Unit 2 - Taking Care Of Your Food Flashcards
What is the definition of contamination
When something gets into food that shouldn’t be there eg-microorganisms of solid matter
Definition of bacteria
A microorganism, a living thing
Definition of food hygiene
Insuring food is safe to eat
What is a microorganism
Tiny living things, so small you need a microscope to see them
What is food poisoning usually caused by
A microorganism called bacteria
What else can food poisoning be caused by
Mould
Where does mould grow
On the surface of food
What does mould look like
Furry
What should happen to mouldy food
It should be thrown away
What foods develop mould of they store for too long or are stored incorrectly
Bread, cheese, grapes and oranges
Not all microorganism are….. Some are very……..indeed
Harmful
Useful
Bacteria mould or yeast?
- bread
- quorn
- yoghurt/probiotic drinks
- blue cheese
- yeast
- fungi
- bacteria
- mould
Bacteria need how many conditions to survive and multiply
4
What type of foods do bacteria prefer to grow on, list some examples of these types of foods
Foods high in protein, vitamins and minerals
- chicken (meat)
- fish
- eggs/milk
- poultry
What does bacteria need to grow
Moisture (water)
Where can bacteria not multiply
In dry foods
When does dry food come ideal for bacteria to breed
When it is reconstituted (water is added)
List some foods that are reconstituted before they are eaten
Custard powder Packet soup Pot noodle Super noodles Bisto gravy granules
What four things do bacteria need to survive and multiply
Food
Moisture
Warmth
Time
Bacteria like to be kept….
Warm
When do bacteria multiply most rapidly
In warm conditions
What happens to bacteria between 64-100 degrees
Bacteria are destroyed
What happens to bacteria between 5-63 degrees
Dangerzone!!!!
Bacteria multiply rapidly
What happens to bacteria between 1-4 degrees (in the fridge)
They are not dead but they multiply slowly
What happens to bacteria at -18 degrees (in the freezer)
THEY DO NOT DIE!!!
They are dormant (sleeping) in the freezer
What does the term dormant mean when talking about bacteria
The bacteria are alive, but are not able to grow, normal function is suspended for a time ie- they can’t grow and can’t multiply
If bacteria are given ideal condition ie- food moisture and warmth AND……………
They have enough time they will multiply rapidly
What can each bacterium divide into once every 20 minutes in ideal conditions
Can divide into two