Final answer:
Cutting boards must be sanitized at least twice a day to prevent the spread of bacteria and foodborne illnesses.
Step-by-step explanation:
The cutting boards must be sanitized at least twice a day to maintain cleanliness and prevent the spread of bacteria.
Regular sanitization is important because cutting boards can harbor harmful bacteria that can contaminate food and cause foodborne illnesses.
To properly sanitize a cutting board, wash it with hot soapy water after each use, then rinse it thoroughly. You can also use a diluted bleach solution (1 tablespoon of bleach per gallon of water) to sanitize the cutting board.