FOODSAFE Cleaning and Sanitizing 3

Question 1

What is the difference between a food-contact surface and a non-food-contact surface?

Accepted Answer

Food-contact surfaces directly touch food (cutting boards, utensils, plates) and require sanitizing; non-food-contact surfaces (floors, walls) require regular cleaning

Answer

There is no meaningful difference

Answer

Non-food-contact surfaces need more frequent cleaning

Answer

Only food-contact surfaces need cleaning

Question 2

How should a mechanical dishwasher be maintained for effective sanitizing?

Accepted Answer

Regularly check wash and rinse temperatures, inspect spray arms, clean filters, and verify sanitizer concentration or rinse temperature daily

Answer

Run it only when it is completely full

Answer

It maintains itself and does not need attention

Answer

Only call a technician when dishes come out dirty

Question 3

What is the minimum water temperature for the final rinse in a commercial high-temperature dishwasher?

Accepted Answer

82°C (180°F)

Answer

60°C (140°F)

Answer

71°C (160°F)

Answer

100°C (212°F)

Question 4

What should a food handler do if they accidentally mix two different cleaning chemicals?

Accepted Answer

Immediately ventilate the area, evacuate if necessary, consult the SDS for both products, and report the incident to a supervisor

Answer

Use the mixture since it will be extra effective

Answer

Pour the mixture down the drain

Answer

Continue cleaning as if nothing happened

Question 5

Why is it important to let sanitizer remain on a surface for the recommended contact time?

Accepted Answer

The sanitizer needs a specific minimum contact time (dwell time) to effectively kill bacteria — removing it too soon reduces its effectiveness

Answer

Sanitizer works instantly upon contact

Answer

Contact time is only important for oven cleaners

Answer

Longer contact time saves sanitizer

Question 6

What is the correct procedure for cleaning and sanitizing a deep fryer?

Accepted Answer

Drain and dispose of oil properly, scrub interior with appropriate cleaner, rinse thoroughly to remove all chemical residue, and refill with fresh oil

Answer

Drain the oil and wipe with a paper towel

Answer

Add cleaning chemical directly to the hot oil

Answer

Leave old oil in and add fresh oil on top