Level 2 Food Hygiene Certificate Food Contamination 3 — Questions and Answers
Question 1: Which of the following best describes the difference between a food allergen reaction and food intolerance?
- Allergies are always fatal; intolerances are never serious
- An allergic reaction involves the immune system; an intolerance does not and is generally less severe (Correct answer)
- Intolerances require a doctor's diagnosis; allergies do not
- Allergens only affect children; intolerances only affect adults
Correct answer: An allergic reaction involves the immune system; an intolerance does not and is generally less severe
A food allergy involves the immune system producing an IgE-mediated response which can be severe or life-threatening (anaphylaxis). Food intolerance does not involve the immune system and is generally less severe, causing digestive symptoms.
Question 2: Anaphylaxis is a life-threatening allergic reaction. Which of the following is NOT a symptom?
- Swelling of the throat and tongue
- Difficulty breathing
- A slow, steady pulse (Correct answer)
- A sudden drop in blood pressure
Correct answer: A slow, steady pulse
Anaphylaxis typically causes a rapid, weak pulse (not slow and steady), along with swelling of the throat, difficulty breathing, and a sudden drop in blood pressure. A slow, steady pulse is not a symptom.
Question 3: Which of the following practices would INCREASE the risk of cross-contamination in a kitchen?
- Using separate chopping boards for raw meat and salad vegetables
- Storing raw meat above ready-to-eat food in the fridge (Correct answer)
- Washing hands between tasks
- Using dedicated utensils for allergen-free meals
Correct answer: Storing raw meat above ready-to-eat food in the fridge
Storing raw meat above ready-to-eat food is a major cross-contamination risk because juices from raw meat can drip onto food below. Raw meat should always be stored on the lowest shelf.
Question 4: Which of the 14 allergens is naturally present in fish such as cod, tuna, and salmon?
- Crustaceans
- Fish (Correct answer)
- Molluscs
- Celery
Correct answer: Fish
Fish (such as cod, tuna, haddock, and salmon) is one of the 14 major allergens listed in UK food law. It is distinct from crustaceans and molluscs, which are separate allergens.
Question 5: What is the MOST important reason for keeping raw meat on the lowest shelf of a refrigerator?
- To keep it at the coldest temperature in the fridge
- To prevent blood and juices dripping onto ready-to-eat foods below (Correct answer)
- To make it easier for staff to reach
- To comply with FIFO stock rotation rules
Correct answer: To prevent blood and juices dripping onto ready-to-eat foods below
Raw meat is stored on the lowest shelf primarily to prevent its blood and juices from dripping down onto ready-to-eat foods, which would cause cross-contamination with dangerous bacteria such as Salmonella and E. coli.
Question 6: Which of the following is an example of physical contamination?
- Salmonella in undercooked chicken
- A fingernail found in a bread roll (Correct answer)
- Cleaning chemical residue in a mixing bowl
- Histamine in poorly stored fish
Correct answer: A fingernail found in a bread roll
A fingernail in a bread roll is a physical contaminant — a foreign body that has entered the food. Physical contamination involves solid foreign objects in food.
Level 2 Food Hygiene Certificate Food Contamination 3
Which of the following best describes the difference between a food allergen reaction and food intolerance?