26 I Healthy Canteen Kit – Canteen Manual
Food preparation
Two important elements of food preparation
are temperature control and the prevention of
cross-contamination.
Temperature control
Bacteria that commonly cause food poisoning
grow quickly in temperatures between 5˚C and
60˚C – commonly known as the temperature
danger zone. It is very important to limit the time
high-risk foods spend in the danger zone. High-risk
foods have common features that most bacteria
need to grow. Such foods contain protein and are
usually moist or wet, for example meat, poultry,
dairy products, eggs, smallgoods, seafood,
cooked rice, cooked pasta, prepared salads,
coleslaw, pasta salads and fruit salads. There
are a number of precautions that can be taken to
decrease the risk of food poisoning.
Make sure food is thoroughly cooked or
reheated and that the centre has reached 75˚C
– cooking food over 75˚C kills most of the
bacteria.
Ensure that cold food is stored below 5˚C.
Ensure that frozen food is stored below minus
15˚C.
Ensure that hot food is maintained over 60˚C.
Minimise the time that food is kept in the
temperature danger zone – between 5˚C
and 60˚C.
Avoid leaving food that has just been cooked
out on the bench to cool for more than one
hour. Once it has cooled, immediately place
it in the refrigerator. Food Safety Victoria
recommends when cooling hot, high-risk
foods that they are cooled from 60˚C to 21˚C
within two hours and to 5˚C within a further
four hours.
Cross-contamination
Cross-contamination occurs when germs that
are naturally found on raw food move or are
transferred onto cooked food. To prevent this,
cooked foods and raw foods should be stored
separately.
Hint: Designate shelves in refrigerators for
specific foods and label these. Raw meats should
be well-wrapped and stored on trays on a shelf
below fruit and vegetables to avoid juices dripping
on the food and causing cross-contamination.
Receiving food
Ensure that supplied perishable foods are being
transported in a refrigerated food vehicle or
container. Check the temperature of deliveries
on arrival.
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Check deliveries of dry goods for quality.
Broken packaging and damage may mean the
contents are contaminated and therefore not
suitable for consumption.
Preparing food
Ensure that benches are clean.
Ensure that there are suitable areas for food
preparation,
Keep animals out of food preparation areas.
Use separate chopping boards and utensils
for raw and cooked foods.
If possible, use separate areas to prepare raw
and cooked foods.
If you cannot have separate areas, ensure that
the bench is washed with hot soapy water
and sanitised with a commercial sanitiser after
preparing raw foods and before preparing
cooked foods.
Rinse raw fruit and vegetables well in plain
water and remove visible dirt particles.
Handling food
Use separate cleaning cloths for raw and
cooked food preparation areas.
Avoid handling food with bare hands. Wearing
disposable gloves or using a kitchen utensil
is preferable. Change disposable gloves as
regularly as you would wash your hands.
Always put on new gloves between handling
raw foods and ready-to-eat foods.
Remove gloves when handling money or non-
food objects.
Cooking and heating
When cooking or reheating high-risk foods,
make sure the centre of the food is thoroughly
heated and has reached 75°C.
Meat is not properly cooked unless the juices
run clear.
When reheating food, ensure that it is brought
to the boil and simmered for at least five
minutes. The centre of the food must reach
75°C.
Thaw frozen food on the bottom shelf of the
refrigerator and keep it in the refrigerator until it
is ready to be cooked.
If food is to be cooked from a frozen state,
take extra care to ensure that it is cooked right
through.
When using a microwave oven to thaw food,
be aware that the food must be cooked
immediately afterwards.
Be aware that microwave ovens can heat
unevenly. If using a microwave for cooking and
heating, stir the food regularly and ensure that
heat is evenly distributed.
Never refreeze food that has been thawed.
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