Question

9 what device can be used to monitor both time and temperature abuse during the shipment or storage of food? a infrared thermometer b time - temperature indicator c thermistor with an air probe d bimetallic stemmed thermometer 10 how long can food stay in the temperature danger zone before it must be thrown out? a 1 hour b 2 hours c 3 hours d 4 hours

Explanation:

• Question 9:
• An infrared thermometer measures temperature from a distance by detecting infrared energy.
• A thermistor with an air probe measures temperature based on the change in electrical resistance with temperature.
• A bimetallic stemmed thermometer measures temperature using the different expansion rates of two metals.
• A time - temperature indicator (TTI) is designed to monitor both time and temperature exposure. It can show if a food product has been subjected to temperature abuse over a certain period during shipment or storage.
• Question 10:
• The temperature danger zone is typically \(41^{\circ}F - 135^{\circ}F(5^{\circ}C - 57^{\circ}C)\).
• According to food safety guidelines, food should not stay in the temperature danger zone for more than 2 hours. After 2 hours, the risk of bacterial growth to unsafe levels increases significantly.

Answer:

• Question 9: B. Time - temperature indicator
• Question 10: B. 2 hours