Reading matches the reference within tolerance.
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Equipment family guide
Temperature and testing tools
Infrared and probe thermometers answer different questions. Infrared reads surface temperature and cannot prove the center of a liquid or food is cold; a probe reads internal temperature but requires insertion, cleaning and response time. The bar must use each within its limits.
Bar equipment operational guide
Temperature and testing tools: working standard
The Temperature and testing tools equipment standard covers job fit, rated capacity, safe setup, cleaning, maintenance and the defect that removes the tool from service.
Selection, capacity and installation decisions
- Choose temperature range, response time, accuracy and probe style for the actual products tested.
- Use infrared only for surface screening and account for shiny metal, glass and distance-to-spot limitations.
- Use a sanitized probe for internal liquid or food temperature when the measurement requires it.
- Create calibration checks using ice-point or another approved reference.
- Store the instrument where the sensor stays protected and batteries remain available.
Equipment role and specification map
| Subject | Operational role | Critical control | Common failure |
|---|---|---|---|
| Infrared thermometer | Infrared thermometer — temperature-control tool that verifies holding, ice production or equipment performance. | For Infrared thermometer, calibrate where applicable, place correctly and record a trend rather than one reading. | With Infrared thermometer, using an infrared surface reading as a substitute for internal temperature. |
| Probe thermometer | Probe thermometer — temperature-control tool that verifies holding, ice production or equipment performance. | For Probe thermometer, calibrate where applicable, place correctly and record a trend rather than one reading. | With Probe thermometer, using an infrared surface reading as a substitute for internal temperature. |
Commissioning, use and maintenance standard
- Inspect and calibrate before the shift or production task.
- Clean and sanitize probe stems before and after each insertion.
- Allow the reading to stabilize and record location, product and time.
- When infrared screening shows a concern, confirm with the correct internal method.
- Remove instruments that drift, have damaged probes or cannot be cleaned.
Performance and condition controls
Surface or internal temperature is measured with the correct sensor.
The reading is allowed to stabilize.
Probe contact does not transfer contamination between products.
Equipment failure diagnosis
An infrared reading is treated as internal product temperature.
Shiny metal or glass gives a misleading infrared result.
The stem moves between products without cleaning and sanitizing.
Battery-powered confidence replaces calibration.
Records that make the standard enforceable
- Asset identity and assigned station
- Commissioning or calibration result
- Cleaning and preventive-maintenance log
- Defect, repair and retirement decision
Training and sign-off
Measure ice water, a bottle surface, liquid center and refrigerated garnish using both instruments. The trainee must explain the differing readings, calibrate the probe and choose the defensible measurement for each control point.
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