Convection VS Radiation

[edro]

Microwaved food cools off much faster than convectional heated food (oven, stove, etc.)

Why?

 

[acemcmac]

Because in soviet russia, the food microwaves you!

 

[Goosemaster]

Because water evaporates?

EDIT: as in Microwave rays make the water boil, and it evaporates, while convection actually introduces energy into everything..

 

[HardcoreRobot]

im not convinced your observation is factual

 

[Bootprint]

Originally posted by: HardcoreRobot
im not convinced your observation is factual

 

[ArmenK]

Maybe your food is not heated evenly and the cooler parts of the food draw heat from the warm parts

 

[edro]

Originally posted by: HardcoreRobot
im not convinced your observation is factual

Are you saying I am just not heating up my food nearly as much in the microwave, so it appears to cool faster? That may be true actually...

 

[Thraxen]

im not convinced your observation is factual

 

[91TTZ]

Originally posted by: edro13
Microwaved food cools off much faster than convectional heated food (oven, stove, etc.)

Why?

False. It doesn't.

End of thread.

 

[Jzero]

Originally posted by: edro13

Originally posted by: HardcoreRobot
im not convinced your observation is factual

Are you saying I am just not heating up my food nearly as much in the microwave, so it appears to cool faster? That may be true actually...

Additionally, the microwave doesn't heat the dish as readily, so the relatively cool dish probably saps heat from the food.

 

[dullard]

Microwaves typically penetrate less than an inch into the food. The outer food layers absorb the waves far before they reach the center. Thus you might have a cold center which is sucking the heat away. In a typical oven, heating is much slower, giving much more time for heat to reach the center. Thus you don't have as much of a cold center sucking the heat out from the outer edges.

 

[OffTopic1]

I don't think microwave cool any quicker than convection. It shouldn't matter what method you head up a medium, because it should take the same amount of time to radiate heat.

Try taking a thermometer and check the core & surface temperature of the medium from microwave and compare it to convection. I found most of the time the core temperature of a microwave dense medium is much cooler than the surface when compare to convection (slow cook give you time to heat up the entire medium).

Try heat up a cup of water in a microwave vs. convection and time the cooling rate to see if it make any different. (I bet you will not find any different in cooling rate).

 

[SandInMyShoes]

As stated above, microwaves make the moisture hot, which in turn heats the food--the drier the food, the more time it takes to heat it.

Also, milk intended for babies isn't supposed to be heated in a microwave, for similar reasons. Think about it.