Food Safety
September/October 2002
Vital
for food safety - hygiene & care in premises
leanliness and the layout of your premises will affect food safety.
Many factors can affect the ultimate cleanliness of your
premises. Such things as the types and coatings of surfaces that the
food comes into contact with as well as the age of these surfaces can
make a difference to the safety of the product.
Older surfaces with, for example, missing or cracked tiles
and broken vinyl, can be difficult to clean and sanitise effectively.
Cracks can harbour dirt and bacteria. When food comes into contact with
such surfaces the dirt and bacteria can be transferred to the product.
If this happens in the packaging area it can be dangerous as bacteria
transferred to a ready-to-eat product is unlikely to be killed by any
other consumer action such as cooking. When eaten, the contaminated
food can cause illness.
Any damaged surfaces need to be replaced as soon as possible.
Replace cracked and damaged tiles, grout that has dislodged over the
years, missing sealant where benches join, laminated edges of wooden
benches where the wood or chip board is exposed. All of these can allow
bacteria to be transferred to food. Rusty metal also needs to be replaced
as the pitted surface can harbour dirt and bacteria.
Another factor that makes for easier cleaning (and let's
face it - if it's easier, people are more likely to do it) is having
coving rather than 90 degree angles where surfaces join. Coving is the
curved surface that joins a flat surface to the adjoining upright surface.
See your local hardware store for ideas on how to achieve this.
Sanitise
to Kill Bacteria
Ensure that the equipment and preparation surfaces are
clean and sanitised. Most businesses clean but many are unaware of sanitising.
Sanitising will kill the bacteria on a surface and reduce them to a
safe level - provided initial cleaning has been completed effectively.
To clean effectively:
1.
Scrape down surfaces to remove as much foreign matter as possible;
2.
Use a detergent with hot water to remove foreign matter and dirt, and
dissolve grease;
3.
Rinse and then sanitise the clean surface.
There are some all-in-one sanitising and detergent products,
but you still need to complete the same number of steps to make the
surface ready to use for food again. You still have to scrape, dissolve
grease and remove dirt, rinse and then kill bacteria. To select a good
detergent or sanitiser use products approved by AQIS .
Layout
for Safe Food
The manner in which work is conducted and product travels
around your premises can affect the final outcome of your food product
- that is - 'safe food'. If you have raw food received and transferred
to the coolroom passing through the cooking and packaging areas, there
is always the possibility that the finished product may become contaminated
by the raw product.
The thing to remember is that the cooked/finished product
has been through what is called a 'kill step' where harmful bacteria
in the raw product were killed by the cooking process. Bacteria may
be transferred back to the finished product as easily as someone putting
a pack of raw meat on the packing bench for a moment to open the coolroom
door. Bacteria in the juices from the raw product can then be transferred
to the cooked product and if allowed to multiply, can cause illness.
Temperature
Control
We would all like to think that it is an ideal world where,
at every stage, people treat food properly and the food stays in temperature
control at all times. But it's not. Product is temperature abused at
many stages. As food handlers, the only time we have control over the
product is while we are in charge, so, during that time make sure that
it is not temperature abused.
Extending shelf life is something we all would like to
be able to do. It CAN be done. Shelf life has been extended in some
traditional industries once thought impossible. This has been done with
the simple approaches of keeping things clean and keeping things cold.
When these two factors were controlled to the best of the business's
ability the shelf life of their product was extended dramatically. This
outcome made customers happy and business expanded.
So you see, keeping food safe is not only vital but can
have added advantages as well.
By: Len Wallace. HLP Controls Pty Ltd
- Food safety Consultants - registered Food Safety System Facilitators
with the Quality Society of Australasia. For further information phone
1800 500 160.