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what is the point of food safe certifications
to prevent food borne illnesses
what is the fecal-oral route
the route of feces to one’s food/water —> most food-borne illnesses are due to this trac
food-borne illness vs food poisoning
food poisoning is from chemicals in food only
food-borne illnesses is caused by ingestion of harmful micro-organisms
what is pathogen
harmful microorganism (bacteria, virus, fungi, parasites)
what i potentially hazardous food
food that is more likely to make one sick —> has the key things to make a pathogen grow quickly
what is non-hazardous food
food that does not have qualifications to make pathogen grow quickly
can still cause illness though if contaminated
definition of cleaning
using friction to loosen/remove debris and microorganisms
usually with brush/fingers and water
definition of sanitizing
emerging food-contact surfaces in hot water or food-contact surfaces to reduce microorganisms to safe levels
sanitizers remove 99% of pathogens in 2 minutes
what is it called when a sanitizer removes 100% of pathogens
Sterilization —> not practical in most food service establishments
what is difference between disinfectant and sanitizers
disinfectants are too strong and harmful for food environments
the word “sanitize” must be on a product for it to be safe to use aroun food
what is the danger zone (temps and definition)
4 degrees C to 60 degrees C
this is the zone in which pathogens grow quickly
important to keep potentially hazardous food out of this zone quickly —> the longer in the zone —> the more likely an illness can occur
what is the most dangerous temp in danger zone
37 degrees C (middle of zone)
this is body temp
bacteria grow fastest here
what is the number one cause of food-borne illness
temperature abuse of potentially hazardous food (i.e. undercooking, cooling too slow, thawing at room temp)
what is the number 2 cause of illnesses
cross contamination (i.e. raw meat touching ready-to eat meat)
how many canadians fall ill with pood borne illnesses each year
1 in 8 canadians
list all the levels of government that regulates the food service industry
Federal, Provincial, Municipal
how does the federal government regulate food industry
Canadian Food Inspection Agency (CFIA) inspects manufactured food made in or transported to Canada
enforces the Food and Drug Act —> sets the standards for all food
oversees recalls
also regulates foods often linked to illnesses: meats/poultry, dairy, seafood, eggs…
how does the provincial government regulate food service industry
Public Health Act and Food Safety Act
allow health inspectors to inspect health hazards
splitting province into 5 Regional Health Athoritiies
Food Premises Regulation (part of Public Health Act enforced by Inspectors) = minimum food safety standards that must be followed anywhere that serves food to the public (including: temperatures, hygienen, sanitization, washrooms, maintenance
handles permits of operation
what is a health hazard
something that endangers public health or interferes with the suppression of infectious agents
a prescribed condition/thing that is associated with injury/illness
what are the 4 “Power laws” that inspectors are allowd to enforce
Power of Entry —> unannounced inspections
Power of Seizure —> take away food they think is contaminated
Power of Destruction —> destroy food they think is contaminated
Power to Make an Order —> making service places comply with food safety regulations
what are the requirements for permits to operate
operator must have permit from Public Health Inspector
permut is visible to public
Permit restricts type of food served and how it’s prepared
floor plans are approved by inspector
what are the 4 roles of a Public Health Inspector
1) inspect food premises so food is safe to eat
2) educate food handlers on proper food safety —> teach during inspections
3) enforce food premises regilations from Privincial food safety regulatuion
4) help Develop a food safety program with the operator (HACCP)
what does the municipal government do to regulate the food service industry
create bylaws that the federal/provincial law don’t cover that can deal with local issues
what are the 4 types of microorganisms
1) viruses
2) parasites
3) bacteria
4) fungi (mould + yeast)
what are viruses
tiny tiny things (smaller than bacteria) → they grow and reproduce in cells
they are not living things
can survive on surfaces
what happens with an illness via virus
illness comes on quick and lasts a short time (1-2 days)
very contageous —> can be passed on by human hands to food or contaminated waters to seafood
handlers can be carriers
what are examples of viruses in food
hepatitus A
norovirus
rotavirus
what are parasites
living things that feed off humans and animals → poop and contaminate things and cause illness
can be single celled or multi cellular worms
DO NOT GROW ON FOODS
live longer than bacteria
transfered through consuption of fecal contaminated water or food
symptoms of these illnesses last longer than bacteria
whats the best way to control parasites
proper cooking temps
boiling water for drinking for one minute
freezing kills
what are the single-celled parasites called + some assicuated illnesses
protozoa => Giardia, Clyclospora, Cryptosporidium, Toxoplasmosis
what are mulriple celled parasites called + associated illnesses
helminth => trichirella, Taenia Saginata (tapeworms)
what are some bad bacteria strains
Salmonella, E. Coli., Campylobacter, Listeria, Botulism, Bacillus Cereus, Staph aureus
qhat are the two ways in which pathogenic bacteria can cause a food=borne illness
1) Bacterial infection
2) bacterial intoxication
What is Bacterial Infection
illness caused by eating contaminated food with bacterial pathogens
bacteria mulriply in food and then in intestines
symtoms start slow (within 103 days or up to 2 months)
the amount and type of bacteria determines when symptoms start and how intense it is
what kinds of bacteria casue INFECTIONS
Salmonella (in chicken and eggs)
E.Coli. (in beef)
Campylobactor (in processed meats)
Shigella (in veggies)
What is bacterial intoxication
get sick from the waste bacteria produces (I.e. toxins)
not all toxins are destroyed by cookingf
start of symptoms is quick (1-6hrs) and last 2 weeks
symptoms: vomiting, nausea
what bacteria can cause bacterial intoxication
botulism (home-canned veggies)
Staph aureus (ham)
Bacillus Cereus (rice and gravy)
Bacterial infection vs intoxication illnesses
Infection: slow onset of symptoms, last long —> diarrhea, cramps, fever
Intoxication: quick onset of symptoms, last 2 weeks —> vomit and nausea —> usually due to temperature abuse
how do bacteria grow
one divides into 2 in as quick as 20 minutes in correct conditions
some bacteria enter spore state —> do not grow but still alive
what are spores
protective state some bacteria take when growing conditions not ideal —> still alive but not growing
once ideal conditions resume, bacteria continues growing
spores cannot be destroyed by cooking —> use barrier method to make sure conditions are not good for spore to go away
botulism can be a spore —> their toxin is more dangerous
what are the 5 ideal conditions for bacterial growth
high protein
high moisture
neutral pH
excess O2
in temps between 4 degrees C to 60 degrees C (danger zone)
what is the barrier method
removing just one of the ideal conditions for bacterial growth
most common is temperature control —> keeping outside of danger zones
what are carriers
people who are infected without showing symptoms —> can still transfer into food prep and contaminate others
good handwashing for this reason
what are the 3 factors that make people more or less likely to get sick
1) immune status (high risk people: young kids, elderyly, weak immune systems, pregnant women)
2) how many organisms you ate —> need to have an infectious dose in order to get sick
3) type of organism you ate
what is FAT TOM
all the ideal conditions for bacteria to grow
FOOD: nutrients for the bacteria (water and protein and carbohydrates)
ACIDITY: needs a neutral pH (between 4.5-7.5) —> does not like acidity
TIME: enough time in danger zone —> duplicates every 20mins, 2hr in danger zone is bad
TEMPERATURE: likes the temps in the danger zone (freezing does not kill bacteria)
OXYGEN: aerobic bacteria love oxygen (anaerobic do not like it)
MOISTURE: the amount of water activity (Aw) —> free water available
lowering the free water available makes food safer (adding salts, freezing, dehydrating, cooking)
what is best before vs expiry date
Best before: promise from manufacturer that a product will be freshest until that date → quality not great after → can still be sold and consumes
Expiry: cannot sell or consume
not a sudden risk but nutritional quality can no longer be guaranteed after that date
what is colonization
term describing pathogenic bacterial that grows on the outside of one’s body without causing illness
can get others sick if touch body then touch food without washing hands
what is a type of pathogenic bacteria that can be collonized on someone
Staphylococcus aureus (staph) lives on peoples skin —> can cause vomiting quick if consume contaminated food
what is an allergy
an overreaction of the immune system to unwanted substances
what is direct microbial contamination
physical transfer of pathogens from contaminated food source to a person —> no food involved
what is an indirect transmission of pathogens
spread of pathogens via intermedate object like food or water
steps for dealing with complaints of a food-borne illness
1) refer to manager
2) manager should get as much info as possible about the illness
3) call the health department —> the customer should do the same
why is raw ground meat more dangerous than raw whole meats
whole meats involve less direct contact with food handling equipment —> the middle is safe and uncontaminated —> don’t have to cook all the way through
raw ground meats touch food handling equipment from all parts —> must cook through
why is tenderized meat not safe to eat undercooked
the needles puncture into the middle of the meat —> contaminating inside of whole meat
examples of temperature abuse
leave food out to thaw in room temp
not cooling foods fast enough through danger zone
not regridgerating food at proper temp
not thoroughly cooking foods
not hot-holding food at proper temp
3 types of thermometers
indicating thermometer —> for inside a fridge
laser/infrared thermometer —> instant temp read-out
Probe thermomenter —> for internal temperatures
what is the flow of food
all the steps it takes to get from receiving to reheating leftovers
what is cold holding
keeping food in fridge or freezer
what are the 4 safe ways to thaw food
1) in fridge at 4 C or less
2) in microwave —> not the best
3) running under cold water over plastic wrap
4) cooking from frozen
what is hot holding
holding cooked food above 60 C until it is ready to serve —> heat lamps are not enough
what are the two stages of cooling food
1) 60 C - 20 C within 2 hours
2) 20 C - 4 C within 4 hours
total of 6 hours alotted to cooling
what is the cycle of transmission
a cycle where contamination at any point in cycle can spread throughout
includes: food handlers, food, equipment
what is direct cross-contamination
contaminated food touches or drips onto cooked food
meat juice, chemical cleaner, pest feces
what is indirect cross-contamination
using same equipment or utensils to handle raw food then cooked food right after —> can also happen with hands
what is a food safety management system
a general set of food safety practices and standards for use in food premises
includes HACCP
what does HACCP stand for
Hazard Analysis and Critical Control Point —> goal: eliuminate cases of food-borne illnesses
has 7 steps
what is step 1 of HACCP
Hazard Analysis: assess risks throughout a recipe by breaking down each step of the recipe
What is step 2 of HACCP
identifying critical control points —> this is a posibly hazardous step in food prep
What is Step 3 of HACCP
critical limits must be set for each Critical Control Point identified —> these are the riles and temperature minimums that one must follow to make the CCP safe
What is step 4 of HACCP
Monitor the CCPs —> ensure all critical limits are achieved with each CCP
the CLs must be recordable
What is Step 5 of HAACP
Corrective action —> action if time/temp is unsafe —> must record corrective action
Step 6 of HACCP
verification: double check the HACCP system is working —> verified by someone not involved in monitoring
Step 7 of HACCP
Documentation and recording
What is a Preventative Maintenance Program
a plan ensuring all equipment works to manufacturere’s specifications —> maintenance and calibration
how often must equipment that is continuously used at room temp need to be cleaned and sanitized
every 4 hours
steps of receiving
check truck for no contamination and proper shipping temps —> reject anything warm or refrozen
check meat for discoloured, smell, etch
check fish with sunken or coudy eyes
check fish for cracks feathers feces (Grace C)
Check Dairy for being pasturized
Check MAP foods for packaging
what are MAP foods
Modified Atmosphere Packaging (MAP) —> reduces or replaces O2 with other gases to keep bacteria from growing
should caterers prepare large amounts of food ahead or small amounts
SMALL
what are the 3 types of chemical sanitizers
Chlorine based —> household bleach (2mL bleach in 1L of water —> 100ppm
Quaternary Ammonium based —> 200ppm
Iodine —> 25ppm
what are the two types of mechanical dishwashers
1) Low Temp —> uses chemicals
2) high temp —> uses heat only (82 C for at least 10 seconds)
how to clean equipment at “clean-in-place'“
must sanitize with twice the concentration
what is a sanitization plan + 3 components
a written procedure of sanitization for safety
1) list of cleaning and sanitizing agents
2) list of pesticides
3) cleaning schedule
how long should one wash their hands for
20 seconds
tips for pest control
use screen doors and windows
fill all holes —> steel wool, concrete
check deliveries
eliminate food sources
have pest control company on contact
characteristics of cockroaches
can live up to 2 years and lay up to 500 eggs
live and breed in dark, warm, moist, places
lay eggs in cardboard
characteristics of flies
attarcted by smells of rot, garbage
breed in garbage and feces
a small problem can get bad quick
spread diseases via their hair and suction cups on feet and their vomiting
rodents
serious health hazard
poop and pee on food
breed quick
active in dark
what is an Integrated Pest Management (IPM) System
system to keep pests away and get rid of them
what are the two types of pest control measures
1) operator applied
2) professional applied
what are the 3 rules for developing an IPM program
1) good sanitation + housekeeping
2) pest-proofing building
3) work with pest control company