CAUSES OF CONTAMINATION

Question 1

PHYSICAL CONTAMINATION DEFINITION

Answer 1

Foreign substances that enter the food during production, delivery, storage or preparation and service

Question 2

PHYSICAL CONTAMINATION EXAMPLE

Answer 2

• Glass
• Human or animal hair
• Plastic/metal shavings (packaging,sharp knives)
• Insects
• Bandaids/gloves
• Jewellery
• Fingernail clippings (nail polish)

Question 3

PHYSICAL CONTAMINATION PREVENTION METHODS

Answer 3

• Wearing gloves over bandaids
• Maining high standards of personal hygiene
• Minimising jewellery
• Not using chipped crockery
• Wearing a hair net

Question 4

CHEMICAL CONTAMINATION DEFINITION

Answer 4

Caused by the presence of chemicals in food. This can occur due to sanitisers not being rinsed thoroughly or fruit/veggies not being washed thoroughly

Question 5

CHEMICAL CONTAMINATION EXAMPLE

Answer 5

• Pesticides, insecticides

- Cleaning agents and naturally occurring toxins that have entered food during the production cycle

Question 6

CHEMICAL CONTAMINATION PREVENTION METHODS

Answer 6

• Ensuring all fruit and veg are washed to avoid pesticides
• Rinsing all dishes after chemical cleaning
• Frequent disposal of rubbish
• Keeping cleaning products in a seperate location

Question 7

MICROBIOLOGICAL CONTAMINATION DEFINITION

Answer 7

When a food has been contaminated by microorganisms, including bacteria, viruses, mould, fungi, and toxins

These include naturally poisonous foods

Question 8

MICROBIOLOGICAL CONTAMINATION EXAMPLE

Answer 8

• Mushrooms

- Moulds/ yeasts (natural toxin)

Question 9

MICROBIOLOGICAL CONTAMINATION PREVENTION METHODS

Answer 9

• Disposing of all mouldy products

- Sufficient storage to the particular food