Can You Put Stainless Steel In The Microwave?

Stainless steel is a popular material for cookware because it is durable and easy to clean but can you put stainless steel in the microwave? This question comes up often, and the answer is not always straightforward. In this blog post, we’ll explore whether or not you can microwave stainless steel and provide some tips for how to do it safely. Stay tuned!

Can You Put Stainless Steel In The Microwave?

Can You Put Stainless Steel in The Microwave?

No. Never put stainless steel in a microwave. The only exception is if you have a microwave-safe container with a handle made of wood, glass, or plastic. These materials may survive microwaving but don’t count on it.

Some handles, especially those that are metallic, will be ruined by putting them in the microwave for even just one minute because they can cause sparks and start fires.

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How Can You Tell If Something is Stainless Steel?

It’s easy to tell if an object is made of stainless steel because this metal, unlike other metals, will not rust or corrode unless extreme conditions are present. If your stainless steel starts getting discolored, it may be time to replace the item. The only exception is with 18/8 and 18/10 grades of stainless steel which will lose their bright silver color over time as they form a protective oxide layer.

What Happens If You Put Stainless Steel in the Microwave?


Normally, as mentioned, because the stainless steel will not absorb the heat from the microwave, it will reflect and release in sparks.


In some cases, If you place stainless steel utensils in microwave, it will cause an explosive reaction. This is because microwaves can cause certain metals to heat up until they begin to rapidly oxidize. When the metal becomes hot enough the air pockets inside of it disappear and it becomes extremely dense and very heavy all at once. 

The sudden increase in weight causes the metal to explode and produce huge amounts of force which can be very dangerous if it were to happen near your face or other vital areas such as your hands.

Because this happens when the metal heats up quickly, one way that this can occur is by using something like a microwave. It is not recommended that any type of cooking container made out of anything other than plastic should ever be microwaved since the metal may absorb the microwaves and cause them to heat up faster than it was intended to. 

If you put a stainless steel spoon in the microwave for an extended period, there is a risk that it will become extremely hot and could explode.

Some common types of metals that cause this reaction are steel, iron, copper, brass, bronze, and others. One way to think about whether or not your container should be microwaved is if the container holds water like a cup does then you should never microwave it due to the risk of causing it to heat up too quickly which changes its density rapidly. 

On the other hand, something like a spoon with no water would only have a few minutes in the microwave before it starts to heat up and you risk causing an explosion.

As far as why it is not recommended to use things like metal spoons when cooking in microwaves, there are a few reasons they do not work well and should be avoided. The first reason is that the metal heats up very quickly and can become extremely hot which can cause damage to your food if you leave it in for too long. 

Another reason is that the spoon might change shape due to the uneven heating of microwave energy and finally, it may simply explode once microwaved since many types of metals expand rapidly when heated. 

If you want to cook with metal or need a utensil while in the microwave oven, using something like plastic is recommended over using something like stainless steel.

Does Stainless Steel Explode in The Microwave?

It depends on the types of stainless steel, some will explode, some do not. Most kitchen equipment such as dishes and silverware is made of stainless steel. Although it can become quite hot when placed in the oven, it will not explode like a water balloon or even shatter like ceramic or glass cookware would if heated to very high temperatures. 

Microwave ovens use microwave energy to heat food, any metal objects are unaffected by this energy because metal reflects microwaves. Since you cannot see microwaves with your eyes, sometimes small metal objects inside the microwave may spark due to electrical charges that accumulate on them while they absorb microwave energy. 

Sometimes these sparks seem fairly powerful, but the metal objects themselves are never affected.

Is a 304 Stainless Steel Microwave Safe?

No. It is not safe in a household microwave. The surface of the stainless steel will heat much more quickly than food, which could cause steam pressure to build within the pan and cause it to explode.

What Happens If You Put Metal in the Microwave?

Well, first off, you shouldn’t because microwaves can be dangerous. But if you do so anyway, here’s what happens: the metal will heat up to very high temperatures very quickly. 

The microwave uses electromagnetic waves to cause alternating electric fields in certain substances so that they are shaken violently. This shaking causes the substance to heat up. Since there are alternating electric fields within metals too, they consequently heat up as well, since they’re being moved around by these fields at a fast rate of speed. 

On top of all this heating though, microwaves have enough energy to vaporize the metal/water molecules which often results in sparks and flashes of light coming from the oven element itself! Not only is it dangerous for you to put anything metal in the microwave, but it’s very bad for your microwave too. Microwaves can also be dangerous if not handled properly, so please use them carefully!

What Metals Can You Put in Microwaves?

Thin Aluminum, steel, or tin foil is safe to microwave. As for steel and tin, be careful when putting them in the oven because they may spark and cause a fire. Also, aluminum foil begins to melt at 500°F so if your food is that hot, you should let it sit for a while before taking it out of the oven.

What is Safe for Microwaves?

Microwaves are used to heat food. But what can you put in microwaves?

Some common things people put in microwaves include:

  • Sandwiches (meat and cheese)
  • Pieces of frozen meat
  • Chips/snacks that come in bags
  • Leftovers from dinner, especially pieces of meat or vegetables that may have hardened since cooking them on the stovetop.
  • Tinfoil – tinfoil reflects microwaves so it’s best not to put any tinfoil into a microwave oven. The only exception is if you’re making something that requires cooking inside of tin foil, like fish fillets placed inside foil packets before they’re microwaved. When doing things like this, make sure to poke holes in the center of each packet so that the microwaves can get in and cook the food inside.

People should not microwave anything metal! Things made out of metal can spark and cause fires. Additionally, metal reflects microwaves, so it’s best to leave all metal items out of microwaves. One reason is that if you reheat something like spaghetti or soup with pieces of aluminum foil inside the dish, the microwave will reflect off these pieces of foil and cause sparks. This can be dangerous inside a microwave oven, because of the heat that comes from sparking pieces of metal.

The only things people should put in microwaves are food! Here are some things people should not put in microwaves:

  • Plastic utensils or containers
  • Any kind of liquid besides water
  • Metal spoons/forks/knives/plates/etc.
  • Anything that could melt or catch fire, like candles or paper towels
  • Glass jars filled with any kind of liquid (such as pickles) should never be microwaved either, even if they’re emptied first. Heat often makes glass expand enough to break itself apart! It’s best to leave items that are made of glass out of microwaves.
  • Sweets like cupcakes or candy
  • Permanent markers

Items made of metal should never be put in a microwave oven because they will spark, making it potentially dangerous to use a microwave for cooking. Other things you should never put in a microwave oven include liquids, raw eggs, or any other container that could melt from the heat of the microwaves.

Precautions When Using Microwaves

The following precautions should be taken when using microwaves:

1. Remove all foreign substances from the oven before usage. Foreign substances may ignite due to microwave radiation, resulting in a fire or breakdown of the oven.

2. Use appropriate power levels for each function and do not overcook food. Discard any food heated at too high a temperature. Overcooking can cause hot spots in food, which could result in burns upon consumption, or damage to the oven itself. For example, overheating milk could lead to a fire.

3. Do not use metallic containers or utensils when cooking, as they may discolor or warp due to high temperatures and lead to breaks or burns.

4. If an abnormality occurs during use (i.e., leakage of microwave radiation) or if smoke is detected from the oven, immediately switch off the car and pull out the power plug. Never touch the oven after removing the power cord as this would result in burns due to high voltage levels present inside which could cause electrocution.

5. Do not let children use microwaves without adult supervision. Children have a lower threshold for pain and can sustain a greater injury through prolonged exposure to microwaves than adults because their eyes are still developing and their bodies have a smaller volume-to-surface area ratio compared with adults.

6. Do not use the oven near medical equipment such as pacemakers, since it may interfere with their operation. People with pacemakers should consult a physician before using microwaves and follow instructions given by the manufacturer of the pacemaker to avoid interference from microwave energy. Also, keep all flammable materials away from microwaves.

7. Check that there is no leakage before you switch on the oven at 220 [volts]. Leakage current may cause problems in your home wiring which can lead to fire or electric shock hazards from this appliance.

8. If water is spilled over electrical parts inside the oven, never touch these parts when power is switched on. Warranty will be void if any repair work is carried out by non-authorized personnel. Consult a qualified service technician if repair work is required.

9. Place your microwave away from areas where humidity is high (e.g., washrooms) to prevent moisture build-up inside the oven which can lead to damage to it. Also, avoid placing heavy objects on top of the oven as they may cause breaks or fire when touched by microwaves. If the unventilated, accumulation of too much steam during cooking can lead to problems like ‘

Frequently Asked Question

  1. Anything Else That Shouldn’t Be Placed in a Microwave?

In addition to not putting metal or sharp objects into a microwave, people should never try to heat liquids, oils, milk products, or foods with milk products inside the appliance. Heating these ingredients can cause them to bubble and explode from pressure buildup inside of the microwaves, making a mess that’s difficult to clean up and potentially leading to injury. 

Things like paper towels and napkins should also not be placed in a microwave oven because they’re designed for one-time use only, if you place them in the oven without being careful they’ll burn. Persistent materials like this can catch on fire or leave behind soot residue after coming into contact with high levels of heat, making them dangerous to use in a microwave.

  1. Can You Microwave Parchment Paper?

Some people wonder if they can cook food on parchment paper that has little circles of wax still clinging onto it, while others are interested in whether or not microwaving sheets of parchment paper is effective for softening them up. 

Unfortunately, both types of questions have largely unreliable answers because there have been so many conflicting opinions over the years about what’s safe and what isn’t when using microwaves to heat foods. 

This makes it difficult to say whether or not microwaving parchment paper is truly dangerous without knowing exactly how your microwave oven works. Some scientists have claimed that microwaves heat food from the outside in, while others have said that the waves move directly through objects without turning around.

One of the most important things to note about microwaves is that they’re designed to heat liquids so much faster than solids. Although only some metals are known for heating up explosively in microwaves, people should never try putting liquid substances inside of the oven without checking to see if their specific model of microwave is capable of making them boil. 

  1. Can You Microwave Aluminum?

Aluminum foil is one of the most common types of metal found around homes and offices, but it’s also one of the safest options when it comes to using a microwave. That being said, people should still only use aluminum foil in microwaves when they have a specific task in mind for it, don’t try to heat leftovers on the shiny side of the sheet or you might find that your meal comes out dryer than expected.

More specifically, manufacturers recommend placing aluminum foil onto the bottom rack inside of a microwave oven so food can be heated up and cooked evenly on both sides without having to flip objects over during cooking time. 

People who want to make certain their cookware is safe for use in a microwave may also want to line metal baking pans with layers of foil before putting them inside of the oven; this prevents dangerous sparks from flying out while making sure all parts of whatever’s being cooked come out equally hot.

  1. Can You Put Insulated Cables in The Microwave?

Some people wonder if certain types of insulated cables can be microwaved or not, and the truth is that there’s a very simple answer to this question: never put live electrical wiring inside of a microwave oven. 

Even microwaves with special settings for cooking popcorn should be avoided when it comes to electrical equipment because these devices might release toxic fumes when they’re accidentally left on for too long while plugged in. 

Instead of using an electric power strip with built-in timers, people who want to heat small objects like teabags or gloves should simply plug them into an ordinary extension cord, then they won’t have to worry about the cords catching fire or melting in the middle of cooking.

  1. Can You Microwave A Ziploc Bag?

Ziploc bags are popular to use when microwaving or boiling foods because they take up very little space in the oven, but people should never try using this material for lining a microwave oven’s drip tray. 

Parchment paper is much more effective at preventing spills from happening, and manufacturers have recommended its use ever since microwaves were first introduced into homes during the 1970s. 

People who want to cook small items with any type of plastic wrap should just tear off enough sheets to cover the top of whatever it is that they’re about to cook, this way, there won’t be any dangerous chemical fumes released while the food gets heated up inside of the machine.

  1. Is It Safe To Transfer Food From One Container To Another In The Microwave?

When people are in a rush to heat leftovers or make quick weeknight dishes, they might be tempted to transfer the food from its original dish into something else before microwaving it. 

While this method is fast and effective for reheating most types of foods, some very important safety precautions need to be followed each time people use this technique, glass bowls must never be used with high-power settings because they can shatter under extreme internal pressure, and metal pans without flat bottoms could overheat when exposed to microwaves for too long.

  1. Can You Put A Metal Utensil In The Microwave?

Certain household objects just shouldn’t be put inside of a microwave oven, including metal utensils that are designed to be used on hot stoves. These tools are typically coated with certain types of nonstick or Teflon surfaces that can release dangerous chemicals when heated up for too long, so people should only clean them by hand after they’ve cooled off. 

  1. Can You Put Silverware In The Microwave?

To avoid injuries from being caused by sharp edges or other metallic objects, it’s best to never put silverware inside of a microwave oven unless the pieces are specifically meant to withstand high temperatures. For instance, people who own forks made out of three prongs might want to use this object instead of a regular spoon to stir their morning coffee – otherwise, all bets are off!

  1. Is It Harmful To Put A Plastic Spoon In The Microwave?

Although plastic utensils are typically considered safe to use with microwaves, people should take certain precautions when heating liquids or foods that tend to release stains. 

For instance, spoons carved out of melamine resin (which is typically used to make dinnerware) might melt if they’re exposed to high temperatures for too long – so these objects should never be used near the edges or handles of bowls. 

On the other hand, plastic cutlery made out of polypropylene shouldn’t pose any problems during a quick defrosting session since it’s able to withstand the heat from microwaves without changing shape.

  1. Is it safe to put stainless steel utensils in microwave?

Metal is not supposed to be placed in microwaves, because the metal will create sparks. These sparks can cause damage to your microwave oven, or it might even burst into flames. Because of the possibility of fire, do not place any metal in a microwave oven.

  1. Should I use ceramic containers when heating food in my microwave oven?

Ceramic containers, such as those made from stoneware or porcelain, are microwave-safe. These materials will not melt or crack in a microwave oven. Some foods may pick up a slight odor from the material of the container if it contains a glaze but this should fade after heating and washing.


Can you put stainless steel in the microwave? The answer is no. Putting metal in the microwave can cause sparks and damage your appliance, if not start a fire! So while it may seem like an easy way to clean your pots or pans quickly, don’t do it. 

The bottom line is that you should never put stainless steel utensils in microwave. We recommend using a ceramic or glass plate to reheat food, this way you won’t end up with an uneven heating pattern on your dishware and will avoid any potential damage to your appliance. If you’re looking for more information about how microwaves work, check out our blog post  or you can also contact us if you have any questions!

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