Question about Microwave Ovens

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Use ifb microwave

Food does not get warm but outside gets hot in a working machine

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You need to power down to 70% this will allow the inside
to heat as well.

Posted on Oct 11, 2013

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SOURCE: micro works and outside gets hot but food does not

give more time

Posted on Aug 17, 2009

SOURCE: my ifb microwave oven is getting hot outside while

Normally when u cook food in microwave the fod is cooked by microwaves, which means the heat is generated with in food. The temperature inside is never too hot and all the heat produced is absorbed with in the food.

On the other hand when the grill is switched on, a separate heatting element gets switched on. You can see this red hot element on the top side of inside of microwave. the heat from this element gets transferred to food through air circulation. But partof heat also gets transferred to the walls of microwave oven. This is the reason the wall feel hot during use of grill.

As i see ther is no problem with the microwave itself. Jut kep delicate thngs a bit away from the microwave.

Posted on Oct 17, 2009

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Back panel of microwave gets hot while in use


would you not also get hot when in use . if you were heating food to be totally cooked .that is why they have a fan in them

Jun 19, 2016 | Magic Chef Microwave Ovens

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Microwaves and how they work. ­T­he microwave oven is one of the...


Microwaves and how they work.

Caption
--> ­T­he microwave oven is one of the great inventions of the 20th century -- millions of homes in America have one. Just think about how many times you use a microwave every day:


Caption
-->
­

­You're running late for work, so there's no time to fix breakfast at home. On your way to the office, you stop to gas up your car. Inside the quickie-mart, you grab a frozen breakfast burrito and pop it in the microwave on the counter. Later that day, you have to work through lunch. By 3:00 p.m., you're starving, so you grab a snack-pa­ck of microwaveable popcorn from the vending machine and pop that in the break-room microwave. That night, after a really long day at work, you're simply too tired to grill out, so you dish up last night's lasagna and heat it up in the microwave...
As you can see, microwave ovens are popular because they cook food in an amazingly short amount of time. They are also extremely efficient in their use of electricity because a microwave oven heats only the food -- and nothing else. In this article, we'll discuss the mystery behind the magic of "meals in a minute" with microwave cooking.

­A m­icrowave oven uses microwaves to heat food. Microwaves are radio waves. In the case of microwave ovens, the commonly used radio wave frequency is roughly 2,500 megahertz (2.5 gigahertz). Radio waves in this frequency range have an interesting property: they are absorbed by water, fats and sugars. When they are absorbed they are converted directly into atomic motion -- heat. Microwaves in this frequency range have another interesting property: they are not absorbed by most plastics, glass or ceramics. Metal reflects microwaves, which is why metal pans do not work well in a microwave oven.

Microwave cooking ­You often hear that microwave ovens cook food "From the inside out." What does that mean? Here's an explanation to help make sense of microwave cooking.
Let's say you want to bake a cake in a conventional oven. Normally you would bake a cake at 350 degrees F or so, but let's say you accidentally set the oven at 600 degrees instead of 350. What is going to happen is that the outside of the cake will burn before the inside even gets warm. In a conventional oven, the heat has to migrate (by conduction) from the outside of the food toward the middle. You also have dry, hot air on the outside of the food evaporating moisture. So the outside can be crispy and brown (for example, bread forms a crust) while the inside is moist.

In microwave cooking, the radio waves penetrate the food and excite water and fat molecules pretty much evenly throughout the food. No heat has to migrate toward the interior by conduction. There is heat everywhere all at once because the molecules are all excited together. There are limits, of course. Radio waves penetrate unevenly in thick pieces of food (they don't make it all the way to the middle), and there are also "hot spots" caused by wave interference, but you get the idea. The whole heating process is different because you are "exciting atoms" rather than "conducting heat."
In a microwave oven, the air in the oven is at room temperature, so there is no way to form a crust. That is why microwavable pastries sometimes come with a little sleeve made out of foil and cardboard. You put the food in the sleeve and then microwave it. The sleeve reacts to microwave energy by becoming very hot. This exterior heat lets the crust become crispy as it would in a conventional oven.




­

on May 07, 2010 | Microwave Ovens

1 Answer

5 yr old microwave has worked perfectly - until now. Put small amount of food on a safe plate in for 45 seconds. Plate suddenly cracked, was extremely hot - and food wasn't even warmed.


The plate wasn't microwave safe or has a crack in it that had moisture in it to cause it to split.
A new pyrex type glass plate will get it going again.

Mar 08, 2011 | Microwave Ovens

1 Answer

Our new microwave heats the containers but not the food. Container is too hot to touch. Food "looks" hot, usually boiling - but food isn't even warm.


Check on the material the containers are made of. If they are not microwave friendly then they will cause problems.
Some materials are designed to "Roast" the contents by absorbing the energy.
Check with a Pyrex glass container and water. The glass should stay fairly cool.

Feb 01, 2011 | Whirlpool MH2175XS Microwave Oven

1 Answer

Food does not get warm


Consensus opinion seems to be a bad magnetron tube. Unless this an expensive model, it might be better to just replace the whole machine. It takes expensive test equipment to service one of these machines and repair costs support this.

Dec 26, 2009 | Microwave Ovens

1 Answer

My ifb microwave oven is getting hot outside while


Normally when u cook food in microwave the fod is cooked by microwaves, which means the heat is generated with in food. The temperature inside is never too hot and all the heat produced is absorbed with in the food.

On the other hand when the grill is switched on, a separate heatting element gets switched on. You can see this red hot element on the top side of inside of microwave. the heat from this element gets transferred to food through air circulation. But partof heat also gets transferred to the walls of microwave oven. This is the reason the wall feel hot during use of grill.

As i see ther is no problem with the microwave itself. Jut kep delicate thngs a bit away from the microwave.

Oct 17, 2009 | LG Microwave Ovens

1 Answer

I have a FMV145BC1 microwave oven, 5 yr old, everything works but food does not get hot!


Does the food get warm at all? My suspicion is you have a bad door switch. Do you open the door while the machine is running, ever? If yes, that is not good for the little contacts on the door safety interlock micro switches. I learned this by burning mine up. The switches are less than $ at a radio supply place and typically, you can change them yourself.

Unplug the machine. Remove the cover and you will find the interlock switches on the handle side of the door, probably on the right hand side. DO NOT TOUCH THE SILVER THING AT THE BACK SIDE OF THE MACHINE - IT IS POTENTIALLY LETHAL EVEN WHEN UNPLUGGED. If you have a volt ohm meter, you can test these switches for open and closed. If they read open when the door is closed, they (or it) is probably bad.

Sep 14, 2009 | Frigidaire FMV145K Microwave Oven

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