5 things you should never put in the microwave

May 15, 2018, 6:30 PM | Updated: 9:42 pm

SALT LAKE CITY, Utah — Microwaves do a lot of things well: reheat leftovers, pop popcorn and cook those Hot Pockets just right.  But, they can also catch fire.  You’ve likely heard metal in a microwave is a big no-no.  Here are five other things that’ll make a microwave dangerous.


Hot peppers have capsaicin, the chemical that makes hot peppers hot.  It is very volatile and catches fire in a microwave.  Not only that, when nuked, the peppers release that capsaicin.  Your eyes will sting.  Your throat will burn.  Your day will be shot.


Many of us use old plastic butter containers to store leftovers.  If you do, just don’t warm them up in the microwave.  Toxic chemicals help shape these containers and make them stable.  They can’t take microwave heat.  They might melt, but they also release those chemicals into your food.


If you use Tupperware-like containers, remember they’re made of plastic.  So double check that it’s specifically labeled “microwave safe” before throwing those leftovers in the microwave.


Same goes for styrofoam.  It’s a type of plastic and when thrown in the microwave for even a few seconds, it can leak toxic chemicals into your food.  There is microwave safe styrofoam, and only if it has that label should you cook your food in it.


Need to warm up your sack lunch?  Well, don’t microwave it in the brown paper bag.  The bags can’t take the heat and can catch fire.  If that’s not enough to dissuade you – how about this?  Those bags release toxic fumes and have germs that might end up in your lunch.


And here’s something else you should never microwave – nothing!   If there’s no food to absorb the actual microwaves, you’ll burn out the magnetron.  That’s the thing that makes a microwave work.

KSL 5 TV Live

Top Stories

Consumer File


Sunday Edition: Countdown To Election Day

This week on Sunday Edition, we count down to election day looking at Utah’s biggest race and the latest polling data.
1 month ago
Roe v Wade Utah...

Sunday Edition: Republican Primary Election Debates; Roe v. Wade impact in Utah; Drought Conditions outlook

Doug Wright sits down with Senator Dan McCay to discuss the Supreme Court leaked draft opinion on Roe v. Wade and about the so-called "trigger law" that would go into effect if Roe v. Wade is overturned.
4 months ago
Matt Gephardt and Sloan Schrage, KSL TV

GPS gadgets and other devices that can help parents keep tabs on their children

Moms and dads have all sorts of gadget options that can help their peace of mind while keeping tabs on their kids.
1 year ago
Dan Spindle, KSL TV

How to stream Utah college football games

Here's how you can still watch your favorite teams on the gridiron without the expensive satellite or cable package.
1 year ago
A US government agency issued an "urgent warning" for users of Peloton's Tread+ following multiple ...
Jordan Valinsky, CNN Business

Peloton Tread+ Owners Told To Stop Using Treadmill In ‘Urgent Warning’

A US government agency issued an "urgent warning" for users of Peloton's Tread+ following multiple dangerous incidents with the machine, including a child's death.
2 years ago
Matt Gephardt, KSL TV

Gephardt: Gas Company Resumes Disconnecting Delinquents, Vows To Help Customers

Dominion Energy decided in March to cease disconnecting those who didn't pay their gas bills, but that program only runs through mid-July.
2 years ago

Sponsored Articles

notebook with password notes highlighted...
PC Laptops

How to Create Strong Passwords You Can Actually Remember

Learn how you can create strong passwords that are actually easy to remember! In a short time you can create new ones in seconds.
house with for rent sign posted...
Chase Harrington, president and COO of Entrata

Top 5 reasons you may want to consider apartment life over owning a home

There are many benefits of renting that can be overshadowed by the allure of buying a home. Here are five reasons why renting might be right for you.
Festive kitchen in Christmas decorations. Christmas dining room....
Lighting Design

6 Holiday Decor Trends to Try in 2022

We've rounded out the top 6 holiday decor trends for 2022 so you can be ahead of the game before you start shopping. 
Happy diverse college or university students are having fun on their graduation day...
BYU MBA at the Marriott School of Business

How to choose what MBA program is right for you: Take this quiz before you apply!

Wondering what MBA program is right for you? Take this quiz before you apply to see if it will help you meet your goals.
Diverse Group of Energetic Professionals Team Meeting in Modern Office: Brainstorming IT Programmer...
Les Olson

Don’t let a ransomware attack get you down | Protect your workplace today with cyber insurance

Business owners and operators should be on guard to protect their workplace. Cyber insurance can protect you from online attacks.
Hand turning a thermostat knob to increase savings by decreasing energy consumption. Composite imag...
Lighting Design

5 Lighting Tips to Save Energy and Money in Your Home

Advances in lighting technology make it easier to use smart features to cut costs. Read for tips to save energy by using different lighting strategies in your home.
5 things you should never put in the microwave