Which of the following is crucial for preventing foodborne illness?

While proper food storage is certainly important in preventing foodborne illness, the most crucial factor in this context is frequent hand washing. Hand washing is the most effective way to eliminate pathogens from hands after they have come into contact with contaminated surfaces or food, and before handling food. This simple action significantly reduces the risk of transmitting harmful bacteria that can cause foodborne illnesses.

Proper food storage indeed plays a key role by ensuring that food is kept at safe temperatures and preventing growth of bacteria. Cooking food at high temperatures also helps to kill pathogens, and using disposable utensils can minimize cross-contamination. However, without consistent and thorough hand washing, food handlers may inadvertently contaminate food regardless of how well they store, cook, or serve it.