Recipes

Food

Cooking

Travel

  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer
The Passport Kitchen

15 Surprising Household Items You Should NEVER Microwave

August 4, 2024 by Donna Dizon Leave a Comment

Share on

Microwaves have become indispensable in modern kitchens, offering quick and convenient heating solutions. However, not everything is microwave-safe. Here are 15 household items that you should never put in the microwave. Some may surprise you!

Eco-Friendly Products

Woman using paper towels in kitchen, closeup.
Image Credit: New Africa.

Items such as paper towels and containers made from recycled materials are unsafe to microwave. When microwaved, these products can release chemicals and ignite under certain conditions. It’s best to avoid putting them in the microwave altogether.

Styrofoam

A view of stacks of styrofoam takeout boxes, in a restaurant setting.
Image Credit:The Image Party/Shutterstock.

Due to their composition, Styrofoam containers and cups should never be microwaved. When exposed to microwave heat, Styrofoam can melt and release harmful chemicals into your food. It’s safer to transfer your food to a microwave-safe container before heating.

Gold-Trimmed Dinnerware

a centred bowl and three sizes of crockery plates in white with blue rims and edges and a gold trim.
Image Credit: Martin Hibberd/Shutterstock.

Avoid microwaving items with metallic accents, such as gold-trimmed mugs or plates, as the metal can cause sparks and potentially damage the microwave. Instead, transfer food to microwave-safe dishes for heating purposes.

Metal

Silverware on an old background..
Image Credit: Karynav.

Never microwave metal objects, including aluminum foil or utensils, as they can reflect microwaves, causing sparks and potential fire hazards. Always use microwave-safe containers and utensils when heating food.

Stainless Steel

Stacked stainless steel pans and fresh vegetables on prep table.
Image Credit: Cavan-Images/Shutterstock.

Similar to other metals, stainless steel containers or dishes should not be microwaved, as they can reflect microwaves and potentially damage the microwave oven. Opt for microwave-safe containers made of glass or ceramic instead.

Delicate To-Go Containers

A pile of plastic containers on a blue background ready for packaging food products. All containers are of different sizes and shapes. Industrial food packaging concept background.
Image Credit: Matveev Aleksandr/Shutterstock.

Many to-go containers, especially those made from thin plastics or with plastic lids, are not suitable for microwave use. When microwaved, these containers can warp or release harmful chemicals into your food. It’s best to transfer the food to a microwave-safe dish before heating.

Paper Bags

Young smiling blonde waitress in a yellow apron making a take away food delivery in recycled paper bags in a bar. Selective focus. Front view. Take Away concept.
Image Credit: Gabriel Aymat/Shutterstock.

Paper bags are not designed to withstand the heat generated by microwave ovens and can catch fire when microwaved. Before heating, you should transfer food to a microwave-safe container and avoid using paper bags in the microwave altogether.

A Mug with Water

Hand cheering a thermal cup full of a beer. Pool Party. Stanley Classic Stay Chill Vacuum Insulated Pint Glass Tumbler, Stainless Steel Beer Mug with Built-in Bottle Opener, Double Wall Rugged Metal.
Image Credit: Gus Gan/Shutterstock.

When heating water in a mug in the microwave, it’s essential to be cautious. The rapid movement and temperature change when picking up the mug can cause the superheated water to boil explosively, posing a danger similar to hot oil. Handle mugs with heated water carefully to avoid accidents.

Paper Plates

a variety of paper disposable plates of different colors.
Image Credit: vlaru/Shutterstock.

While convenient for serving food, paper plates should not be microwaved as they can ignite. To heat food safely, opt for microwave-safe plates or bowls instead.

Aluminum Foil

Men hands roll off the aluminum foil for household use on a wooden surface.
Image Credit: Below the Sky/Shutterstock.

Avoid using aluminum foil in microwave cooking. It reflects microwaves, causing potential sparking and fire hazards. Transfer food to microwave-safe containers and cover with microwave-safe lids or wraps when heating.

Single-Use Plastic

 
Inflatable polyethylene packaging bags with air chambers used to protect goods from damage during transportation. Packaging materials to protect fragile items.
Image Credit: hodim/Shutterstock.

Many single-use plastics, such as plastic wraps or containers without a microwave-safe label, can melt or leach harmful chemicals into food when microwaved. To ensure food safety, use microwave-safe containers and wraps explicitly designed for microwave use.

Nothing at All

man opens microwave looks inside, and shows class sign inside.
Image Credit: ERIK Miheyeu/Shutterstock.

Running a microwave oven empty can damage the magnetron, which generates the microwaves. Always ensure there’s something inside the microwave, even if it’s just a cup of water, when running it to prevent damage to the appliance.

Dutch Ovens

Orange dutch oven on wooden board with ingredients around it.
Image Credit: EGT-1/Shutterstock.

Cast iron Dutch ovens or pots with metal handles are not safe for use in the microwave, as the metal can spark and potentially damage both the food and the microwave. It’s best to use microwave-safe cookware when heating food in the microwave.

Butter Bins

oval dish with the oil cap on a bamboo napkin.
Imge Credit: Artsaba Family/Shutterstock.

Many butter bins have metallic linings or elements that can cause sparking in the microwave. To avoid potential hazards, it’s safer to transfer the butter to a microwave-safe dish before heating.

Squeeze Bottles

A hand squeezes a red condiment bottle over a bowl of vegetables, likely adding sauce or dressing.
Image Credit: siamionau pavel/Shutterstock.

Squeeze bottles made from plastic or metal parts should not be microwaved, as they can deform or release harmful chemicals under heat. It’s best to transfer the contents to a microwave-safe container before heating.

Experts Warn People to ALWAYS Refrigerate These 12 Non-Food Items

Shocked young woman looking in the empty fridge, she has no food at home, point of view shot from inside the fridge.
Image Credit: Stock-Asso/Shutterstock.

We all know our fridge and freezer are great for food and beverage preservation, but did you know you could use your fridge for other things beyond your kitchen pantry? You can store multiple things in your refrigerator to maintain potency, extend shelf life, or preserve them.

Find out more as we list some of the surprising things you can keep in your refrigerator besides food. 

Experts Warn People to ALWAYS Refrigerate These 12 Non-Food Items

20 Food to Stockpile (For the Best Chance of Survival)

Alarmed female wears medical mask against coronavirus while grocery shopping in supermarket or store.
Image Credit: Elizaveta Galitckaia/Shutterstock.

A well-stocked pantry can provide peace of mind and empower you to handle any situation. Whether it’s a natural disaster, economic instability, or simply unexpected guests, having a stash of versatile essential foods can make all the difference.

Here’s a list of 20 of the best foods to stockpile, ensuring you’re ready for whatever comes your way.

20 Food to Stockpile (For the Best Chance of Survival)
 

Filed Under: Cooking

Previous Post: « 29 Easy Packed Lunch Recipes Everyone Will Love
Next Post: 7 Picture-Perfect Picnic Foods We Recommend Having in Your Basket »

Reader Interactions

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Primary Sidebar

Recent Posts

  • 14 Cheap and Easy Game Day Appetizers That Won’t Cost You a Fortune (But Will Impress Your Guests)
  • 9 Retro Appetizers That Will Wow Your Game Day Guests
  • 11 Super Easy Appetizers That Are Perfect Your Game Day Party
  • 11 Gluten-Free Appetizers That Will Be a Huge Hit Your Super Bowl Party
  • 15 Game Day Finger Foods and Appetizers That Will Be Star of Your Super Bowl Party

Recent Comments

  • Leszek on 13 Reasons Eating Out Is Unhealthier Than You Ever Imagined
  • Jennifer T Tammy on 21 Cheap, Easy Appetizers That Anyone Can Make (And Are Really Good)
  • Eleanor on 20 Heirloom Recipes Passed Down Through Generations
  • Supriya Kutty on Mango Slushy Recipe
  • anusha sangaraju on 20 Ridiculously Delicious Indian Food Recipes You Must Try at Home

Footer

Categories

  • Food
  • Cooking
  • Great Food

Links

  • About Me
  • Privacy Policy

Email

amanda@thepassportkitchen.com

Copyright © 2026 The Passport Kitchen on the Foodie Pro Theme