The importance of hand-washing
IFST Advisory Statement for Foodlink Food Safety Week 2005
The Institute of Food Science & Technology, through its Public Affairs and Technical & Legislative Committees, has authorised this Advisory Statement, dated 24 March 2005, as an IFST contribution to the 13th Foodlink National Food Safety Week, which runs from 13-19 June 2005, organised by Foodlink.
So, to build on this:
There are several very important practices we can follow and precautions we can take. Here we offer advice on the importance of thoroughly and frequently washing our hands and food contact surfaces.
We are all consumers, but some of us work in food manufacture, in food retailing and in catering, and of course the hand-washing advice is just as important to follow in our work.
First we need to understand the sources of food poisoning micro-organisms (the term often used is "germs" but scientists refer to "pathogens"). They are too small to be seen with the naked eye, and exist harmlessly in many natural environments, for example farmyards and farm animals, poultry and wild birds and on fields that are fertilised with farmyard manure. Animals, and people suffering from food poisoning, can also shed large numbers of these micro-organisms, either through sickness or diarrhoea. Some are carried normally by healthy people (hence the need for hand-washing - see below).
Insects, rodents and other pests (vermin) as well as domestic pets can also harbour pathogens and transfer them from one place to another.
Pathogens can contaminate food; some can multiply at an enormous rate, given favourable conditions, especially of moisture and warmth; and can survive if not properly heated to destroy them.
So "keeping it safe" means measures to
We need to remember sources of contamination, and whenever we come in contact with any of them we need to Stop ¯ Think ¯ and Wash!
Wash hands (and surfaces) thoroughly and frequently
In safety terms, cross-contamination means the transfer of pathogens from one food to another, either directly or indirectly. Our hands and kitchen surfaces are among the main potential causes of direct contamination of foods with pathogens.
We need to wash our hands thoroughly and frequently, before handling food, immediately after handling (for example) raw meat or raw poultry or raw vegetables, and immediately after going to the toilet. Hand-washing should be in hot soapy water, with particular attention to nails, fingertips, between fingers and backs of hands too. Moisten the hands, apply soap, and rub hands together for about 20 seconds before rinsing thoroughly in clean water (young children might be encouraged to recite the whole of "Three Blind Mice" while hand-washing, to judge the time needed).
While preparing foods, avoid touching cats, dogs or other pets, and avoid touching your mouth, nose or hair; but if you accidentally do, Stop – Think – and immediately Wash your hands thoroughly before continuing.
It is also important to dry hands thoroughly after washing, using clean disposable paper towels, not a repeatedly-used cloth.
……and a reminder of the other important safety measures we should take
This Advisory paper is about the importance of hand-washing; but it would be incomplete without reminding ourselves of the range of important measures that make up the "ring of safety" around foods in the home.
1. wash hands and surfaces thoroughly and frequently;
2. prevent cross-contamination of ready-to-eat foods;
3. cook foods properly, to reach at least 70°C at the centre for 2 minutes;
4. store foods properly; keep hot foods hot (above 63°C) and cold foods cold (below 5°C);
5. pay strict attention to storage instructions, and to "use by" dates where these are given on the pack.
Ralph Blanchfield | alfa
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