Thermometers

•A thermometer is an instrument that is used to measure temperature.

•Thermo means heat

•Meter means to measure

What is a thermometer?

To determine if the food was safe to eat, completely cooked, or in the danger zone.

Why would you use the thermometer with foods?

Temperature is measured on two scales: Celsius and Fahrenheit.

98.637 C F

The Fahrenheit scale is the most popular in the United States.

Its symbol is “F.”

F

is the symbol for degrees.

100o is read 100 degrees

Temperature is measured in degrees.

Types of food thermometers

digital instant-readdial oven-safe

oven probe with cord

disposable temperature

indicatorsthermometer forkcombination

dial instant-read

Danger Zone

The Food Danger Zone is __________.41° to 135°

Freezer TemperatureFreezers should be 0 degrees F or less

Refrigerator TemperatureRefrigerator temperatures should be 41

degrees or less

155

Ground Meat (Beef, Pork, Lamb)Cook ground meats to

155 degrees F

Poultry (Chicken & Turkey)Cook poultry to

165 degrees F

Holding Hot FoodsHold hot foods at 135 degrees F

Reheating LeftoversReheat leftovers until a temperature of

165°F is reached throughout the food.

Proper procedure for taking temperature of food.Wipe thermometer clean.Stick into thickest part of food (away from bone) or in the

middle of a liquid. (Internal Temperature)Wait until needle or fluid stop moving. (15 seconds for

quick read)

Calibrating a Thermometer Fill a 2 quart container with ice and add water to 1” from the top

of the container. Stir and let sit for 1 minute. Insert the thermometer into the ice water (don’t touch sides or

bottom and DON’T submerge the dial). Let the thermometer stay in the water for about 30 seconds. Adjust the hex – while in the water until the dial reads 32 F

Sanitation Lab3 steaks per kitchenCook one to 145, one to 155 and one to 165 degreesTake the temperature correctly – as shown in classEvaluate each for taste, color and texture – on your lab

sheetNo seasoning except salt and pepperAfter you evaluate you can use steak sauce