The safest way to dispose of an old microwave is to take it to a certified electronics recycler or a retailer that offers appliance take-back. Never throw a microwave in the regular trash because its capacitor can hold a lethal charge and the device contains lead, mercury, and other hazardous materials.
Dispose of old microwaves through certified e-waste recyclers, retailer take-back programs, or municipal hazardous waste collection events. Never put them in curbside trash or dumpsters.
- Microwave Capacitor Danger: The high-voltage capacitor inside a microwave can store a charge of over 2000 volts even when unplugged, posing a lethal shock risk.
- Hazardous Materials: Microwaves contain lead in solder, mercury in switches or backlights, and beryllium oxide in magnetrons, all regulated as hazardous waste.
- Legal Restrictions: At least 25 U.S. states ban microwaves from landfills, with fines for illegal disposal.
- Recycling Rates: Only about 20% of small appliances like microwaves are recycled; the rest end up in landfills, leaking toxins.
Why You Can’t Throw a Microwave in the Trash
Federal and state regulations classify microwaves as universal waste or e-waste because they contain components like the magnetron (which contains beryllium oxide), the capacitor (which can hold a dangerous charge), and circuit boards with lead solder. Dumping them in landfills can lead to soil and water contamination from heavy metals. Additionally, the capacitor can remain charged for weeks after unplugging, posing a shock hazard to sanitation workers or anyone who handles the unit.
Many municipalities now ban microwaves from regular trash collection, and you could face fines if caught. Even if your area doesn’t have a specific ban, it’s irresponsible and potentially dangerous to put a microwave in the dumpster. The best course is to find a proper recycling or disposal channel.
Step-by-Step: How to Dispose of Your Microwave Safely
- Unplug and empty: Remove any glass turntable, plate, or roller ring. These can often be recycled separately as glass or plastic.
- Check for retailer take-back: Best Buy, Home Depot, and Lowe’s often accept small appliances for recycling, sometimes with a small fee or for free if you purchase a new one. Call ahead to confirm.
- Find a certified e-waste recycler: Use Earth911.com or Call2Recycle.org to locate a facility that accepts microwaves. Look for R2 or e-Stewards certification to ensure responsible recycling.
- Municipal hazardous waste events: Many cities hold periodic household hazardous waste collection days where you can drop off microwaves along with paint, batteries, and chemicals. Check your city’s sanitation website.
- If all else fails, contact a junk removal service: Companies like 1-800-GOT-JUNK? will haul away the microwave and ensure it’s recycled, though there is a fee.
Can You Sell or Donate a Used Microwave?
If your microwave still works and is less than seven years old, you may be able to donate it to a thrift store like Goodwill or the Salvation Army, or sell it on Craigslist or Facebook Marketplace. However, many charities are selective due to safety and warranty issues. Call first to confirm they accept microwaves. Also, be aware that older microwaves (pre-2000s) may contain higher levels of hazardous materials and are less energy-efficient, making recycling the better option.
For a working microwave that you simply no longer need, posting it as free on a local Buy Nothing group or giving it to a neighbor can give it a second life. Just ensure it’s clean and safe to use.
How to Prepare Your Microwave for Recycling
Before dropping off your microwave, take a few steps to make it safe for handlers. First, unplug it and let it sit for at least 24 hours to allow the capacitor to discharge naturally (though it may still hold some charge). Do not attempt to open the casing yourself unless you are a trained technician—the capacitor can shock even after days. Simply leave it intact.
Remove any food debris, grease, and the glass turntable. Tape the power cord to the back of the unit or cut it off (if allowed by the recycler) to prevent tripping. If the microwave has a built-in trim kit, remove it and keep it for reuse or separate metal recycling. Finally, weigh the unit (most countertop microwaves weigh 30–50 pounds) and ensure you can lift it safely.
What About Built-In or Over-the-Range Microwaves?
Built-in and over-the-range (OTR) microwaves require extra steps. First, disconnect the power supply at the breaker or unplug the unit (if accessible). For OTR models, remove the mounting screws and carefully lift the unit off the bracket—it’s heavy and may need two people. The mounting kit, screws, and ductwork can be reused if you’re replacing with a similar model.
These larger microwaves are often accepted at the same recycling centers as countertop units, but call ahead to confirm size limits. Some haul-away services will remove the old unit when delivering a new one, saving you the trouble. If you’re remodeling, the contractor may include disposal in their fee—ask before they leave.
Pro Tips
- If your microwave is under warranty, check with the manufacturer—some offer prepaid shipping labels for recycling.
- Use a dolly or hand truck to move a heavy OTR microwave; the center of gravity shifts when you remove it from the bracket.
- Take a photo of the model and serial number before disposal—you may need them for a rebate on a new energy-efficient model.
- If you donate to a thrift store, ask for a receipt for your taxes; the IRS allows deductions for donated appliances.
Common Mistakes to Avoid
- Attempting to discharge the capacitor yourself by shorting it with a screwdriver—this can cause sparks, burns, or explosion.
- Putting the microwave in a dumpster or curbside bin—it’s illegal in many areas and poses a shock hazard to waste workers.
- Assuming the microwave is safe because it’s unplugged—the capacitor can hold a charge for weeks, even months.
- Leaving the glass turntable inside during recycling—it can break and contaminate other materials; remove it first.
FAQ
Can I put a microwave in my regular recycling bin?
No, microwaves cannot go in curbside recycling bins because they contain mixed materials and hazardous components. They must be taken to a specialized e-waste recycler or collection event.
Is it safe to scrap a microwave for metal?
Scrapping a microwave for metal is not recommended unless you are a trained professional. The capacitor and magnetron contain hazardous materials, and you risk serious electric shock. It’s better to let a certified recycler handle disassembly.
What should I do if my microwave gets collected by a junk hauler?
If you use a junk removal service, verify that they partner with an e-waste recycler and do not simply dump the microwave in a landfill. Ask for a recycling certificate if possible.
The Bottom Line
Disposing of an old microwave responsibly takes a little effort, but it protects sanitation workers, the environment, and your community. Always choose recycling over the trash can, and never tamper with the internal components. When in doubt, contact your local waste authority for guidance specific to your area.
