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The 2026 FDA Food Code says food temperature measuring devices must be calibrated in accordance with the manufacturer’s specifications as necessary to ensure accuracy.
More key points
- It does not set one universal calendar interval for every food thermometer; the instrument and manufacturer’s instructions determine the appropriate calibration procedure and need.
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A temperature reading is useful only if the instrument is accurate enough for its job. A probe that reads several degrees off can make a safe food look unsafe or, more seriously, make inadequately controlled food appear compliant. Calibration checks whether the measuring device gives a dependable reading and allows adjustment when the design permits it.
What the 2026 Food Code says
Section 4-502.11(B) of the FDA Food Code 2026 requires food temperature measuring devices to be calibrated in accordance with the manufacturer’s specifications as necessary to ensure accuracy. The wording ties calibration to the particular instrument’s specifications and accuracy needs. It does not prescribe a single weekly or monthly schedule that applies to every thermometer.
Calibration is different from cleaning
Cleaning and sanitizing a probe protect food from contamination; they do not confirm measurement accuracy. Conversely, calibration does not make a dirty probe safe to insert into ready-to-eat food. Treat sanitation and measurement checks as separate controls, and follow the required cleaning and sanitizing steps between uses.
A practical control routine
- Identify each food thermometer and locate the manufacturer’s calibration instructions.
- Use the specified method and reference conditions; do not improvise a procedure that the instrument does not support.
- Compare the reading with the expected reference and adjust or replace the device if it falls outside its intended accuracy.
- Recheck after events that may affect accuracy, such as impact or abnormal use, when the manufacturer’s instructions call for it.
- Keep the device clean, in good repair, and suitable for the temperature range and food being measured.
Do not apply the wrong thermometer standard
The Food Code separately requires ambient-air, water-pressure, and water-temperature measuring devices to be maintained in good repair and accurate within their intended range of use. That wording is distinct from the manufacturer-calibration requirement for food temperature devices. Read the question’s instrument carefully before selecting the rule.
The model-code caveat
FDA publishes the Food Code as a model for state, local, tribal, territorial, and federal jurisdictions. A jurisdiction may adopt a particular edition or another equivalent rule, and local adoption can lag. Use the edition specified by a course or exam question, and check the governing local code in a real establishment.
Exam takeaway
Remember the exact principle: calibrate food temperature measuring devices under manufacturer specifications as necessary for accuracy. Avoid inventing a universal interval, and keep calibration distinct from cleaning, sanitizing, and routine condition checks.
Common questions
How often must every food thermometer be calibrated?
The 2026 FDA Food Code does not state one universal interval; calibration follows manufacturer specifications as necessary to ensure accuracy.
Does sanitizing a probe calibrate it?
No. Sanitizing addresses contamination; calibration addresses measurement accuracy.
Is the FDA Food Code automatically the law in every state?
No. It is a model code offered for adoption. The applicable jurisdiction’s adopted rules control.