How can a cook tell if a hamburger patty is safely cooked?
FOODSAFE Level 1: Time and temperature control
The danger zone, potentially hazardous food, 4°C and 60°C holding, −18°C freezing, the 2-hour rule, thermometer accuracy, checks and calibration.
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- Every answer explained
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- 13 questions
- Topic drill
Study reference: B.C. food premises law and health authority guidance (Oct 2026), Ch. 4 Time and temperature control — Food Premises Regulation ss. 14, 19; HealthLinkBC File 59a; Interior Health food safety plan; FOODSAFE thermometer guide
All 13 questions in this test
Every question and its answer choices. The correct answers and explanations appear when you take the test above.
How can a cook tell if a hamburger patty is safely cooked?
- Check its temperature with a food thermometer
- Press it to see if the juices run clear
- Check that the inside has turned brown
- Time it at five minutes on each side
At what temperature must frozen food be stored, displayed or transported?
- 0°C or colder, in any freezer
- 4°C or colder
- −18°C or colder
- −5°C or colder
How long can cooked leftovers safely sit at room temperature?
- Up to 4 hours
- No more than 2 hours
- Up to 6 hours
- Until the end of the shift
When checking a thermometer in boiling water at sea level, what should it read?
- 100°C
- 74°C
- 82°C
- 120°C
What temperature range is called the danger zone, where germs grow quickly?
- 4°C to 60°C
- −18°C to 0°C
- 0°C to 4°C
- 60°C to 74°C
How often should cooler and hot-holding temperatures be checked?
- Only when food smells off
- Once a month
- Once a year
- At least once a day
How accurate must the thermometer in a refrigerator or hot-holding unit be?
- Within 10°C
- Within 5°C
- No standard is set
- Within 1°C
A cooler fails and a tray of raw chicken has been above 4°C for 3 hours. What is the corrective action?
- Move it to the freezer
- Discard the chicken
- Sell it the same day
- Cook it right away to 74°C
Soup in a steam table is found at 50°C, and has been for about 3 hours. What should happen?
- Reheat it to 60°C and keep serving
- Move it to the cooler for tomorrow
- Discard it
- Stir it and check again in an hour
A thermometer reads 101°C in boiling water at sea level. What does that mean?
- It reads 1°C too low
- It is perfectly accurate
- It reads 1°C too high
- It must be used only for cold food
What is potentially hazardous food?
- Food that can support the growth of germs or toxins
- Food packed in glass jars that could break
- Food that contains spices strong enough to burn
- Any food sold after its best-before date has passed
At what temperatures must potentially hazardous food be stored or displayed?
- 10°C or colder, or 50°C or hotter
- 4°C or colder, or 60°C or hotter
- 8°C or colder, or 55°C or hotter
- Room temperature, if covered
Which of these is a potentially hazardous food?
- Cooked rice
- Uncooked dry pasta
- Unopened canned soup
- Plain table sugar
Time and temperature control: key rules to remember
Our summary of what the official handbook says on this topic, in our own words. Read it before or after the practice questions above, then check the original chapter. Read the official chapter ↗
Potentially hazardous food
- Potentially hazardous food can support the growth of disease-causing micro-organisms or toxin production.
- Examples (Interior Health): meat, fish, dairy, eggs; cut or cooked fruit and vegetables; raw seed sprouts; cooked rice and pasta; tofu and soy milk.
Temperatures
- Potentially hazardous food must be stored or displayed at 4°C or colder, or 60°C or hotter.
- Frozen food must be stored, displayed or transported at −18°C or colder.
- Refrigeration and hot-holding units must hold these temperatures and each must have a thermometer accurate to within 1°C.
The danger zone
- Germs grow quickly between 4°C and 60°C (the "danger zone").
- Do not leave meat, poultry, fish, dairy or cooked leftovers at room temperature for more than 2 hours.
Writing a Food Safety Plan (critical limits)
- Discard perishable food held above 4°C for more than 2 hours.
- Discard hot-held food that has been below 60°C for more than 2 hours.
- Check coolers, cold-holding and hot-holding at least once a day; check built-in thermometers against a second accurate thermometer.
Thermometers
- Colour and texture are unreliable signs that food is cooked; use a food thermometer.
- To check a thermometer, use boiling water (should read 100°C at sea level; lower at high altitude) or an ice-water method; adjust for any error.
Study the Time and temperature control rules as flashcards →
Other topics
- FOODSAFE and the Food Premises RegulationWho must hold FOODSAFE, operating permits, plan approval, notifying a health officer, approved sources, contaminated food and who the regulation covers.
- Foodborne illnessHow common foodborne illness is, high-risk groups, Salmonella, E. coli, norovirus, botulism, Listeria, shellfish poisoning, allergens and illness complaints.
- Personal hygiene and ill workersHand washing steps and timing, handwashing stations, sanitizer, clean clothing and hair, no smoking, covering cuts and keeping ill workers away from food.
- Receiving and storageChecking deliveries, rejecting unsafe food, put-away order, FIFO, labelling, storage height, cooler and freezer temperatures, storage times, chemicals and power failures.
- Cooking, cooling, reheating and thawingSafe internal temperatures, hot holding, two-stage cooling, discard rules, reheating within 2 hours, thawing and microwave heating.
- Cross-contamination and allergensSeparating raw and ready-to-eat food, cutting boards, previously served food, washing produce, covering and storing food, chemicals near food and allergen information.
- Cleaning and sanitizingCleaning versus sanitizing, bleach and quat strengths, test strips, the three-sink method, dishwasher temperatures, surfaces to sanitize and cleaning up after vomiting.
- Food safety and sanitation plansWritten food handling procedures, critical control points and limits, HACCP, monitoring, corrective actions, sanitation plans and approval by a health officer.
- Pests, animals and premisesPests and pesticides, service animals, construction and equipment standards, and what to do during a boil water advisory.