Question

While manually washing dishes, Isabella first soaks them in water and then scrubs them to remove dried-on food particles. Next, she cleans the dishes in a detergent solution using a scrub pad. She then rinses the dishes in clean water and puts them in a sanitizer solution. After that, she rinses the dishes, and lastly, places them on the drainboard upside down. What did Isabella do that might contaminate the dishes?

1) Soaking the dishes in water
2) Scrubbing the dishes with a scrub pad
3) Cleaning the dishes in a detergent solution
4) Rinsing the dishes in clean water
5) Putting the dishes in a sanitizer solution
6) Rinsing the dishes again
7) Placing the dishes on the drainboard upside down

Answer 1

The step in Isabella's dishwashing process that might contaminate the dishes is the final rinse after sanitizing, as it can reintroduce contaminants onto the dishes.

Step-by-step explanation:

Isabella’s process of washing dishes is comprehensive, but the step that might contaminate the dishes is the final rinse after they have been placed in a sanitizer solution. Normally, dishes should not be rinsed after being sanitized because it can reintroduce contaminants from the water back onto the dishes. The step of sanitization is designed to leave the surfaces free of pathogens, and an additional rinse, especially if not with sanitized water, could compromise that cleanliness.