How often should thermometers be calibrated and sanitized after use?

• A. Calibrated regularly and sanitized after each use
• B. Calibrated only once a year
• C. Never sanitized
• D. Calibrated only when broken

Answer: (A)

Regular accuracy and hygiene are essential for thermometers. Over time, the sensor can drift, so calibrating on a regular schedule keeps readings true. Sanitizing after each use prevents cross-contamination and protects the next person who will be tested. If you only calibrate once a year, drift might go unnoticed and readings become unreliable; if you never sanitize, you risk spreading germs; if you calibrate only when broken, you may miss small inaccuracies that can still lead to wrong decisions. Keeping both calibration on a routine basis and sanitation after every use ensures reliable results and safer practice.