MORE Onsite Insights

January 2018’s Onsite Insights, a special section for school nutrition managers, assistant manager and employees, focuses on taking temperatures. While this highly-inclusive in-magazine look at calibration, staying within range and expired food products keeps you busy with puzzles, activities, tips and a favored column by SNA School Nutrition Employee/Manager Representative Donna Myers, this extra online content has just a little more to say that you can apply when taking temperature in your school kitchens.

Temperature Infographic Posters

(courtesy of the Institute of Child Nutrition, November 2015)

Thermometer Calibration

Ice Water Method

  1. Fill a 2-quart measure with ice.
  2. Add water to within 1 inch of top of container.
  3. Stir mixture well.
  4. Let sit for one minute.
  5. Place thermometer in container so that the sensing area of stem or probe is completely submerged over the dimple.
  6. Keep the thermometer from touching sides or bottom of container.
  7. Let thermometer stay in ice water for 30 seconds or until the dial stops moving.
  8. Place the calibration tool on the hex adjusting nut and rotate until the dial reads 32 °F, while in ice water.
  9. Some digital stemmed thermometers (thermistors) and thermocouples have a reset button that should be pushed.
  10. Repeat process with each thermometer.

Ice-Water-Method 

Boiling Water Method

  1. Fill a saucepan or stockpot with water.
  2. Bring water to a rolling boil.
  3. Place thermometer in the container so that the sensing area of the stem or probe is completely submerged over the dimple.
  4. Do NOT let the thermometer stem/probe touch sides or bottom of container.
  5. Let thermometer stay in the boiling water for 30 seconds or until the dial stops moving.
  6. Place the calibration tool on the hex adjusting nut and rotate until the thermometer dial reads 212 °F, while in boiling water.
  7. Some digital thermometers (thermistors) and thermocouples have a reset button that should be pushed.
  8. Repeat process with each thermometer.

Boiling-Water-Method

Safe Minimum Cooking Temperatures

Safe-Minimum-Cooking-Temperatures

Chart courtesy of the Institute of Child Nutrition’s “Mealtime Memo for Child Care,” November 2017

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Arlington, VA 22206
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