Why is cleaning performed before sanitizing on food-contact surfaces?

• A. To remove soil so sanitizer works effectively
• B. To save water
• C. It is optional
• D. Sanitizer works best without cleaning

Answer: (A)

Cleaning before sanitizing is about making sure the sanitizer can actually do its job. Soils and organic matter on a food-contact surface create a barrier that shields microbes from contact with the sanitizer and can react with or neutralize sanitizer chemicals, reducing their effectiveness. Cleaning removes fats, proteins, sugars, and debris, and detergents help break these substances up so they can be rinsed away. Once the surface is clean, the sanitizer can evenly contact remaining microbes and maintain the necessary contact time to reduce the microbial load. Sanitizing dirty surfaces often leaves residues and doesn’t reliably kill organisms. That’s why the correct sequence is cleaning first, then sanitizing. The other options aren’t correct because the goal isn’t water savings, the step isn’t optional, and sanitizers don’t work best on dirty surfaces.