CFSP Sanitation and Safety 5 — Questions and Answers
Question 1: Which of the following describes the correct procedure for thawing frozen TCS food?
- On the counter at room temperature for no more than 2 hours
- Submerged in standing cold water in the sink
- In a refrigerator at 41°F (5°C) or below (Correct answer)
- Using warm water of 100°F (38°C) in the sink
Correct answer: In a refrigerator at 41°F (5°C) or below
Thawing in a refrigerator at 41°F or below is the safest method because the food never enters the temperature danger zone.
Question 2: What does FIFO stand for and why is it used in food storage?
- First In, First Out — to use older stock before newer stock (Correct answer)
- First In, First Out — to store newer stock in front of older stock
- Fresh Items First Out — to prioritize perishables over shelf-stable items
- Food Inventory First Out — to reduce shrinkage and waste
Correct answer: First In, First Out — to use older stock before newer stock
FIFO (First In, First Out) ensures that older products are used before newer ones, reducing the risk of serving expired or spoiled food.
Question 3: A food handler accidentally mixes bleach and ammonia-based cleaners. What is the primary risk?
- Reduced cleaning effectiveness only
- Production of toxic chloramine gases (Correct answer)
- Chemical contamination of nearby food only
- Damage to stainless steel equipment surfaces
Correct answer: Production of toxic chloramine gases
Mixing bleach (sodium hypochlorite) with ammonia produces toxic chloramine gases that are hazardous to inhale.
Question 4: What is the purpose of a Material Safety Data Sheet (SDS/MSDS) in a foodservice operation?
- To document food temperature logs for regulatory compliance
- To provide safety, handling, and emergency information for hazardous chemicals (Correct answer)
- To record employee training completion for chemical use
- To list approved sanitizer concentrations for different surfaces
Correct answer: To provide safety, handling, and emergency information for hazardous chemicals
An SDS (Safety Data Sheet) provides critical information about hazardous chemicals including safe handling procedures, first aid, and emergency response.
Question 5: Which pathogen is most commonly linked to undercooked ground beef and can cause hemolytic uremic syndrome (HUS)?
- Campylobacter jejuni
- Staphylococcus aureus
- Escherichia coli O157:H7 (Correct answer)
- Clostridium perfringens
Correct answer: Escherichia coli O157:H7
E. coli O157:H7 is associated with undercooked ground beef and can cause HUS, a life-threatening kidney complication especially in children.
Question 6: How frequently should food contact surfaces be cleaned and sanitized during continuous use?
- Every 2 hours
- Every 4 hours (Correct answer)
- Every 6 hours
- Every 8 hours
Correct answer: Every 4 hours
The FDA Food Code requires food-contact surfaces to be cleaned and sanitized at least every 4 hours during continuous use to prevent pathogen buildup.
Question 7: Which type of contamination occurs when a food handler uses the same cutting board for raw chicken and then fresh salad greens without washing it?
- Biological contamination via direct cross-contamination (Correct answer)
- Chemical contamination from sanitizer residue
- Physical contamination from equipment contact
- Radiological contamination from food processing equipment
Correct answer: Biological contamination via direct cross-contamination
Using the same cutting board for raw poultry and ready-to-eat salad greens transfers biological pathogens directly from one food to another.
CFSP Sanitation and Safety 5
Which of the following describes the correct procedure for thawing frozen TCS food?