Food may be considered spoiled when when it is undesirable or unfit to eat.
spoilage of food may be caused by: decomposition, pest infestation, physical damage, chemical contamination.
decomposition is due to micro-organisms (such as bacteria, mould and yeasts) and enzymes (cause chemical reactions).
physical damage example: bruising on an apple, caused by food not being packaged appropriately.
chemical contamination example: when foods are tainted by strong-smelling cleaning chemicals.
Signs of food spoilage: appearance (discolouration, mould, blown packaging).
Signs of food spoilage: smell (sometimes like rotten eggs, caused by proteins breaking down).
Signs of food spoilage: texture/ taste
It is important to measure the core temperature of any high risk food that is under refrigeration or being cooked, reheated, cooled or defrosted.
A temperature taken anywhere else may give you a false reading, so always take the temperature at the thickest part of the food.
air temperatures may not be the same as food temperatures.
the surface temperature of food may be warmer or cooler than the temperature in the centre (core) of the food.
cooking is a critical stage of the food process because it is when harmful bacteria and viruses can be destroyed and the food made safe.
If food is not cooked properly, harmful bacteria and viruses may not be destroyed and these could cause food borne illness.
cooked foods which you intend to chill and use later must be cooled to 5°C or below as quickly as possible (within 1-2 hours).
The less time that food spends between 63°C and 5°C during cooling, the less opportunity there is for harmful bacteria to multiply.
Toxins: poisonous substances in food produced by some bacteria
Toxins: can be heat resistant and survive the cooking process so its important to prevent toxins being produced in the first place.
Toxins: some toxins affect the nervous systems and may even cause death.
types of protective clothing: hairnets, beard snoods, hats, aprons, overalls, chef whites, footwear - to prevent outside contamination being brought into the food preparation area.
you must tell your supervisor or manager if you have had food-borne illness, been in close contact with someone who has or has had similar symptoms. (being sick or having diarrhoea). Before you turn up to work.
if you have uninfected cuts and sores, you can continue to work if it is completely covered with a clean plaster that is: waterproof and brightly coloured - usually blue.
plasters: they need to be waterproof to prevent blood and bacteria from the cut contaminating food.
Plasters: need to be brightly coloured so that they may be easily spotted if dropped in food.
when to wash hands: before starting work and handling food
when to wash hands: between handling raw food and high-risk or other ready-to-eat food.
when to wash hands: after - handling raw foods and known allergens, handling contaminated packaging and many more
HACCP - stands for "hazard analysis critical control point"
HACCP - is an internationally recognised food safety management system that helps businesses to identify, assess and control significant hazards that may effect food safety.
HACCP controls significant hazards by locating all the points in a food process where hazards could occur.
HACCP controls significant hazards by deciding which points are critical to the safety of the end product.
HACCP controls significant hazards by focussing control on these critical points.
HACCP helps to prevent potential food safety problems.
HACCP is not a stand-alone system. Before you can begin to implement an effective HACCP system and establish procedures for the control of specific hazards, there needs to be:
a safely designed establishment, adequate facilities, correct equipment.
HACCP - Also, procedures covering the general principles of hygiene must first be in place and operational – known as ‘prerequisite procedures’.
Best before dates appear on less perishable foods that have a long shelf life, such as: canned, dried or frozen products.
Use by dates are found on perishable foods with a short shelf life, and that are considered high risk foods. E.g., meat/fish/dairy - they require chilled storage.
Stock rotation is a way of ensuring that all produce is used and there is no food wastage - e.g., milk delivery - the knew produce would go behind the old produce on the shelf.
SAFE FOOD STORAGE - checking dates on food when it is delivered storing food with a short shelf life at the front of the shelf so that it will be used first, and storing food with a longer shelf life at the back.
safe food storage - checking that food is in good condition and packaging is intact before selecting it removing any out-of-date stock from display, and disposing of it as a waste product so that it cannot re-enter the food chain.