Minnesota Administrative Rules
Agency 144 - Health Department
Chapter 4626 - FOOD CODE; FOOD MANAGERS
EQUIPMENT DESIGN AND CONSTRUCTION
Part 4626.0620 - AMBIENT AIR TEMPERATURE MEASURING DEVICES. 4-204.112

A. In a mechanically refrigerated or hot food storage unit, the sensor of a temperature measuring device must be located to measure the air temperature or a simulated product temperature in the warmest part of a mechanically refrigerated unit and in the coolest part of a hot food storage unit.

B. Except as specified in item C, cold or hot holding equipment used for TCS food must be designed to include and shall must be equipped with at least 1 integral or permanently affixed temperature measuring device that is located to allow easy viewing of the devices temperature display.

C. Item B does not apply to equipment for which the placement of a temperature measuring device is not a practical means for measuring the ambient air surrounding the food because of the design, type, and use of the equipment, such as calrod units, heat lamps, cold plates, bainmaries, steam tables, insulated food transport containers, and salad bars.

D. Temperature measuring devices must be designed to be easily readable.

E. Food temperature measuring devices and water temperature measuring devices on warewashing machines must have a numerical scale, printed record, or digital readout in increments no greater than 2 degrees F or 1 degree C in the intended range of use.P2