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foodborne illness
A disease transmitted to people from food
Outbreak confirmation
two or more people have same symptoms after eating same food
investigation conducted by state and local regulatory authority
outbreak confirmed through laboratory analysis
7 challenges to food safety
time
language and cultural barriers
literacy and education
pathogens
unapproved suppliers
high risk customers
staff turnover
what usually causes food to be unsafe?
contamination
types of contamination
biological, chemical and physical hazards
5 common risk factors to food safety
purchasing food from unsafe sources
failing to cook food correctly
holding food at incorrect temperatures
using contaminated equipment
practicing poor personal hygiene
4 main factors of hazards
time-temp control, cross contamination, poor personal hygiene, cleaning and sanitizing
what is TCS food
Time and temperature control safety foods
Name TCS foods
milk and dairy
meat, fish, poultry
eggs
heat treated plant based food
baked potato
tofu and soy protein
sliced tomato, melon and leafy green
sprouts and its seeds
untreated garlic and oil mixtures
RTE food
Ready to Eat food
e.g. bakery items, cooked food, plant foods cooked for hot holding, deli meat, washed fr/veg, sugar, spices and seasoning
Population at high risk for foodborne illness
immunocompromised, elderly, young children
How to keep food safe?
Control Time and Temp
Prevent Cross-Cont.
Practise Good Personal Hygiene
Purchase from approved, reputable suppliers
Clean and Sanitize
FDA requirement for food manager
be a certified food protection manager
must be onsite at all times during operating hours
there are exceptions such as if minimal risk operation like convenience store
Food Safety Training
Identify training needs (based on roles and responsibilities)
develop the curriculum
implement training
assess knowledge
initial and ongoing training
retrain regularly
document training
monitor employees
take corrective action
What does the FDA do?
FDA inspects all foods except meat, poultry and eggs
Regulate food transported across state lines
Issue FDA food code
What is the USDA stand for and responsible for?
U.S. Department of Agriculture
Inspecting meat, poultry and eggs
Regulate food that involves more than one state line
Which groups writes or adopts codes that regulate retail and foodservice operations?
State and Local Regulatory authorities
What do state and local reg authorities do
inspect and enforce regulations
investigate complaints and illness
issue licenses and permits
Why are inspections required and what do they do?
Measure if they are meeting minimum food safety stds
written report on deficiencies and violations and give them time frame to correct
Fecal Oral Route of Contamination
Food handlers not washing hands after using washroom
Main cause of most contamination
bad food handling
Contamination
Presence of harmful substances in food
types of biological contaminants
bacteria, viruses, parasites and fungi
pathogens - directly or via toxin
THE BIG 6 (bio cont.)
shigella spp.
salmonella typhi
non-tyhphoidal salmonella (NTS)
shiga toxin producing escherichia coli (STEC or E.coli)
Hepatitis A (VIRUS)
Norovirus (VIRUS)
Common Symptoms of Food Borne Ilness
Diarrhea, Vomit, Fever, Nausea, Abdominal Cramp, Jaundice
What is Onset Time
How quickly someone gets sick (30 mins to 6 weeks)
How to control bacterial foodborne illness (FATTOM)
most imp โ control time and temp
Food (TCS supports bacterial growth)
Acidity (bacteria grows in food neutral to slightly acidic)
Temperature
Time
Oxygen (type of microbe)
Moisture levels (high moisture, high bacteria)
Temperature Danger Zone + Fastest Growth Zone
41DF to 135DF
70DF to 125DF
Salmonella Typhi
carried in bloodstream and intestinal tract
only small amount
found in RTE and beverages
prevent: exclude handlers with it, wash hands and cook food to required minimum internal temperature
Which bacteria remains in feces for weeks after illness ended
Salmonella Typhi, Nontyphoidal Salmonella, Shigella Spp, E.coli
Non Typhoidal Salmonella
Linked to poultry, eggs, meat, milk and dairy products (animal products) and Produce: Tomatoes, Peppers and Cantaloupes
Preventative: Cook poultry and eggs correctly, prevent cross-contamination between RTE, exclude food handlers diagnosed with it
Shigella Spp
found in diagnosed personโs feces
flies can transfer from feces to food
linked to TCS food: potatoes, tuna, shrimp, macaroni and chicken salad and food contaminated by water such as produce
prevention: exclude food handlers diagnosed with it, wash hands and control flies
E.Coli
found in intestine of cattles
meat contam. during slaughter
toxins cause illness
foods: raw or undercooked ground beef and cont. produce
exclude food handler w it and w diahrea,
cook food to req. min. internal temp esp ground beef,
purchase from reputable supplier and prevent cross cont.
Viruses
hepatitis A and Norovirus
require a living host to grow
can be transferred to food
people can get infected via food, water or any cont. surfaces
are not destroyed by normal cooking temp.
How do viruses typically occur in food
fecal oral route
How is Norovirus spread most commonly?
Airborne vomit particles