Final answer:
The thermometer probe should be placed in the thickest part of the food for an accurate reading. This ensures the food is cooked throughout and safe to eat. The Celsius scale reference point is the freezing point of water, which is essential for proper temperature reading. b. Thickest
Step-by-step explanation:
You should place a thermometer probe into the thickest part of the food for the most accurate reading. Measuring temperature in the thickest part ensures that the food is cooked safely throughout; the center of the thickest part is usually the coldest, therefore the best indicator of whether the food has reached a safe internal temperature. For example, in a chicken breast, you would insert the thermometer in the thickest part, avoiding bones and fat which can give misleading readings.
Considering temperature measurement principles and ensuring that food reaches a high enough temperature to kill any bacteria it contains are crucial factors for food safety. Using a thermometer correctly can prevent undercooking, which could lead to foodborne illness.
The Celsius scale uses the freezing point of water as a reference point, which is also essential in gauging the correct temperature readings. Understanding the functionality and calibration of different thermometers, such as alcohol-based, liquid crystal, or pyrometer thermometers, can also play a part in achieving accurate temperature readings.