Cross-Contamination Prevention Flashcards

A food handler needs to taste a sauce while cooking. What is the correct method to avoid cross-contamination?

Answer: Use a clean spoon to transfer a small amount to a separate dish, taste from that dish, and place the tasting spoon in the wash

The two-spoon or transfer method prevents saliva and oral bacteria from entering the food. A clean spoon transfers food to a separate tasting dish, and the tasting utensil goes directly to the dish pit.

What is the risk of using the same sink for washing produce, raw meat, and hands?

Answer: Pathogens from raw meat or hands can remain on sink surfaces and contaminate produce, even after rinsing with water alone

Sinks can harbour pathogens in crevices and drains. Rinsing alone does not sanitize the sink. Using the same sink for raw meat and produce creates a cross-contamination pathway. Separate sinks or thorough wash-rinse-sanitize cycles are required.

How should shared equipment like meat slicers be managed to prevent cross-contamination?

Answer: Clean, rinse, and sanitize the slicer every 4 hours during continuous use, and between different food types

Meat slicers must be completely disassembled, cleaned, rinsed, and sanitized at least every 4 hours during continuous use and whenever switching between food types. Biofilm can develop on slicers, harbouring Listeria and other pathogens.

What is biofilm and why is it a cross-contamination concern?

Answer: A layer of bacteria that adheres to surfaces, protected by a self-produced matrix, making it resistant to regular cleaning and sanitizing

Biofilm is a community of bacteria that attaches to surfaces and produces a protective matrix. This makes the bacteria much more resistant to cleaning chemicals and sanitizers, allowing them to persist on equipment and contaminate food.

A customer informs the server that they have a severe peanut allergy. What steps should the kitchen take?

Answer: Communicate the allergy to all kitchen staff, prepare the order using allergen-free utensils and surfaces, verify all ingredients, and confirm no cross-contact occurred

Severe allergies can cause anaphylaxis, which is life-threatening. The entire kitchen team must be aware. Preparation must use clean, dedicated equipment; all ingredients must be verified; and the process must prevent any cross-contact with peanuts.

Why should ice used to display food not be used for drinks?

Answer: Ice used to display food may have been contaminated by juices from the food, bacteria from handling, or chemicals and is no longer safe for consumption

Ice used to chill or display food products (like raw seafood) can absorb juices, bacteria, and other contaminants from the food. It is no longer safe for human consumption and must be discarded, not repurposed for beverages.