How often should you mix a fresh bleach solution?

• A. Every 24 hours
• B. Every 2 weeks
• C. Every 6 hours
• D. Only when empty

Answer: (A)

Bleach loses its disinfecting strength quickly, especially after being exposed to air and light, so it must be prepared fresh each day to ensure proper disinfection of tools and surfaces. In practice, you mix a new bleach solution daily and use it throughout the day, discarding any leftover at the end, and you follow the label for the correct concentration and contact time. Using an older solution risks incomplete disinfection and potential pathogen survival. Options that imply mixing less often or only when empty don’t provide reliable sanitation, while mixing too frequently isn’t necessary beyond daily renewal.