It is normal for the outside of microwaves to get hot. This heat is normal and comes from a power transformer behind the control panel. Don’t be worried when you are heating up food and the microwave feels a little warm.
Why do microwaves get hot on the outside?
Microwave ovens use quite a bit of power. Most of the energy is directed at the food.
Some energy is wasted due to resistance. The magnetron tube has a filament that must generate heat to excite the electrons to move with ease. Then you have a large transformer that will generate heat.
The heat you feel from the box or airflow from the back is a small percentage of the heat generated in the food. There also are air ducts that allow for steam to be released from the inside of the microwave.
is it bad for Microwaves to get hot on the outside?
Hot and warm are very different temperatures. If your microwave is hot to the point it burns you then something is faulty in your microwave.
It is very normal and safe for microwaves to be warm.
Can a microwave get too hot?
Yes, it is possible for a microwave to overheat and shut off. Microwaves heat water molecules in food. If there are no water molecules to heat up then it could overheat.
Another way a microwave could overheat is the cooling fan breaking down. Without the cooling fan to regulate temperature the microwave could overheat quickly. You should be able to hear the fan blowing when you turn on the microwave. If you do not hear a fan then it may be broken.
Most new microwaves have an automatic shut-off feature that will prevent the microwave from ever overheating.
Can a microwave catch on fire?
Yes, microwaves can get hot enough to be a fire hazard and even cause painful burns. Overall microwaves are safe and a very efficient way to heat up food. Here are some tips to ensure you use your microwave safely.
Microwave fire safety tips:
- Read safety precautions before using
- Never attempt to microwave non-microwavable items
- Do not leave microwave oven unattended when microwaving popcorn
- If there is a fire inside your microwave do not open untill the fire suffocates itself. Dont open untill sure the fire is out.
- Never use recycled paper products in microwave vens unless they are approved for micrwave use.
Here are some more helpful tips!
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