When our food or food handling practices make us ill. Food
Poisoning
Slide 2
What is food poisoning? Food poisoning is a serious health
problem caused by poor personal hygiene on the part of: Food
handlers Poor storage of food, or Cross contamination indirect
contamination of food caused by contact with a raw food or non food
sources such as clothers, cutting boards or knives.
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Symptoms? Vomiting Diarrhoea Stomach cramps. Those with serious
health problems, young children and the elderly, food poisoning can
result in death.
Slide 4
Activity With a partner develop a list of 4 rules to follow in
order to prevent food poisoning. Explain why this is an important
rule! Personally, answer the following in your workbook (reverse of
a printed page!) When in the kitchen, I need to improve my personal
hygiene practices by......
Slide 5
With a partner develop a list of 4 rules to follow in order to
prevent food poisoning. Explain why this is an important rule!
RuleWhy? Wash Hands before handling food To remove bacteria from
hands. Use food only till use by dateHigher likely hood of illness
incurring after due date. Use a spoon to taste foodAvoid cross
contamination of bacteria being passed into the food. Keep
refrigerated items in fridge To keep found stored safely as
required to prevent bacterial growth. Clean up before you
startRemove any previous bacteria Stack food correctly in
fridgeAvoid cross contamination, and food requires different
coldness to prevent bacterial growth. Always use a clean
knifePrevent cross contamination between ingredients.
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How do bacteria grow? Food poisoning bacteria can grow and
multiply very quickly in the right conditions. The following
factors can affect the growth of bacteria: Time Temperature Food
Moisture Oxygen Acidity pH level. Good exam question!
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Did you know? Over 5 million cases of food poisoning could be
avoided in Australia each year if all food handlers followed three
simple steps: 1. Control temperature 2. Kill harmful bacteria 3.
Prevent Cross Contamination.
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Conditions for the growth of bacteria Food Food contains the
nutrients that bacteria needs to grow. Oxygen Bacteria need oxygen
to survive Acidity (pH) Low acid foods provide the best environment
for bacteria Moisture A moist environment will promote bacteria
growth Temperature Bacteria do not like to be hot or cold. Time One
bacterium can multiply to become 17 million in 8 hours.
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Step 1: Control Temperature
www.betterhealthchannel.vic.gov.au
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Activities. Develop a list of foods that are likely to be
cooled and then reheated: In the school kitchen At home. Look at
the list of foods that you have developed. Use you knowledge of
food groups and suggest the types of foods that are potentially
hazardous. Make a list of safe ways to rapidly cool food. Reheating
foods also increases the risk of bacteria. Food poisoning bacteria
start multiplying when chilled food is reheated at 5.c At what
temperature will bacteria multiply?
Step 2: Kill harmful bacteria In order to kill harmful bacteria
it is important to cook food properly. When cooking meat products
like: Chicken Mince Meat with bones Hamburgers Stuffed meats
Sausages It is important that they are thoroughly cooked and that
the meat juices run clear.
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Step 3: Prevent Cross Contamination Bacteria can spread if raw
meat or poultry touches or drips onto ready-to-eat foods. This is
dangerous because ready to eat foods often receive no further
cooking, therefore the bacteria is not killed. To prevent cross
contamination it is important to: Separate raw and cooked foods.
Store raw foods covered at the bottom of the fridge Keep the
kitchen utensils clean Wash hands with soap, rinse and dry
thoroughly before and after preparing raw food.
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Lets Review Explain how food poisoning occurs. What are the
symptoms of food poisoning? Who is most at risk of these symptoms?
List the conditions required for the growth of bacteria. Suggest
and explain 3 ways that food poisoning can be prevented. What is
the temperature zone? How can this be an issue for the growth of
bacteria? Good exam questions!
