FOOD SAFETY 2017
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Transcript of FOOD SAFETY 2017
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What is Foodborne Illness?
Commonly known as food poisoning, foodborne illness is caused by eating food that is contaminated by bacteria or other harmful substances.
How does food become hazardous?
Food becomes hazardous by contamination. Contamination is the unintended presence of harmful substances or microorganisms in food. Food can become contaminated from:
Chemical hazards
Physical hazards
Biological hazards
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What is “cross contamination?”
Cross-contamination is the transportation of harmful substances to food by:
What conditions encourage bacteria to grow?
Warm Neutral-slightly acidic pH
Moist Protein-rich 41°F (5°C) and 135°F (57°C)
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OOD
CIDITY
IME
EMPERATURE
XYGEN
OISTURE
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FOODFOODATTOM
Foodborne microorganisms need nutrients to grow. These are commonly found in potentially hazardous food, such as
meat, poultry, dairy products, and eggs.
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F
ACIDITYACIDITYTTOM
pH is a measurement of how acidic or alkaline a food is.
pH 0-6.9 = acidic foods (ex. lemons)
pH 7.1-14 = alkaline (ex. crackers)
pH 4.6-7.6=neutral to slightly acid (bacteria grows best)
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FAT
TEMPERATURETEMPERATUREOM
Temperature Danger Zone = 41-135° F
Food must be handled very carefully when it is:*Thawed *Cooked
*Cooled *Reheated
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FA
TIMETIMETOM
Foodborne microorganisms need sufficient time to grow!
They are capable of doubling their population every twenty minutes.
If potentially hazardous food remains in the temperature danger zone for
four hours or longer, foodborne microorganisms can grow to levels high enough to make someone ill.
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FATT
OXYGENOXYGENM
While most microorganisms need oxygen to grow, some do not!
Examples of foods that are associated with bacteria that do not need oxygen to grow are:
o Cooked rice
o Untreated garlic-and-oil mixtures
o Baked potatoes
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FATTO
MOISTUREMOISTUREWater Activity Food Examples
0.95 Fresh Fruit, Meat, Milk
0.95-0.9 Cheese
0.9-0.85 Margarine
0.85-0.8 Salted Meats
0.8-0.75 Jam
0.75-0.65 Nuts
0.65-0.6 Honey
0.5 Pasta
0.3 Dried Vegetables
0.2 Crackers
Per
isha
bilit
y
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How can I handle food How can I handle food safely?safely?
Bacteria like Staphylococci are found on the hair, skin, mouth, nose and in the throat of healthy people.
According to one estimate, nearly 50 percent of healthy food handlers carry disease agents that can be transmitted by food.
The most important tool you have to prevent foodborne illness is good personal hygiene
Good personal hygiene includes:
•Proper bathing •Hand washing
•Clean hat/hair restraint •Trim nails, avoid nail polish
•Clean clothes •Proper glove use
•Remove jewelry •Maintain good health
•Avoid unsanitary habits/actions •Report wounds and illnesses
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Proper Handwashing Proper Handwashing ProcedureProcedure Wet your hands with running water as hot as you can
comfortably stand Apply Soap Vigorously scrub hands and arms for ten to fifteen
seconds Rinse thoroughly under running water Dry hands and arms with a single-use paper towel or
warm-air hand dryer
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Food flowFood flowPurchasingStoringPreparingCookingHoldingServing
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Purchasing/ReceivingPurchasing/Receiving
Buy only from reputable suppliers Schedule deliveries for off-peak hoursInspect deliveries carefullysample temperatures of received food
items
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Purchasing/GroceryPurchasing/Grocery
Purchase meat, poultry and dairy products last. Keep packages of raw meat and poultry separate Make sure products are refrigerated as soon as possible Check that all food packages are intact Select produce that is fresh
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StoringStoring
Label food FIFO Stored product needs depleted regularly Check expiration dates Keep out of the temperature danger zone Store food in designated storage areas Keep all storage areas clean and dry
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PreparingPreparing Proper Thawing
Refrigerate at 41° F or lower Under running water at 70° F or lower In a microwave if the food will be cooked immediately
Meat, Fish, Poultry Use clean and sanitized work areas and equipment Wash hands properly Remove from refrigerator only as much as you can prepare
at one time Return raw prepared meat to refrigerator, or cook it
immediately Eggs
Handle pooled eggs with special care Consider using pasteurized egg products Promptly clean and sanitize all equipment and utensils
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Preparing continued…Preparing continued… Produce
Do not expose to raw meat and poultry Wash thoroughly under running water When soaking, do not mix with other items Refrigerate and hold cut melons at 41° F or lower
Ice Ice must be made from drinking water Ice used to chill should not be used as an ingredient Use a clean, sanitized container and ice scoop
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CookingCooking• 165° F
-Poultry-Stuffing/Casserole -Hazardous food cooked in microwave (eggs, poultry, meat, fish)
• 155° F-Ground meat-Ground, chopped, or minced fish
• 145° F-Steaks/chops -Roasts-Fish-Eggs
• 135° F-Fruit or Vegetables-Commercially processed, ready to-eat food
*temperatures must be maintained for at least 15 seconds, excluding roasts which must be maintained for 4 minutes.
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HoldingHolding Check the temperature of food at least every
four hours Establish a policy to determine how long food
will be held Cover food Prepare food in small batches
Cold food Hot food Must be held at 41° F or lower OR Can not exceed 70° F and is served or discarded within six hours
Must be held at 135° F or higher
ORIt is served and discarded within four hours
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Serving Serving Kitchen Staff
Use clean and sanitized utensils for serving Use serving utensils with long handles Store serving utensils properly Use gloves when handling ready-to-eat foods Practice good personal hygiene
Self-Service Identify all food items Maintain proper food temperatures Replenish food on a timely basis Do not refill soiled plates or use soiled silverware
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Quetions?Quetions?Thank you
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RESOURCESRESOURCES
Iowa State University http://www.extension.iastate.edu/foodsafety/Lesson/homepage.html
Institute of Food Technologist http://www.iftsa.org/outreach/so/labs/wa/
National Restaurant Association Education Foundation. Serve Safe.4th ed.