What is a crucial step in maintaining proper sanitation in the home kitchen?

Washing hands frequently, especially after handling raw foods, is a crucial step in maintaining proper kitchen sanitation because hands are the most common vehicle for transferring harmful bacteria between surfaces, raw ingredients, and ready-to-eat food.

Raw meat, poultry, fish, and eggs can harbour dangerous pathogens such as Salmonella, Campylobacter, and E. coli. If a cook handles these raw foods and then touches other surfaces, utensils, or ready-to-eat food without washing their hands, the pathogens transfer through this cross-contamination.

The other options describe practices that actually compromise sanitation:

• Disposing of trash in open containers attracts pests and allows bacteria to spread through the kitchen environment.
• Storing raw meat, poultry, and seafood above ready-to-eat foods is dangerous because raw juices can drip down and contaminate the foods below. Raw items should always be stored on the lowest shelves.
• Using the same cutting board for all food types facilitates cross-contamination. Separate boards (or thorough sanitisation between uses) should be used for raw meats and for ready-to-eat foods like vegetables and bread.