Answer :
Final answer:
A knife must be cleaned and sanitized after peeling potatoes and before slicing carrots to prevent cross-contamination. This practice is essential for maintaining food safety by ensuring that bacteria and residues from one type of food do not transfer to another. Regular cleaning of utensils ensures a safer kitchen environment.
Explanation:
When Must a Knife Be Cleaned and Sanitized?
In food handling, it is crucial to maintain cleanliness to prevent cross-contamination and ensure food safety. The best answer to the question regarding when a knife should be cleaned and sanitized is:
- Od. After peeling potatoes and before slicing carrots
This choice is essential because different food items can carry different bacteria and allergens, so it is vital to clean the knife after finishing one task and before starting another.
Explanation
For instance, after using a knife for peeling potatoes, residues or bacteria from the potatoes can remain on the knife. If you then use the same knife for slicing carrots without cleaning it first, you risk contaminating the carrots with whatever was on the knife. Hence, proper sanitation practices, such as cleaning and sanitizing utensils between different food items, are necessary to ensure food safety.
Other Options Analysis
- Oa. After 4 hours of constant use - This is not a recommended time frame; utensils need to be cleaned immediately after use with different food items.
- Ob. After cutting bread and before cutting rolls - While this is a good practice, it is less critical than cleaning between handling different types of food items that can harbor bacteria.
- Oc. After being stored in a knife block for a day - This would be too long and does not address cleaning after use.
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