The Part of Your Microwave You’re Probably Not Cleaning
Microwave with food
The microwave is in heavy rotation when it comes to reheating leftovers, popping popcorn and making mug cakes. It's also a surprising go-to for cooking corn on the cob (so easy!) and making granola in a flash.
And while you're likely wiping down the inside and outside of the machine on a regular basis, there's another part of your microwave that you're probably not cleaning. Did you know that over-the-range microwaves actually have two filters that need to be maintained?
Yeah. I was surprised too. Here's how to clean your microwave filters—and why it matters in the first place.
Related: How to Deep Clean Your Microwave in 10 Minutes Flat
What Are Microwave Filters?
Let me explain this new-for-many-of-us discovery. Over-the-range microwaves have at least one—sometimes two—filters. One is called the grease filter, and it needs regular cleaning. The other is a charcoal filter, and you'll want to change it (microwaves that vent up or back won't have this one, according to Samsung).
NOTE: If you have a countertop microwave, you can mark this task off your list. As Samsung explains, "Countertop microwaves don't have to worry about filters."
Related: 15 Fabulous Microwave Recipes That Aren't Mug Cakes
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What Do Microwave Filters Do?
As the name implies, the grease filter prevents grease (and other debris, like dust) from entering the microwave's vent system, protecting the exhaust fan. The exhaust fan is responsible for circulating clean air while you heat food and drinks in the microwave or cook on your stove.
While a well-functioning grease filter is excellent at its job, it needs frequent cleanings. Otherwise, debris can build up and reduce the effectiveness of an exhaust fan. Odors can start circulating instead of clean air, and things can get smoky when cooking on your range. Raise your hand if you like setting the fire alarm off when pan-frying chicken.
I thought so.
Related: 17 Surprising Home Cleaning Hacks
How Often Should You Clean a Microwave Filter?
Your best bet? Clean the grease filter at least every three months (but you may need cleanings as often as four to six weeks if you're a regular home chef, according to Maytag).
The charcoal filter also keeps your kitchen smelling clean by absorbing odors. As a result, you can enjoy the smell of leftover pasta and Rao's sauce that you're currently heating up instead of the salmon you reheated four days ago. The general rule of thumb on charcoal filters is to change them every six months. However, you may need to do so more often if you notice odors or debris.
Related: Surprisingly, This is the Germiest Thing in Your Kitchen
How Do You Clean a Microwave Filter?
The first step to cleaning and replacing your microwave filters is finding them. Your owners' manual should have a diagram, but finding that may require a search party.
The grease filter is underneath the microwave — remember, it protects the exhaust fan that's also down there. If your unit has a charcoal filter, you'll likely find it toward the top of the unit. One TikToker shared her discovery, which will help visual learners.
Related: How to Deep Clean Your Dishwasher
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Speaking of visual learners, some homeowners are providing how-to's on how to clean the grease filters. Truly, they are the real MVPs.
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