Independent buying guidance · Australia editionHow we work

Category hub

Cooking Thermometer Calibration and Accuracy Checks

Learn when cooking thermometer calibration is possible, how routine checks work and what to record for food-safety use.

Cooking thermometer calibration is the adjustment of an instrument against a known reference; many home thermometers only allow an accuracy check. Ice-point and boiling-point checks can reveal an offset, but boiling temperature depends on atmospheric pressure and elevation. In food service, follow the business procedure, record results and remove unreliable instruments from use.

Cooking Thermometer Calibration and Accuracy Checks

Common questions

Questions before you buy

Is an accuracy check the same as calibration?

No. A check identifies error; calibration adjusts the instrument when the design permits it.

Why does boiling water not always read the same?

Boiling temperature changes with atmospheric pressure and elevation.

What belongs in a calibration log?

Record the thermometer ID, date, reference method, result, adjustment and person responsible.

What if a thermometer cannot be adjusted?

Apply only an approved correction procedure or replace it if it is outside the required tolerance.