The theme of WHO Day, commemorated every year
on 7th April was “Food Safety”. On the
occasion, Dr. Suresh Sundar, has contributed some valuable tips for good health.
Food containing harmful bacteria, viruses,
parasites or chemical substances is responsible for more than 200 diseases,
ranging from diarrhoea to cancers.
That’s why WHO is promoting efforts to improve food safety, from farm to
plate (and everywhere in between), by focusing on this important theme, this
year.
Since Food safety is a shared responsibility,
it becomes important to work all along the food production chain – from farmers
and manufacturers to vendors and consumers.
It has proposed 5 Keys to safer food :
Key 1: Keep clean
Key 2: Separate raw and cooked food
Key 3: Cook food thoroughly
Key 4: Keep food at safe temperatures
Key 5: Use safe water and raw materials.
The Guiding principles could be Heat It : Boil
It : Cook it : Peel it or forget it
Do not drink raw (unpasteurized) milk or foods
that contain unpasteurized milk. Raw milk is milk from cows, goats, sheep, or
other animals that has not been pasteurized (heat treated) to kill harmful
germs. A wide variety of germs that can make people sick have been found in raw
milk, such as Brucella, Campylobacter, Listeria, Mycobacterium bovis,
Salmonella, and Shiga toxin-producing Escherichia coli, including E. coli O157.
E. coli O157 can cause haemolytic uremic syndrome, which is a sometimes deadly
cause of anaemia and potentially permanent kidney failure. Raw milk
contaminated with disease-causing bacteria does not smell or look any different
from uncontaminated raw milk, and there is no easy way for the consumer to know
whether the raw milk is contaminated.
- Wash raw fruits and vegetables thoroughly before eating. They should be washed by rinsing well in running cold water and scrubbing, instead of by soaking in standing water.
- Keep the refrigerator temperature at 4.4ºC or lower.
- Keep the freezer temperature at -17.8ºC or lower.
- Refrigerate foods promptly. Never leave cooked foods at room temperature for more than two hours (one hour if the room temperature is above 32ºC).
- Use precooked, perishable, or ready-to-eat food as soon as possible.
- Wash hands, knives, and cutting boards after handling uncooked food.
- Do not eat pre-prepared salads.
- Do not eat soft cheeses such as feta, Brie, and Camembert, blue-veined cheeses, or Mexican-style cheeses such as queso blanco, queso fresco, or Panela, unless they have a label that clearly states that the cheese is made from pasteurized milk.
Bacteria like Listeria can grow in the
refrigerator. So, even if you consume
foods that are considered safe, be sure to eat them from freshly opened packs
and not from leftovers in the refrigerator.
2-Hour Rule: Put foods in the fridge or freezer within 2
hours after cooking or buying from the store. Do this within 1 hour if it is 32
degrees C or hotter outside.
Never thaw food by simply taking it out of the
fridge. Thaw food: - In the fridge - Under cold water - In the microwave (thaw
= pighlana)
Marinate foods in the fridge. (TEL, MASALE ADI
KE MISHRAN MEN LAPETANA)
Non Vegetarian foods
Keep raw meat, fish, and poultry separate from
other food.
Wash hands, knives, and cutting boards after
handling raw meat, fish, or poultry.
Thoroughly cook raw food from animal sources to
a safe internal temperature: ground beef 71ºC; chicken 77ºC and turkey 82ºC.
Seafood should be cooked thoroughly to minimize
the risk of food poisoning.
Eating raw fish (sushi) poses a risk for a
variety of parasitic worms (in addition to the risks associated with organisms
carried by food handlers). Freezing kills some, although not all, harmful
microorganisms. Raw fish that is labelled "sushi-grade" or "sashimi-grade"
has been frozen.
Cook chicken eggs thoroughly, until the yolk is
firm.
- Do not eat hot dogs, pâtés, luncheon meats, bologna, or other delicatessen meats unless they are reheated until steaming hot; avoid the use of microwave ovens since uneven cooking may occur.
- Avoid spilling fluids from raw meat and hot dog packages on other foods, utensils, and food preparation surfaces. In addition, wash hands after handling hot dogs, luncheon meats, delicatessen meats, and raw meat, chicken, turkey, or seafood or their juices.
- Do not eat pre-prepared chicken salad, egg salad, tuna salad, or seafood salad.
- Do not eat refrigerated pates or meat spreads. Canned or shelf-stable products may be eaten.
- Do not eat refrigerated smoked seafood unless it has been cooked. Refrigerated smoked seafood, such as salmon, trout, whitefish, cod, tuna or mackerel, is most often labelled as "nova-style," "lox," "kippered," "smoked," or "jerky." The fish is found in the refrigerator section or sold at deli counters of grocery stores and delicatessens. Canned or shelf-stable smoked seafood may be eaten.
Dry Fruits
Humidity should be eliminated from any area
where dry food is being stored.
Any oxygen at all can be considered a threat to
the quality of dry food and can actually decrease its shelf life.
Keep it in its original packaging—since a
product’s packaging is typically designed to keep its contents fresh. If an
item’s original packaging has been tampered with, or it is not possible to keep
the food inside of the packaging (due to limited space, bulky packaging etc.)
then the best alternative is to disperse the products into a range of airtight
containers. As a general rule of thumb, food storage areas should never have a
humidity level that’s higher than 15%.
When dry food products are exposed to a lot of
sunlight, photo-degradation occurs, which causes foods to lose nutrients such
as fats, proteins and vitamins.
Dry food products should always be stored in a
cool and well-ventilated area. In fact, the storage temperature for dry food
should always be somewhere between 50°F and 70°F. Industry professionals
recommend that the area where dry food is stored should be well-ventilated and
void of any equipment that produces heat. This can include water heaters, steam
generators and transformers.
Keep track of when each and every item was
first placed into the pantry. Do not eat after the expiry date.
General Precautions
- People with diarrhoea and/or vomiting should be cautious to avoid spreading infection to family, friends, and co-workers. A person is considered infectious for at least as long as vomiting or diarrhoea continues, and sometimes longer depending upon the microbe.
- Micro-organisms that cause food poisoning are usually spread from one person to another by hand to mouth contact. As a result, hand washing, care with diapering, and staying out of work or school are a few ways to prevent infecting family and other contacts.
Let us all work together to make food safe from
farm to plate.
This article was contributed by Dr. Suresh Sundar, M.D., D.P.H. (Mumbai), Cert. PHC & Rural Management (Thailand) for CALIBRE CREATORS LEARNING LETTER.
This interview was published in the Calibre Creators LEARNING LETTER issue of May 2015, Vol. 3, Issue No.9.
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