How do we handle, cook and store food so it is safe to eat?
The principles of food safety and hygiene, including personal and kitchen hygiene, preventing cross-contamination, temperature control and the danger zone, food-poisoning bacteria, safe storage, and date marks.
A focused CCEA GCSE Food and Nutrition answer on food safety and hygiene, covering personal and kitchen hygiene, cross-contamination, temperature control and the danger zone, food-poisoning bacteria, safe storage and date marks.
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What this dot point is asking
CCEA wants you to know how to keep food safe: personal and kitchen hygiene, preventing cross-contamination, temperature control and the danger zone, the main food-poisoning bacteria, safe storage, and what date marks mean.
What food safety is
Personal and kitchen hygiene
Cross-contamination
Prevent it by using separate (colour-coded) chopping boards and knives for raw meat, washing equipment between tasks, and storing raw meat at the bottom of the fridge so it cannot drip onto other foods.
Temperature control and the danger zone
| Temperature | What happens |
|---|---|
| Below 5 degrees (fridge) | Bacteria grow very slowly |
| Below minus 18 degrees (freezer) | Bacteria become dormant |
| 5 to 63 degrees (danger zone) | Bacteria multiply quickly |
| Above 75 degrees | Cooking destroys most bacteria |
Food-poisoning bacteria
The main ones to know are salmonella (raw poultry, eggs), campylobacter (raw chicken) and E. coli (undercooked meat). Symptoms include sickness, diarrhoea and stomach pain. They are controlled by hygiene, separating raw and cooked, and thorough cooking.
Date marks
A use by date is about safety: on perishable foods (meat, dairy), and food must not be eaten after it. A best before date is about quality: the food is usually still safe afterwards but may have lost flavour or texture.
Linking to the rest of the course
Food safety builds on food spoilage (controlling the same bacteria) and preservation (safe storage), connects to cooking (heat destroys bacteria) and to food labelling (date marks and storage instructions).
Examples in context
- Example 1. Why chicken must be piping hot
- Raw chicken often carries campylobacter and salmonella, which are only destroyed by thorough cooking. Checking the centre is piping hot and the juices run clear confirms it is safe. This links a bacterium to a control measure.
- Example 2. Colour-coded chopping boards
- Professional kitchens use a red board for raw meat and a green board for salad, so bacteria from raw meat never touch ready-to-eat food. This is a practical control for cross-contamination CCEA rewards.
- Example 3. Cooling leftovers quickly
- Leaving a warm casserole out for hours keeps it in the danger zone, letting bacteria multiply. Cooling it quickly and refrigerating it within a couple of hours keeps it safe. This applies temperature control to a real situation.
Try this
Q1. State the temperature range of the danger zone. [1 mark]
- Cue. 5 to 63 degrees.
Q2. Explain one way to prevent cross-contamination in the kitchen. [2 marks]
- Cue. Use separate chopping boards for raw meat and ready-to-eat food (or store raw meat at the bottom of the fridge).
Exam-style practice questions
Practice questions written in the style of CCEA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
CCEA past-style6 marksExplain how to prevent cross-contamination and food poisoning when preparing a chicken dish.Show worked answer →
Six marks for clear, practical control measures.
Wash hands before handling food, after touching raw chicken, and after using the toilet. Keep raw chicken away from ready-to-eat foods, using separate chopping boards and knives for raw meat (colour-coded boards), and wash equipment and surfaces between tasks.
Store raw chicken at the bottom of the fridge so it cannot drip onto other foods, and keep it below 5 degrees. Cook the chicken thoroughly until it is piping hot all the way through (above 75 degrees) and the juices run clear, to destroy bacteria such as salmonella and campylobacter.
Keep food out of the danger zone (5 to 63 degrees), do not leave it standing warm, and cool leftovers quickly before refrigerating.
Markers reward measures covering personal hygiene, separating raw and cooked, temperature control and thorough cooking.
CCEA past-style4 marksState the temperature danger zone and explain the difference between a use by date and a best before date.Show worked answer →
Four marks: the danger zone plus the two date marks.
The danger zone is between 5 and 63 degrees, the temperature range in which bacteria multiply most quickly, so food should be kept out of it.
A use by date is about safety. It is used on perishable foods such as meat and dairy, and food must not be eaten after this date as it may be unsafe.
A best before date is about quality. After this date the food is usually still safe but may have lost flavour, texture or freshness.
Markers reward the correct danger-zone range and a clear safety versus quality distinction.
Related dot points
- Food spoilage, the micro-organisms that cause it (bacteria, yeasts and moulds), the conditions micro-organisms need to grow, enzymic browning, and the signs that food has spoiled.
A focused CCEA GCSE Food and Nutrition answer on food spoilage, covering the micro-organisms responsible (bacteria, yeasts and moulds), the conditions they need to grow, enzymic browning, and the signs that food has gone off.
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A focused CCEA GCSE Food and Nutrition answer on cooking food, covering the reasons we cook, heat transfer by conduction, convection and radiation, the main cooking methods, and the effects of cooking on appearance, texture and nutrients.
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