TFM Cross-Contamination Prevention 2

Question 1

What is the difference between cleaning and sanitizing?

Accepted Answer

Cleaning removes dirt and food; sanitizing reduces pathogens to safe levels

Answer

Cleaning removes visible dirt and food debris, while sanitizing uses heat or chemicals to reduce microorganisms to safe levels — both steps are required.

Question 2

What must be done to a food contact surface before sanitizing?

Accepted Answer

Clean the surface with soap and water and rinse first

Answer

Surfaces must be cleaned and rinsed before sanitizing because food debris and soap residue can inactivate chemical sanitizers.

Question 3

A chef uses the same tongs to handle raw shrimp and then places cooked shrimp on a serving platter. This is an example of:

Accepted Answer

Direct cross-contamination

Answer

Using unwashed tongs from raw to cooked shrimp directly transfers pathogens from the raw food to the ready-to-eat food, causing direct cross-contamination.

Question 4

What is the purpose of using separate equipment for raw proteins versus ready-to-eat foods?

Accepted Answer

To prevent pathogens from raw foods contaminating foods that won't be cooked

Answer

Dedicated equipment for raw proteins prevents their pathogens from transferring to ready-to-eat foods that have no further cooking step to eliminate contamination.

Question 5

Which of the following scenarios represents chemical cross-contamination?

Accepted Answer

Cleaning chemical residue left on a cutting board used for food prep

Answer

Chemical cross-contamination occurs when cleaning or sanitizing chemicals are transferred to food or food contact surfaces, contaminating the food.

TFM - Texas Food Manager Practice Test

TFM - Texas Food Manager Practice Test

TFM Cross-Contamination Prevention 2