Final answer:
The three types of thermometers commonly used in food operations are alcohol thermometers, liquid crystal thermometers, and infrared radiation (pyrometer) thermometers.
Step-by-step explanation:
Three Types of Thermometers Used in Food Operations -
The three types of thermometers commonly used in food operations are:
- Alcohol Thermometers: These thermometers use alcohol as the liquid inside the reservoir. The alcohol expands when heated and contracts when cooled, causing the liquid column to change length.
- Liquid Crystal Thermometers: Liquid crystal thermometers use liquid crystals that change color in response to temperature. They are often used in food safety applications for quick temperature checks.
- Infrared Radiation (Pyrometer) Thermometers: These thermometers measure temperature by detecting and measuring the infrared radiation emitted by an object. They are non-contact and useful for measuring the surface temperature of food without direct contact.