How often should thermometers be calibrated?

How often should thermometers be calibrated?

• A. Calibrate regularly (daily or weekly) and after dropping or large temperature swings.
• B. Daily or weekly
• C. Monthly
• D. Never

Answer: (A)

Thermometers can drift with use, handling, and sudden temperature changes. Keeping their readings accurate is essential because you rely on those numbers to cook foods to safe temperatures, cool them properly, and keep hot-held foods safe. Calibrating regularly ensures you have a trustworthy baseline for everyday checks, while calibrating again after a drop or after large temperature swings catches any sudden shifts that could compromise accuracy. So, calibrating on a regular schedule (daily or weekly) and also after events that could affect the sensor — like a fall, bump, or big temperature change — is the best practice. This helps prevent undercooking or overcooking and keeps both safety and quality up to standard. When calibrating, use the ice-water method (aim for 32°F) and the boiling-water method (aim for 212°F at sea level) and adjust per your thermometer’s instructions.

Thermometers can drift with use, handling, and sudden temperature changes. Keeping their readings accurate is essential because you rely on those numbers to cook foods to safe temperatures, cool them properly, and keep hot-held foods safe. Calibrating regularly ensures you have a trustworthy baseline for everyday checks, while calibrating again after a drop or after large temperature swings catches any sudden shifts that could compromise accuracy.

So, calibrating on a regular schedule (daily or weekly) and also after events that could affect the sensor — like a fall, bump, or big temperature change — is the best practice. This helps prevent undercooking or overcooking and keeps both safety and quality up to standard. When calibrating, use the ice-water method (aim for 32°F) and the boiling-water method (aim for 212°F at sea level) and adjust per your thermometer’s instructions.