Putting metal inside a microwave oven while it is on can be extremely dangerous and can cause serious damage to the oven itself. When microwaves encounter metal, the metal reflects the microwaves and can cause a phenomenon known as "arcing." Arcing is when electrical sparks discharge between the metal object and the interior metal walls of the microwave. Here's what happens if you put metal inside a microwave:
Sparks and Fire: The arcing caused by the presence of metal can result in sparks inside the microwave. These sparks can ignite flammable materials and potentially lead to a fire. In worst-case scenarios, fires caused by metal in microwaves can spread and cause significant damage to the appliance and surrounding area.
Damage to the Microwave: The intense heat generated during the arcing process can damage the microwave's interior, especially the walls and the microwave's magnetron (the device that produces the microwaves). Over time, repeated arcing can significantly reduce the efficiency and lifespan of the microwave.
If you accidentally put metal inside a microwave and notice arcing or sparks, you should take the following steps:
Turn off the Microwave: Immediately stop the microwave by pressing the "Stop" or "Cancel" button.
Do not open the Door: Opening the microwave door while arcing is occurring can expose you to the risk of electric shock or burns from the sparks. Wait for the arcing to stop before opening the door.
Remove the Metal Object: Using oven mitts or other heat-resistant gloves, carefully remove the metal object from the microwave once it is safe to do so.
If you don't remove the metal before turning off the microwave, the metal will still retain its potential to cause arcing if you turn the microwave back on. It's essential to remove any metal objects from the microwave before using it again.
To prevent accidents and damage, it's crucial to follow these safety guidelines when using a microwave:
Avoid putting any metal objects, including aluminum foil, metal containers, and utensils, inside the microwave.
Use microwave-safe containers and cookware made explicitly for microwave use.
If you're unsure whether an object is safe to use in the microwave, err on the side of caution and avoid placing it inside.
Remember, microwaves are designed to heat food efficiently, but they are not suitable for cooking with metal objects due to the risks involved.