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7 Things You Should Never Put In Your Microwave

Microwaves might be one of the greatest inventions of our time. People were VERY excited about them when they first emerged. They wanted to microwave EVERYTHING and take advantage of the tremendous convenience that came along with being able to cook your food in record time. The future had arrived! Unfortunately for them (but fortunately for us) the early pioneers of microwave technology quickly discovered that despite all its magical powers, the microwave was not compatible with everything. And thus we give you a list of items that you should definitely keep out of your space-aged cooking device for your own health, safety and sanity:

Objects that might catch fire

Most people know that you should never, under any circumstances, microwave metal. Pots, pans, travel mugs, and even things that just have a tiny bit of metal in them should never be nuked unless you want to start a fire in your kitchen. Watch out for those sneaky plates that may have a tiny amount of metal in their designs as well (we’re looking at you, grandma’s china!).

Objects that might leach harmful things into your food

Some plastic containers are fine to microwave, but the majority of them are not, so just don’t do it, ok? Many plastics contain chemicals, such as BPAs, that can seep into your food when the plastic is heated. Do yourself a favor and take an extra moment to transfer your food onto a microwave safe plate before you heat it up.

Whole eggs

Microwaving whole eggs puts you at risk of two things: an eggy explosion which will NOT be fun to clean up, OR steam burns on your fingers when you try to crack open the microwaved egg. Unless you’re a glutton for self-punishment, we highly suggest you avoid microwaving an un-cracked egg. Cracked eggs, however, can be quite delicious when microwaved, like in this recipe for Coffee Mug Quiche.

Frozen meat

Did you forget to thaw your meat for dinner? Instead of trying to thaw it awkwardly in the microwave, either thaw it under water in the sink or make something else. The heat in your microwave tends to be uneven, so microwaving frozen meat can lead to bits of it cooking while other bits are still frozen and you don’t want to mess around with your meat’s ‘doneness’ if you know what I mean. 

Hot peppers

So it turns out the chemical that makes hot peppers taste all fiery in your mouth – capsaicin – can also get a little too fiery in the microwave. Not only will the fumes make your eyes burn, but the pepper itself could catch on fire. Yikes!

Thick sauce

You might be tempted to microwave last night’s rich and delicious pasta sauce or hearty stew, but thicker liquids might give you problems in the microwave. As they heat up, the molecules don’t move around fast enough resulting in air bubbles and tiny explosions that make the inside of your microwave look like a mini murder scene.


In what world would anyone want to microwave grapes? I guess someone tried to once because grapes are now on the no-microwave list because, you guessed it… they explode when nuked.

Have you ever microwaved something you shouldn’t have? Share your experience in the comments and be sure to subscribe to our newsletter, Plated, for more tips and tricks!

12 thoughts on “7 Things You Should Never Put In Your Microwave”

  1. Microwaves take the nutrients out of your food. Also gives unneeded radiation. A toaster oven or the food ol stove top heays things up quicker than oeople realize 🙂 everyone should try for a few days and just see the difference 🙂

    1. Oli says:

      Thanks for sharing your thoughts Sherrie, all of our retail products can be made in either the microwave or the oven, check out this post for more information about microwaves

    2. Ray says:

      Please read and dispel those “old wives tales” about microwaves. The nutritional value of your food is no different than if you cooked it any other way (well, except boiling where some escapes to the water).

      1. Oli says:

        Hi Sherrie, we actually have! Check out this article: and let us know what you think! *Oli

    3. Craig Rheinheimer says:

      In addition to the nutritional corrections already posted, microwaving does not add “radiation” to your food. Microwaves are located between radio and infrared rays on the frequency spectrum. The radiation Sherrie’s comment implies is radioactive decay, which is completely different. My fellow Americans, please read a science book from time to time. I beg you.

  2. Some of my family members decided to make a sauce for their ice cream sundaes using marshmallows. The result was NOT a nice smooth marshmallow crème but rather a football size mass of hot sticky gooey marshmallow stuff all inside the oven and took forever to clean up.

    1. Craig Rheinheimer says:

      Add some butter to the marshmallows and stop frequently to stir. Then again, you can do the same thing on the stovetop in 5 minutes.

  3. Lynn M. says:

    Thought I would make homemade bread crumbs and needed 3 more pieces of bread, so I tried to dry these semi dried out slices of bread in the micro for approx. 3 minutes. Got busy making a salad before I realized it, my kitchen was filling with smoke from the fire in my microwave (1100 watts), the smell of “beyond burnt” bread and the mess was a nightmare! Needless to say, I had to scrap the new microwave, and went out to buy bread crumbs …. flame on!

  4. Michael E Thomas Sr says:

    It is possible to defrost meat without much problems if you change the power level to its lowest level of 10 percent. You need to turn it over every couple of minutes. It best to stop the process while you still feel some coldness in the meat.

  5. The # 1 Answer should be “FOOD” – There’s a HUGE difference in how the food tastes.. STOVE/OVEN WINS !

    I’ve evolved from being an Avid daily microwave user my whole life, to now Avoiding it whenever at all possible…
    Yes, Microwaves do decrease the nutrients of foods, but for 95% of foods, it’s not enough to really impact health.. just certain foods it destroys.. and the radical dr’s.. Mercola, etc.. are Over-Hyped..

    Frozen Entree’s, I now plan 50 minutes or so, transfer to small pyrex dish, cover with foil, make vent slits, bake
    Soups, Chili, etc. I take the miniscule few minutes to heat on the stove.. I reheat most leftovers in the oven..
    Vacuum Sealers are great to portion/freeze servings, then boil-in-bag / simmer on the stove….. Veggies I now steam on the stovetop, brown sugar I vacuum seal to stay soft.. Frozen meat, etc, I take out a day or 2 beforehand… CrockPot Lunch Crocks are great to take to work to heat your lunch….

    I’ve weaned myself over the last year to this point after I quit smoking, and got my sense of taste back.. There truly is an Amazing difference in the taste/texture of food prepared traditionally compared to microwaved…

    About the only things I use it for now are .. reheating coffee.. disinfecting sponges.. and true emergencies..
    Last minute meat defrosting.. which my Panasonic Inverter actually does perfectly.. Softening butter, if I’ve forgotten to take it out prior.. and VERY rarely, a frozen entrée, canned soups/chili, leftovers, but that’s only If I’ve overslept and in a rush … Now, if house hunting, an above stove micro would instantly cross that one off

    So, I’m finally at that tipping point, of either getting rid of it for good, or at least getting it out of my kitchen, and relocating it somewhere else, like the garage, to use for my now RARE emergency purposes…

    There is NO substitute for TASTY FOOD.. Microwaving is no longer worth that sacrifice for the convenience

    1. Oli says:

      Hi Dennis, Thank you for your comments and for sharing your story! You’ll be happy to know that all of our products can be prepared in the oven. Part of our mission here at Luvo is to get people excited about eating real food again which includes getting them back into the kitchen! Our products are a great solution for what you are short on time but still want to fill your body quality ingredients (that taste amazing). I hope you get a chance to try our products and look forward to hearing what you think! *Oli

  6. Niel says:

    Thanks for providing the great tips! In addition to metal pots and pans that can spark a fire, Paper bags are a big no no as they can also catch fire. I always try to find a plate when reheating my food. At work I noticed we also get our microwave regularly tested and tagged to ensure there is nothing wrong with it and prevent fire.

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