## 1. You Cannot Determine Contaminated Food Just By Looking and Smelling!
It's
impossible to tell if foods are contaminated with bacteria just by
smelling or looking at them. They may appear fine but you can still get
sick.
This
is because most bacteria that cause food poisoning (e.g. salmonella,
and E. coli) don't produce smell or any changes in appearance of the
food.
Remember,
don't be overconfident with your five senses when it comes to your
foods. You just can't trust them when you're trying to determine
contaminated or spoiled foods.
One bacterium can multiply to thousands of millions in just a few hours.This
means that a small amount of bacteria in a contaminated food will
surely spoil it quickly under right conditions so please exercise
caution.
## 2. Heating Foods Does Not Guarantee Food Safety
Don't get overconfident when heating foods. Even
a properly prepared or cooked food is not a guarantee that it won't
spoil quickly. You can still get food poisoning if you let it stand too
long under improper storage temperatures!
The most common cause of this type of food poisoning is due to the bacteria"Clostridium perfringens". C. perfringens bacteria form spores that can withstand high cooking temperatures. When foods are kept at improper storage temperatures, the spores present will sprout and begin to grow to dangerous levels.
The dangerous storage temperature zone is between 20 to 55 degrees Celsius (70 to 130A??F). Food
poisoning can result in as fast as 8 hours once the food contaminated
with large numbers of clostridium perfringens is consumed.
Although
Clostridium perfringens does not cause food poisoning when they're in
small amounts, it can still induce food poisoning once the contaminated
food is reheated. This is because Clostridium perfringens can only grow
vigorously in conditions of very little or no oxygen. More heat means
less oxygen.
To
prevent the growth of Clostridium perfringens, the food must be cooled
to below 20 degrees Celsius (70A??F) within 2 hours after cooking. For
example, after cooking stew or curry, when storing them, it is
recommended that you transfer them to smaller containers then place them
in the refrigerator, especially during summer season. Always remember
that Clostridium perfringens cannot grow under freezing temperatures or
refrigeration.
## 3. Hand Hygiene: A Common Pitfall
One of the basics of food poisoning prevention is "hand washing". It is one of the most important things when it comes to food preparation yet it is also one of the most commonly ignored.
Bacteria
can attach to any parts of your hands all the way from the crevices and
skin folds up to the tip of your nails. Therefore, bacteria can still
spread through every surface of your hands if you don't wash your hands
well.
Experts recommend 20 seconds of proper hand washing with soap and water.