Biological, Chemical and Physical Hazards

Question 1

What is Biological contamination? What 5 things could it be?

Answer 1

1.This is when food is contaminated by pathogenic bacteria such as E coli, Salmonella..Usually associated with faecal contamination from animals or others such as Listeria which is commonly found in contaminated soil. 2.Naturally occurring plant toxins. 3.Fungal contamination such as mould. 4.Parasites and 5. Viruses

Question 2

What is Chemical contamination? What 3 things could it be?

Answer 2

This is when food is contaminated by chemical substances such as 1.Pesticides, Herbicides, Fungicide residues. 2.Heavy metals e.g. aluminium, zinc, lead.3.Mineral oils e.g. diesel, grease.

Question 3

What is Physical contamination? What 3 things could it be?

Answer 3

This is when a visible contamination occurs, having physical components in food such as 1.Glass, metal, stones. 2.Wood and twigs. 3.Pieces of bone and plastic