How Everything Works
How Everything Works How Everything Works
 

QUESTIONS AND ANSWERS
 
Question 1292

Why does cold water defrost things faster than hot water? — BS, Chicago, IL
I can't think of any situation in which what you say would be true. Hot water should always defrost things faster than cold water. That's because the rate of heat flow between two objects always increases as the temperature difference between them increases. When you put frozen food in hot water, heat flows into that food faster than it would from cold water because the temperature difference is larger.
         

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