CDM Quality Control & Food Safety Standards 5 — Questions and Answers
Question 1: Which cleaning chemical should NEVER be mixed with bleach-based sanitizers in a doughnut production area?
- Quaternary ammonium compounds
- Ammonia-based cleaners (Correct answer)
- Enzyme-based degreasers
- Oxygen-based cleaners
Correct answer: Ammonia-based cleaners
Mixing bleach with ammonia creates toxic chloramine gases, posing serious health risks to food handlers in the production area.
Question 2: A quality control audit reveals that doughnut hole size varies by more than 15% between batches. The FIRST corrective step should be to:
- Replace the cutter immediately
- Calibrate and standardize the depositor or cutter settings (Correct answer)
- Increase proofing time to allow dough to expand uniformly
- Adjust the glaze recipe to mask visual differences
Correct answer: Calibrate and standardize the depositor or cutter settings
Inconsistent portioning is typically an equipment calibration issue; standardizing the depositor or cutter is the first and most direct corrective action.
Question 3: What is the purpose of a microbiological environmental monitoring program in a doughnut facility?
- To track humidity levels around the fryer
- To detect pathogen or indicator organism contamination on surfaces and in air (Correct answer)
- To measure CO2 levels from active yeast fermentation
- To confirm ingredient supplier certifications
Correct answer: To detect pathogen or indicator organism contamination on surfaces and in air
Environmental monitoring uses swabs and air samples to detect the presence of organisms like Listeria or coliforms on equipment and production surfaces.
Question 4: Which temperature range is known as the 'danger zone' for food safety, where bacterial growth is most rapid?
- 32°F to 70°F (0°C to 21°C)
- 41°F to 135°F (5°C to 57°C) (Correct answer)
- 50°F to 145°F (10°C to 63°C)
- 60°F to 165°F (16°C to 74°C)
Correct answer: 41°F to 135°F (5°C to 57°C)
The FDA Food Code defines the temperature danger zone as 41°F to 135°F, the range where most foodborne pathogens multiply rapidly.
Question 5: A doughnut shop receives a customer complaint about finding a hard plastic fragment in a product. This is classified as a:
- Biological hazard
- Chemical hazard
- Physical hazard (Correct answer)
- Radiological hazard
Correct answer: Physical hazard
Foreign objects such as plastic, metal, or bone fragments are classified as physical hazards in food safety frameworks like HACCP.
Question 6: Which proofing condition set is MOST likely to result in over-proofed yeast doughnuts that collapse during frying?
- 75°F, 65% relative humidity, 45 minutes
- 95°F, 90% relative humidity, 75 minutes (Correct answer)
- 85°F, 75% relative humidity, 55 minutes
- 70°F, 60% relative humidity, 60 minutes
Correct answer: 95°F, 90% relative humidity, 75 minutes
Excessively high temperature and humidity accelerate yeast activity, weakening gluten structure so doughnuts over-expand and collapse under frying stress.
Question 7: Corrective actions recorded in a HACCP log when a critical limit is exceeded must include which of the following?
- Only the name of the employee who caused the deviation
- The deviation found, action taken, product disposition, and responsible person (Correct answer)
- The cost impact of the out-of-spec batch
- A signed customer waiver for the affected product
Correct answer: The deviation found, action taken, product disposition, and responsible person
HACCP corrective action records must document what went wrong, what was done to fix it, what happened to the affected product, and who was responsible.
CDM Quality Control & Food Safety Standards 5
Which cleaning chemical should NEVER be mixed with bleach-based sanitizers in a doughnut production area?