What is the ideal refrigerator thermometer reading during a 12-24 hour run test?

The ideal refrigerator thermometer reading during a 12-24 hour run test should fall within a range that ensures food safety as well as optimal operation of the refrigerator unit. The correct answer indicates a temperature range of 40 to 43°F, which is slightly above the generally recommended safety threshold for refrigeration.

Food safety guidelines typically advise that perishable foods are best stored at temperatures below 40°F to mitigate the risk of bacterial growth. However, the chosen answer of 40 to 43°F acknowledges practical operating conditions where certain foods may still be adequately protected, particularly when the upper limit is slightly above 40°F.

Additionally, refrigerator thermometers can have variations, and manufacturers may recommend slightly higher temperatures based on the design and insulation properties of the unit.

Understanding this range helps ensure that the refrigerator is functioning correctly and can keep food safe. Monitoring within this range can assist in identifying potential issues with the appliance, allowing for interventions before food safety is compromised.