Roughly 9 million microwaves hit the curb every year in the United States, and most of them end up in landfills where the magnetron and circuit board leak heavy metals into the soil. Deciding what to do with old microwave appliances isn’t just about decluttering your kitchen — it’s a small but real environmental choice. Whether your unit died, got upgraded, or just looks dated, you have far more options than the dumpster, and several of them put money or goodwill back in your pocket.
- Confirm Whether It Still Works
- Donate to a Local Charity or Thrift Store
- Sell It on Facebook Marketplace or Craigslist
- Recycle Through an Electronics Program
- Trade It In at the Retailer
- Repurpose Working Units Around the House
- Salvage Parts If You Are Handy
- Last Resort: Curbside Bulk Pickup
- Prep the Unit Before Any Pickup or Drop-off
- Handle Built-In and Over-the-Range Models Differently
- Make the Right Choice for Your Situation
Confirm Whether It Still Works
Before you decide on disposal, plug the unit in and microwave a cup of water for one minute. If the water heats and the turntable spins, the appliance has life left. A working microwave is donatable, sellable, and often welcome at a college student’s first apartment. A dead one is recyclable but not reusable, which narrows your options to scrap and e-waste channels.
Donate to a Local Charity or Thrift Store
Goodwill, Salvation Army, Habitat for Humanity ReStore, and most community shelters accept working microwaves in clean, stain-free condition. Wipe the cavity with a baking soda paste, deodorize with a lemon slice, and bring the original turntable plate. Habitat ReStores typically resell countertop units for $25 to $45 and channel the proceeds into local housing builds.
If the cord is frayed or the door latch is sticky, skip donation — charities discard about 30 percent of donated appliances, which costs them money to haul away.
Sell It on Facebook Marketplace or Craigslist
A clean countertop microwave under 5 years old typically fetches $20 to $50 on local resale apps. Take four clear photos: front, inside, control panel, and serial label. Mention wattage (700W versus 1,100W matters to buyers), the brand, and any quirks. Price it 30 to 40 percent below the new-replacement cost and you will move it within a week in most metro areas.
Recycle Through an Electronics Program
Microwaves contain copper, steel, and gold-plated contacts that scrap yards pay for. Best Buy runs a paid Haul-Away program for $30 when you buy a replacement appliance, and many municipal household hazardous waste days take microwaves for free. Search “[your county] e-waste drop-off” to find the nearest center. Earth911.com maintains a national directory by ZIP code that pulls in real-time hours.
Trade It In at the Retailer
Several big box stores offer credit toward a new appliance when you bring your old one in. Home Depot has run $25 to $50 trade-in promotions on countertop microwaves during Black Friday and Memorial Day weekends. The trade-in route works even when the unit is dead, because the retailer recycles the carcass on the back end.
Repurpose Working Units Around the House
An old microwave doesn’t have to leave the property to be useful. A few practical second lives:
- Garage warming station for coffee, hand warmers, or melting beeswax for woodworking
- Workshop tool for softening epoxy, drying small lumber samples, or warming silicone caulk for easier application
- Outdoor kitchen unit near a covered patio or pool house
- Backup unit for holidays when the main microwave is tied up reheating side dishes
Salvage Parts If You Are Handy
Hobbyists strip dead microwaves for a few specific components. The transformer powers homemade spot welders for 18650 battery packs. The turntable motor runs displays for craft fairs. The magnetron itself is dangerous and should never be opened — even an unplugged microwave stores a lethal charge in its high-voltage capacitor for weeks. If you don’t know how to safely discharge a 2,100V capacitor with an insulated screwdriver, leave the case sealed and recycle the whole unit.
Last Resort: Curbside Bulk Pickup
If recycling centers are too far and donation isn’t an option, schedule a bulk pickup through your trash hauler. Most municipalities run free pickup days twice a year, and private haulers charge $25 to $60. Tape the door shut, write “MICROWAVE” on the side, and place it at the curb the morning of pickup. It is the least desirable path environmentally, but it beats abandoning the unit in an alley where someone else has to deal with it.
Prep the Unit Before Any Pickup or Drop-off
Whichever path you choose, a 15-minute prep makes everything smoother. Unplug the unit, wrap the cord neatly with a twist-tie, and remove the glass turntable so it doesn’t shatter in transit. Wipe the cavity with a damp cloth and a tablespoon of baking soda to remove food residue — a smelly microwave gets refused at most charities and resale platforms. Tape the door closed with masking tape (not duct tape, which leaves residue) so it doesn’t swing open and damage the latch. Note the wattage, year of purchase, and brand on a sticky note attached to the side; this information speeds up trade-in eligibility checks and helps recyclers route the unit correctly.
Handle Built-In and Over-the-Range Models Differently
Over-the-range and built-in microwaves involve more steps than countertop units. Most OTR models from GE, Whirlpool, and Samsung hang on a metal bracket secured to a wall stud and bolted through the upper cabinet. Shut off the dedicated 20-amp circuit at the breaker, unbolt the cabinet screws, then lift the unit off the bracket — they typically weigh 60 to 80 pounds and a second pair of hands is non-negotiable. The vent ducting may need disconnection too. Trade-in programs at Home Depot and Lowe’s will haul away OTR units for $35 with a new appliance purchase, which usually beats trying to wrestle one into a sedan.
Make the Right Choice for Your Situation
Deciding what to do with old microwave units comes down to three honest questions: does it still work, do you have time to list and meet a buyer, and is a recycling center within a reasonable drive? A working unit usually finds the most value through resale or donation. A dead unit belongs in an e-waste stream. Built-ins go through the retailer haul-away. Avoid the landfill path whenever an alternative exists — the magnetron alone contains beryllium oxide, which is genuinely hazardous when it enters groundwater. A 20-minute drive to a recycling center is worth the peace of mind.
