Accidentally Put Fork In Microwave (Do This Now)

By - Hs Saini

Updated -

Accidents happen, some can be a result of a silly mistake. There are many perceptions about using metal in the microwave.

Because microwave ovens are mysterious, it is possible to imagine that they cause radioactive death when necessary safeguards are not taken.

Sometimes you might get lucky, but it is advisable never to put metal in your microwave as it may be devastating. 

Should you accidentally put a fork in the microwave, Do not panic because A spoon or fork is not affected by the microwave field on its own. Nothing will happen for the first few minutes until it touches the oven’s wall or any other metal. It is advisable to keep a load in the oven to absorb the energy. 

What Happens If I Microwave A Fork?

Accidentally Put Fork In Microwave

Microwaves cause electrical currents to flow in metal things. If you put metal in the microwave, This can result in two issues.

The metal can become incredibly hot, which you don’t notice until you try to remove it with your bare hands. 

And they can generate electrical arcs from sharp edges of metal objects, which you detect immediately as a loud humming noise and a vivid blue light. Possibly this may ignite a fire. 

What causes the little lightning display are Electrons collected around the margins of objects with pointed edges.

When enough electrons accumulate, they form an arc between the metal and the electromagnetic transmitter. 

Most metals at a microscopic level are tiny grid arrangements of atoms with many electrons constantly flowing between them.

As the microwave radiation bounces around within your microwave oven, it attracts all of these electrons, tugging them back and forth, generating heat inside the metal. 

A huge sheet of a very thin layer of metal can heat up extremely quickly, reaching so hot that it may begin to burn the microwave. 

I Accidentally Put Fork In The Microwave, And Nothing Happened?

BLACK+DECKER EM720CB7 Digital Microwave Oven with Turntable Push-Button Door, Child Safety Lock, 700W, Stainless Steel, 0.7 Cu.ft

You are quite fortunate if you microwaved a sharp metal object without starting a fire. However, metal in the microwave isn’t always dangerous in some cases. 

Thick metal takes a long time to heat up. And it is less prone to cause sparks and fire if it has no sharp points or jagged edges.

This action explains why some microwaves have a metal rack that you can place inside them, and nothing happens. 

In some cases, everything will be alright if the metal in the microwave is thick, smooth, not near something flame retardant, and ideally buried under food.

For safety reasons, below are some other things you should never microwave;

#1. An Aluminum Foil 

Amazon Basics Standard Aluminum Foil, 12" X 200'

An aluminum foil has similar chemical properties to a fork. Putting it in your microwave oven can also lead to a potential fire Hazard. 

#2. Bags Made Of Paper

BagDream Kraft Paper Bags 100Pcs 5.25x3.75x8 Inches Small Paper Gift Bags with Handles Bulk, Paper Shopping Bags, Kraft Bags, Party Bags, Brown Bags

Not all paper bags are made equal. The bag of popcorn is not the same as the brown paper bag used for lunch.

Susceptors, a substance designed to consume microwave radio waves, are installed in popcorn bags.

Paper bags, such as those used in grocery shops lack susceptors and can emit poisons and odors when heated. 

The bag could catch fire because microwaves emit heat so quickly. 

#3. Bags And Containers Made Of Plastics

When exposed to the heat, plastic emits Bisphenol A, or BPA, an organic molecule used to make plastic transparent and phthalates, allowing it to be flexible.

BPA and phthalates are considered ‘endocrine disruptors. These are compounds that mimic human hormones, and they are not beneficial.

Unless you want to alter the contents of your food, it is advisable to microwave your food with a glass plate or microwave-safe containers.

#4. Mugs For Travel

YETI Rambler 20 oz Travel Mug, Stainless Steel, Vacuum Insulated with Stronghold Lid, Navy

A travel mug, typically made of plastic or steel, should not end up in your microwave. Steel cups, due to the steel used in the construction of your microwave.

It will prevent your beverage from being heated and may produce friction from the energy emitted.

It is better to heat your coffee in a microwave-safe mug before transferring it to your go-to, to-go mug.

I would recommend this one from Amazon if you don’t have one.

#5. Eggs Hard-Boiled

FusionBrands EggXactPeel Egg Peeler - The Easy Egg Peeler Tool that Effortlessly Cracks, Peels, and Removes Egg Shells From Both Soft and Hard Boiled Eggs - BPA Free Kid Friendly Plastic Kitchen Tool

Because microwaves cook at such high temperatures, attempting to cook an egg would result in excess steam within the egg’s shell.

The steam in the egg builds, and before you notice, you’ll have an egg blast to clean up.

#6. Chili Peppers

KEJORA Fresh Red Thai Chili Peppers -1 Lb (16 oz)

Pitting hot pepper in your microwave is a procedure similar to pepper spray.

Not only can the pepper spark and start a fire, but the toxins produced by the pepper can lead to suffocation and even burn your eyes when you open the microwave. 

#7. Open Containers 

SnapLock by Progressive Snack To-Go Container - Gray, SNL-1000GY Easy-To-Open, Leak-Proof Silicone Seal, Snap-Off Lid, Stackable, BPA FREE

Unless you plan on spending the entire day cleaning up mistakes, it’s best to cover your food before putting it in the microwave.

The heat emitted while warming your uncovered dish may make it boil, hop around, or even explode.

To ensure you don’t have a marinara breakdown. Use a microwave cover or microwave-safe material to keep dishes covered.

#8. Turning On An Empty Microwave

BLACK+DECKER EM720CB7 Digital Microwave Oven with Turntable Push-Button Door, Child Safety Lock, 700W, Stainless Steel, 0.7 Cu.ft

Sometimes we might want to experiment with crazy stuff. Sometimes it’s fun, but not in the case of your microwave. Whatever you do, please do not turn your microwave on when there is nothing placed in it.

The microwaves that are discharged have to go somewhere. If The waves go off each other without a destination, they are absorbed by the microwave. This action can, in turn, cause it to explode.

What To Do If You Put A Fork In The Microwave? 

Damage is only a probability, not a proven fact. When you accidentally microwave sharp metal objects, do not overreact. As long as the microwave is working fine, your food will be ok. 

If the fork is buried in the food, there will be no spark. But if the fork is left outside the food, make sure it does not touch another metal or it does not touch the walls of the oven as it may trigger a fire. 

It is advisable to have a metal rack in your microwave just in case you forget any metal in it. Earlier in the 1990s, you could set your microwave on fire if you left any sharp metal objects in it.

But microwaves nowadays seem to have no issues with that. However, it is advisable not to make leaving items in your microwave a habit.

What Happens If You Accidentally Microwave Silverware?

Microwaves move electric charges through metals, and if the metal is too thin, it will heat up like an electric bulb filament; this can cause a potential fire Hazard.

If the metal has sharp points, charges may build up in those locations, causing a spark to fly into space.

In general, placing metal in the microwave is dangerous not because it could cause bodily harm in extreme situations but because it could potentially damage your microwave.

There is a component that resides inside the metal box of your microwave called a magnetron, and despite its amazing name, knowing how this thing works is not easy.

Let’s explain how it works;

#1. Magnetron Its Effect In The Microwave

The magnetron begins by discharging electrons from a negatively charged rod known as a cathode.

These electrons enter a chamber with electric and magnetic fields, which deflect and compel the electrons to move in circles.

 The electrons bump up against the positively charged walls of the chamber, which has unique cavities constructed into it as they go.

The electrons rush over the cavities, imparting electric energy and pushing the cavities to vibrate at a specific frequency, producing microwave electromagnetic waves.

 These microwaves are delivered into your microwave oven’s main box, where they move back and forth through walls. 

If something is placed inside the microwave oven, it can absorb microwave radiation. A metal with a sharp edge, such as a fork, collects these electrons.

And hence they are moving back and forth; some negatively charged electrons can stay at the sharp edges on one end, and others can stay at the other.

 And because these electrons don’t stay in one place, the cause of their back and forth movement, they can come in contact with each other.

This action doesn’t create a good outcome as the law of magnetism states; like poles repel, unlike poles attract. 

When these same charged electrons meet, they are much at a point they repel each other, which can cause a spark.

If the spark they create comes in contact with something flammable, it can ignite a fire. 

Is It Safe to Eat Food That Was Microwaved with A Metal Fork?

A metal spoon sitting in food will not cause toxicity unless it is also encased in plastic wrapping materials because if a fork never reaches a high temperature, it will never release any harmful chemicals.

Some people think that eating food that has been microwaved with metal can cause cancer. The truth is this.

Metal in the microwave does not short out the microwave, and the metal will not harm the meal in any manner; it is unlikely to harm the food or utensil. It will only cause problems if it’s a thin layer of metal. 

It is advisable to avoid this and not make it a habit because sometimes you might get unlucky as this can cause the microwave to explode when it is left in the oven for too long.

Electrical sparks can burn small holes in metal walls, or a fire could develop in your microwave in extreme circumstances. 


Leaving metal objects in the microwave is not a good idea as it can sometimes be disastrous to the microwave itself or even lead to a potential fire Hazard.

However, the damage is not a definite outcome. Other items you should avoid putting in your microwave have also been discussed above. 

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