How to Dispose of an Old Microwave: the Right Way

You finally upgraded your kitchen setup with a shiny new microwave. But now you are stuck staring at the heavy, obsolete metal box that used to heat your leftovers.

Throwing out appliances isn’t as simple as tossing a wrapper in the bin. Because microwaves contain electronic components and hazardous materials, they require special handling. We will break down exactly how to dispose of an old microwave safely, from recycling and donating to repurposing it for storage.

Throwing Away an Old Microwave

You might be tempted to haul that heavy box to the curb or toss it in a dumpster behind your apartment. While that is the easiest route, it is rarely the legal one.

Can You Throw a Microwave in a Dumpster?

In most municipalities, you cannot throw a microwave in a standard dumpster or trash can. Microwaves are classified as e-waste (electronic waste). They contain capacitors, heavy metals, and circuit boards that can leach toxins into the soil if crushed in a landfill.

If you are caught dumping electronics illegally, you could face a hefty fine. Always check your local sanitation department website; some cities offer specific “bulky item” pickup days where they will collect appliances separately for a fee.

Microwave Recycling

Since the trash can is off-limits, recycling is your best bet. However, you cannot simply toss a microwave into your blue curbside recycling bin along with your cardboard and glass. It requires a specialized facility.

Here is how to find a place that will accept your appliance:

• Municipal drop-off centers: Most cities have a designated “convenience center” or public works facility that accepts electronics.
• E-waste events: Keep an eye on local community calendars for quarterly or annual e-waste collection drives.
• Earth911 search: Use the search tool at earth911.com to find specific recycling facilities near your zip code.
• Scrap yards: If you have a local metal scrap yard, they will often take microwaves for their steel and copper content.
• Retailer programs: Stores like Best Buy often accept appliances for a small fee or for free, depending on your state.

Reusing an Old Microwave

If you are feeling crafty and the microwave is physically intact, you can give it a second life. Just ensure you cut the electrical cord off first to prevent anyone from accidentally plugging it in.

Here are a few creative ways to repurpose the box:

• Retro bread box: The airtight seal of a microwave door is actually perfect for keeping bread and pastries fresh. Paint the exterior to match your kitchen.
• Garage storage: It makes a sturdy, mouse-proof box for storing shop towels, hazardous sprays, or small tools in a garage.
• Mini library: Remove the glass turntable and the internal motor, then use the cavity to store cookbooks or magazines.
• Proofing box: If the unit is clean but broken, you can still place dough inside it (with a cup of hot water) to create a draft-free environment for yeast to rise.

Is It Worth Fixing a Microwave?

Repairing an appliance depends entirely on the math. If a repair costs more than 50% of the price of a new unit, it is usually better to replace it.

If your microwave is less than two years old, check your warranty first. You might get a free repair or replacement.

Consider fixing it if you see these minor issues:

• The internal lightbulb burned out.
• The door hook or latch is stuck.
• The glass turntable plate broke.
• The touchpad is slightly unresponsive.

However, it is time to say goodbye if you notice these major failures:

• Loud buzzing or grinding noises.
• Sparks or smoke during operation.
• Cooking takes twice as long as usual.
• The door seal is warped or cracked.

How Often Should a Microwave Be Replaced?

The average lifespan of a microwave is about 10 years. With heavy daily use, you might only get five or six years out of it. Even if it turns on, an older unit becomes less efficient over time.

You should replace the unit immediately if:

• It leaks radiation: Damaged door seals can allow microwave energy to escape.
• It smells like burning: Electrical smells indicate failing internal wiring.
• The keypad fails: If you cannot stop the microwave or set the time accurately, it is a safety hazard.

Is an Old Microwave Dangerous?

Old units can be dangerous if physically damaged. If the door hinges are loose or the mesh screen in the window has holes, the microwave can leak radiation ⁽²⁾. Additionally, aging electrical components inside can create fire hazards.

Selling Old Microwave Parts

We generally advise against taking a microwave apart yourself. Inside the unit is a high-voltage capacitor that can hold a lethal electrical charge for days (or even weeks) after the microwave is unplugged.

However, if you are a trained professional or take it to a specialized shop, certain parts have value.

• Glass turntables.
• Roller rings.
• Magnetrons.
• High-voltage capacitors.
• Control boards.
• Door assemblies.

If you are just a standard homeowner looking to make a few bucks, sell the glass plate and the roller ring on eBay. Those are safe to remove. Leave the internal disassembly to the pros.

Take-Back Programs

Many retailers and manufacturers offer take-back programs to help close the recycling loop. This is often the most convenient method for disposal.

• Best Buy: You can bring your old microwave to the customer service counter at most locations. They charge a recycling fee for this item (usually around $30) unless you are a member of their tech support program, but they handle it responsibly.
• LG: LG offers free recycling for their branded electronics, though you often have to mail small items in. Check their site for local drop-off partners.
• Panasonic and Toshiba: These brands partner with the “MRM” (Electronic Manufacturers Recycling Management) company to provide drop-off points across the country.
• Samsung: Samsung supports the “Samsung Recycling Direct” program, which has collection sites in all 50 states.
• Goodwill / Salvation Army: If your microwave is clean and fully functional, these organizations will accept it as a donation. They will not accept broken units.

FAQs

Is a Microwave Worth Scrapping?

Yes, a microwave has scrap value, but it is minimal. You will typically make between $3 and $6 for a standard microwave at a scrap yard, mostly for the steel casing, electric motor, and copper wire.

Is There Copper Inside a Microwave?

There is copper inside a microwave, primarily found in the transformer, the magnetron, and the power cord. Scrappers prize the transformer because it contains a dense coil of copper wire.

Does Best Buy Recycle Microwaves for Free?

Best Buy typically charges a fee (often around $29.99) to recycle microwaves because they are considered hazardous e-waste. However, if you are a “Totaltech” member or if you purchase a new unit for delivery, they may haul away the old one for a reduced rate or for free.

What Are the Signs That a Microwave Is Going Bad?

Common signs of a dying microwave include loud humming or grinding noises, smoke or burning smells, food that cooks unevenly or not at all, and a door that fails to latch securely.

How Do I Know If My Microwave Is Leaking Radiation?

The most accurate way to detect a leak is to use a dedicated EMF radiation detector. While there are DIY myths about putting cell phones inside microwaves to test the seal, these are unreliable; an EMF Advanced Meter is the only scientific method.

Can I Put a Microwave in My Recycling Bin?

No, you cannot put a microwave in a standard curbside recycling bin. The complex mix of glass, plastic, and electrical components requires manual separation at a specialized e-waste facility.

Does Home Depot or Lowe’s Recycle Microwaves?

Generally, no. While Home Depot and Lowe’s often have bins for recycling rechargeable batteries, lightbulbs, and plastic bags, they rarely accept large appliances like microwaves unless you are purchasing a new one and paying for haul-away services.

Responsible Recycling

Disposing of your old microwave takes a little more effort than taking out the trash, but it is worth it for the environment. Whether you choose a municipal drop-off, a retailer take-back program, or donation, you ensure that hazardous materials stay out of landfills.

Always check with your local waste management authority first. And if your unit still works, pass it on to a student or a charity, it is the ultimate form of recycling.