Certified Professional Food Safety (CP-FS) Practice Exam

What is the recommended time for scrubbing hands under running water during handwashing?

1. 5-10 seconds

2. 10-15 seconds

3. 15-20 seconds

4. 20-25 seconds

The correct answer is: 10-15 seconds

The recommended time for scrubbing hands under running water during handwashing is critical for effectively removing dirt, bacteria, and viruses. Scrubbing for 10-15 seconds is considered an adequate duration to ensure that all surfaces of the hands, including between fingers and under nails, are thoroughly washed. This time frame allows for a sufficient mechanical action to break down and dislodge contaminants from the skin. Research and guidelines by health authorities emphasize that these scrubbing times are optimal for achieving proper hygiene without being excessively long, which might deter individuals from washing their hands effectively. By adhering to this recommended time, individuals can significantly reduce the risk of foodborne illnesses and support overall public health. Longer durations, although beneficial in some contexts, may not be necessary for general handwashing practices, whereas shorter times are often insufficient to remove pathogens effectively. Therefore, 10-15 seconds strikes a balance between effectiveness in cleaning and practicality in encouraging frequent handwashing.