FST Exam Review Flashcards
What is the temperature to reheat cooked foods?
74 C (165 F) for 15 seconds
What are the 3 main driving factors of food borne illness?
Time/Temp abuse
Poor personal hygiene
Cross contamination
What’s another name for cross contamination?
Indirect transmission
It is most dangerous when microbes travel from ____ to ready to eat foods
raw
Differentiate pathogenic and toxigenic bacteria
Pathogenic: infectious
Toxigenic: Poisonous, produce toxins as they multiply
Differentiate vegetative and spore states of bacteria
Vegetative: Can grow and reproduce, survive low temps, but killed by high temp
Spore: Protected from their environment, can survive cooking/freezing/salt/low pH
What causes bacterial growth? (FAT-TOM)
Food Acidity Time Temperature Oxygen Moisture
What pH is ideal for bacterial growth?
4.6-7.5
What moisture content is ideal for bacterial growth? What moisture content is safe?
ideal: aW between 0.97-0.99
safe: aW < 0.85
Which pathogen produced two different toxins?
Bacillius Cereus
- emetic
- diarrheal
What is the incubation period of the emetic form of b.cereus?
Short, 0.5 - 6 hours
Where is the emetic form found?
Starchy, cooked plant foods
What is the incubation period of the diarrheal form of b.cereus?
Long, 6-15 hours
Where is the diarrheal form found? Can it be destroyed by cooking?
Meats/veg/fruit/milk
Yes
(T/F) The emetic form is a food intoxication
T
The diarrheal form is ______ infections
toxin-mediated
ingesting microbe which later produces toxins
Name two viruses that can cause food borne illness
- Hepatitis A
- Norovirus (Norowalk)
____ is commonly mistaken for the stomach flu
Norovirus
Name the 5 parasites causing food borne illness
- Trichenella Spiralisis
- Anisakis Simplex
- Giardia Lambdia (protozoa)
- Cryptosporidium Parvum (protozoa)
Which parasite is a naturally occuring roundowrm traditionally in pigs but may be passed to humans and causes painful abdominal cramps? A) Trichenella Spiralisis B) Anisakis Simplex C) Giardia Lambdia (protozoa) D) Cryptosporidium Parvum (protozoa)
A)
Which roundworm lives in fish? A) Trichenella Spiralisis B) Anisakis Simplex C) Giardia Lambdia (protozoa) D) Cryptosporidium Parvum (protozoa)
B)
Which parasite is naturally found in water and causes diarhea? A) Trichenella Spiralisis B) Anisakis Simplex C) Giardia Lambdia (protozoa) D) Cryptosporidium Parvum (protozoa)
C)
Which parasite is a waterborn parasite and is found in fish, fruit and veggies? A) Trichenella Spiralisis B) Anisakis Simplex C) Giardia Lambdia (protozoa) D) Cryptosporidium Parvum (protozoa)
D)
(T/F) Moulds cannot survive high salt/low pH environments
False
What is alfatoxin produced by?
Aspergillus Flavus
Aspergillus Parastiens
(T/F) Yeast can survive in high salt/low pH environment
false, they need sugar and water to survive
Name the 3 primary systemic seafood toxins (CSS)
A) Ciguatera toxin
B) Scumboid toxin
C) Shellfish toxin
Which seafood toxin is a result of a buildup of toxins from larger fish consuming smaller who feed specifically on algae biotoxins?
A) Ciguatera toxin
B) Scumboid toxin
C) Shellfish toxin
A)
What are some fish that are at risk for the Ciguatera toxin?
A) Oysters, clams, scallops
B) Tuna, bluefish, marin, mackerel
C) Amberjacks, barracuda, snapper
C)
Which seafood toxin causes histamine poisoning, triggering severe allergic reactions?
A) Ciguatera toxin
B) Scumboid toxin
C) Shellfish toxin
B)
What are some fish that are at risk for the Scumboid toxin?
A) Oysters, clams, scallops
B) Tuna, bluefish, marin, mackerel
C) Amberjacks, barracuda, snapper
B)
Which seafood toxin may lead to paralytic shellfish poisining and redtide as a result of larger fish accumulating toxins in their tissues from feeding on lower food chain fish?
A) Ciguatera toxin
B) Scumboid toxin
C) Shellfish toxin
C)
What are some fish that are at risk for the shellfish toxin?
A) Oysters, clams, scallops
B) Tuna, bluefish, marin, mackerel
C) Amberjacks, barracuda, snapper
A)
Are the scumboid toxin and ciguatera toxin killed by cooking?
NO
What is the toxin in cassava? How can it be avoided?
Cyanogenic glycoside
Ensure to peel roots and cook throughly
What part of the fish is high in ciguatera toxins?
head, liver, gonads
Avoid eating these parts of the fish
What should not be allowed to flow back into copper water intake lines?
Carbonated water (soft drinks) The CO2 may oxidize the copper pipes, leeching into the soft drink supply
(T/F) It is okay for CO2 to flow back into the water intake lines as long as they are galvanized with zinc, and not copper
False
Zinc is still a strong reducing agent, and will become oxidized and leech into the soft drink supply like copper
(T/F) To be environmentally friendly, it is OK to use common towels in a customer bathroom
False, must be single use
(T/F) Using bar soap in a customer washroom is a health violation
True
Cannot touch the entire supply, must be dispensed soap
What is the minimum temperature for the hand washing station?
43 C (110 F)
(T/F) Sanitizing lotions can never be used in a restaurant establishment
False
Can be used, but cannot replace hand washing
Gloves need to be changed how often?
Every 4 hours minimum
What is the minimum temp from receiving cold foods?
4 C (40 F)
What is the maximum temp for receiving frozen foods?
-18 C (0F)
What is the minimum temp for receiving hot foods?
60 C (140 F)
In cold storage, arrange the following to be stacked properly:
- Raw Poultry
- Raw Fish
- Raw Pork/Ham/Bacon/Sausage
- Cooked/Ready to eat
- Raw Unground Beef
From top to bottom:
- Cooked/Ready to eat
- Raw Fish
- Raw Unground Beef
- Raw Pork/Ham/Sausage
- Raw Poultry
_____ is the most important aspect of food safety
Temperature
Name the two methods to calibrate thermometers
1) Ice point method
2) Boiling point method
Explain the ice-point method
1) Fill container with 50/50 mix ice and cold water
2) Place thermometer to dimple, around 30 secs
3) When the needle stops moving, adjust nut until reading is at 0C (32F)
Explain the boiling point method
1) Fill container with boiling water
2) Place thermometer to dimple, about 30 secs
3) When needle stops moving, adjust nut until reading is at 100 C ( 212 F)