Final answer:
A food worker must wash his hands after handling a customer's credit card to prevent contamination and maintain proper food safety hygiene. the correct option is d. Handling a customer's credit card . the correct option is d. Handling a customer's credit card.
Step-by-step explanation:
The task that would require a food worker to wash his hands after completing it is d. Handling a customer's credit card. Food safety regulations emphasize on the importance of hand hygiene to prevent cross-contamination and the spread of pathogens. Credit cards are frequently handled objects that can harbor various microorganisms, potentially transferring them to food or clean surfaces if hands are not properly washed.
These steps include wetting hands, applying soap, scrubbing hands for at least 20 seconds, rinsing hands under clean running water, and finally drying hands with a clean towel or air dryer. It is important that food workers wash hands after any activity that could lead to contamination, which includes handling money or credit cards, after using the toilet, after touching anything that could be dirty or after coming into contact with bodily fluids.