Cross-Contamination Prevention Flashcards

What is the correct procedure for cleaning a cutting board that was used for raw poultry?

Answer: Scrape off food debris, wash with hot soapy water, rinse with clean water, sanitize with an approved solution, and air dry

The proper sequence is: scrape/remove food debris, wash with hot soapy water to remove grease and particles, rinse with clean water, sanitize with an approved chemical solution or heat, and allow to air dry (towel drying can recontaminate).

How does vacuum packaging reduce the risk of some types of cross-contamination?

Answer: Vacuum packaging creates a sealed barrier that prevents external contaminants, drips, and airborne bacteria from reaching the food

Vacuum packaging provides a physical barrier against external contamination, including drips from other foods, airborne bacteria, and handling. However, it does not kill anaerobic pathogens like C. botulinum and must be paired with proper temperature control.

When receiving food deliveries, how can a food handler prevent cross-contamination?

Answer: Inspect packaging for damage, check temperatures, separate raw from ready-to-eat items during transport to storage, and reject damaged or contaminated items

Receiving is the first line of defence against cross-contamination. Inspecting for damaged packaging (which could allow bacterial entry), checking temperatures, and separating raw from ready-to-eat items during transport to storage prevents contamination.

A food handler wears the same pair of gloves while switching between handling raw shrimp and assembling sandwiches. What is wrong with this practice?

Answer: The handler is transferring pathogens from raw shrimp to the ready-to-eat sandwiches through the contaminated gloves

Gloves contaminated with raw shrimp juices carry the same bacteria as bare contaminated hands. Gloves must be changed between handling raw and ready-to-eat foods, with handwashing in between, to prevent cross-contamination.

What is the significance of the 'clean as you go' practice in preventing cross-contamination?

Answer: Cleaning and sanitizing surfaces, equipment, and utensils immediately after use prevents pathogen buildup and reduces contamination opportunities during subsequent tasks

Clean as you go means addressing spills, debris, and used equipment immediately rather than allowing contamination to accumulate. This reduces the window of opportunity for bacteria to transfer between surfaces and foods.

Why is it important to label and date food items stored in the refrigerator?

Answer: Labelling identifies contents and prevents confusion between similar-looking items, while dating ensures proper rotation (FIFO) and prevents use of food past its safe storage life

Labelling prevents using the wrong product (e.g., mistaking raw marinade for sauce). Dating ensures First In, First Out (FIFO) rotation and that food is used within its safe storage period. Together, they prevent both cross-contamination and spoilage.