Question

What is the moist heat method that depends largely on time, because the temperature cannot reach above 100°C?

1) Boiling
2) Steaming
3) Baking
4) Grilling

Answer 1

The moist heat method that depends largely on time and cannot exceed 100°C is boiling, which is used for microbial control but may not kill all types of microbes like endospores.

Step-by-step explanation:

The moist heat method that depends largely on time because the temperature cannot reach above 100°C is boiling. When boiling, water is vaporized to steam at 100°C and the transition requires the absorption of the molar heat of vaporization. This is a commonly used method for microbial control in methods such as cooking and pasteurization, which can effectively kill vegetative cells and some viruses. However, it may be less effective at higher altitudes where the boiling point of water is lower. Considering the parameters of microbial death like the thermal death point (TDP) and thermal death time (TDT), boiling is one of the oldest moist-heat control methods but is not reliable for killing all types of microbes such as heat-resistant endospores.