Final answer:
A meat thermometer is the appropriate probe to check the temperature of a large stockpot of chili.
Step-by-step explanation:
A meat thermometer would be appropriate to check the temperature of a large stockpot of chili. The meat thermometer is designed to measure the internal temperature of meat, but it can also be used to measure the temperature of liquid in a stockpot. To use the thermometer, insert the probe into the chili, making sure it is submerged but not touching the bottom of the pot. Wait a few seconds for the temperature reading to stabilize, and then carefully remove the thermometer to view the temperature.