before substituting values
4. If a Food Hygiene & Safe Practice question asks you to 'prove' or 'show', write a logical chain of reasoning with a conclusion line
5. For problem-solving, identify the topic first, then recall the relevant method
1. For Food Hygiene & Safe Practice questions, show every step of your working clearly — method marks count even if the final answer is wrong
2. Check your answer makes sense in context (estimation, units, reasonableness)
3. Use correct mathematical notation and state formulae before substituting values
4. If a Food Hygiene & Safe Practice question asks you to 'prove' or 'show', write a logical chain of reasoning with a conclusion line
5. For problem-solving, identify the topic first, then recall the relevant method
⚠️ Common Errors
✗ You can put hot food straight in the fridge. ✓ Hot food should be cooled as quickly as possible (within 90 minutes) before being placed in the fridge, to avoid raising the fridge temperature.
✗ Rinsing raw chicken removes bacteria and makes it safe. ✓ Rinsing raw chicken spreads bacteria around the sink and work surfaces through water splashing, increasing the risk of cross-contamination. Cooking is the only way to kill the bacteria.
✗ A quick rinse under the tap is enough handwashing. ✓ Proper handwashing requires soap, warm water, rubbing all surfaces of the hands for at least 20 seconds, then rinsing and drying with a clean towel.
✗ Food is safe as long as it is cooked. ✓ Food must reach a safe core temperature (75°C), be handled hygienically throughout preparation, and be stored correctly to be safe. Cooking alone does not address cross-contamination or storage risks.
✍️ Model Answer
Full-Mark Response
Explain the 4 Cs of food safety and how each one helps prevent food poisoning. (8 marks)
The 4 Cs of food safety are Cross-contamination prevention, Cleaning, Chilling, and Cooking. Cross-contamination prevention involves keeping raw and ready-to-eat foods separate: using colour-coded chopping boards (e.g. red for raw meat), storing raw meat on the bottom fridge shelf so juices cannot drip onto other foods, and washing hands thoroughly after handling raw foods. This prevents harmful bacteria transferring from contaminated to safe food. Cleaning means washing and disinfecting all surfaces, utensils, and equipment before and after food preparation, as well as maintaining personal hygiene — washing hands with soap and warm water for at least 20 seconds, wearing clean aprons, and covering cuts with blue waterproof plasters. This removes bacteria from surfaces and hands, reducing the risk of transfer. Chilling means keeping perishable food below 5°C in the fridge (or −18°C in the freezer) to slow or stop bacterial multiplication, and following the 90-minute rule so food does not remain in the danger zone (5–63°C) for extended periods. Cooking means heating food to a core temperature of at least 75°C, checked with a food thermometer, to kill most harmful bacteria. Together, the 4 Cs address each stage where food safety can be compromised and form the foundation of safe food practice.
📊 AO Deep Dive
Assessment Objective Analysis
AO1 (Knowledge & Understanding): Demonstrate knowledge and understanding of food hygiene & safe practice, including nutritional principles, food science, and food safety regulations.
AO2 (Application): Apply knowledge and understanding of food hygiene & safe practice to practical cooking contexts, recipe adaptation, and food choice decisions.
AO3 (Analysis & Evaluation): Analyse and evaluate food hygiene & safe practice in relation to nutritional needs, food safety, sustainability, and cultural factors. Justify decisions with reasoned arguments and evidence.
📝 Exam Questions by Topic
- AQA Past Papers - Topic Questions -- AQA
- Edexcel Past Papers - Topic Questions -- Edexcel
- OCR Past Papers - Topic Questions -- OCR
- Eduqas Past Papers - Topic Questions -- Eduqas
🎬 Video Resources
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