When should you throw away your microwave?

Author: Fae Willms  |  Last update: Sunday, March 29, 2026

A good microwave will last approximately seven years. Of course, there are many variables to consider that can affect this. The more often you use it the shorter the life is likely to be, as is misusing it by putting inappropriate items in it.

When should you get rid of your microwave?

Most microwaves are designed to function for 10 years. This means even if yours is over 10 years old and still working perfectly, you should still consider replacing it. In some cases, you may be forced to replace your microwave even before it hits the 1-decade mark.

Is it OK to use a 20 year old microwave?

Microwaves older than 10 years or with faulty doors should be replaced immediately in order to reduce radiation exposure while you cook.

How do I know when to replace my microwave?

Five Signs That You May Need to Replace Your Microwave
  1. Cooking times are off. If your food cooks too quickly or too slowly, test your microwave's power by placing one cup of water inside and turning it on for two minutes. ...
  2. The door seal is compromised. ...
  3. Issues with the keypad. ...
  4. Old age. ...
  5. Odd smells.

How do you know when a microwave is going bad?

Issues like odor, smoke, and even electrical sparks are serious. if such things happen, switch it off immediately, unplug the appliance, and consider replacing it. Microwaves are meant to cook faster, so if you find your food is not properly heated or not cooked to the desired doneness, replacing it is a good idea.

6 REASONS TO THROW OUT YOUR MICROWAVE TODAY!

How to know if a microwave is unsafe?

6 Signs It's Time to Replace Your Microwave
  1. Smoke, sparks, and burning smells. These are signs of a serious and urgent problem. ...
  2. Food isn't cooking properly. ...
  3. It makes horrible sounds as it cooks. ...
  4. The door doesn't seal properly. ...
  5. The keypad doesn't function. ...
  6. It's over 10 years old.

What is the life expectancy of a microwave?

The average microwave oven lasts about seven years with normal use, and even less with heavy use and poor maintenance. A large family may find themselves replacing their appliance every four to five years as they become more reliant on its use to heat up snacks and leftovers, or to defrost meals.

Is it worth repairing a 7 year old microwave?

Factors to Consider

Age of the Microwave: Microwaves typically last about 7 to 10 years, so if yours is in the 7-year range or older, repairs might only offer a temporary fix, making replacement the better long-term option.

What causes a microwave to go bad?

It may be a damaged power cord, a bad fuse, or a malfunctioning circuit board – all of which are issues with the microwave itself. This microwave failure may also be from a natural cause. Have there been any power surges or storms near you? That can cook the wiring in your appliance.

How to test your microwave?

Heat the water for exactly 2 minutes and 30 seconds on the High power level. The High power level is the default heat setting on the Microwave. A temperature rise in the range of 28 to 40 degrees Fahrenheit (15 to 22 degrees Celsius) indicates that the Microwave oven is heating/cooking properly.

Why we don't throw out old microwaves?

Don't Toss Out Your Broken Microwave

Because of their electrical components, microwave ovens are considered e-waste in some places, and improper disposal will get you some serious fines and/or into a bit of legal trouble.

What is the best microwave brand?

As the best microwave overall, we chose the Panasonic Microwave Oven; it combines a 1,200-watt motor with a compact exterior. If you're looking to save money and space, the Commercial Chef Countertop Microwave is the best budget microwave: simple but effective, much like microwave cooking itself.

Is a 40 year old microwave safe to use?

If you've looked after it well, there's no reason why a vintage microwave should be dangerous. However, it is possible that the screen or rubber seals around the door may have perished, allowing some radiation to leak out. For peace of mind, buy a microwave leakage tester.

When should I dispose of my microwave?

Microwaves break all the time with an average shelf life of eight years. Whether it's donating an outdated model or tossing it alongside other broken kitchen appliances, learn how to get rid of an old microwave in six easy ways.

How long should you own a microwave?

To avoid replacing yours more than about once every 10 years—which is how long most manufacturers tell us they should last—you'll want to take care of it. Your microwave may not get as grimy as your oven, but even so, one of the best ways to keep it humming along is to keep it clean.

When should a microwave be replaced?

According to Consumer Reports, these magical appliances typically last around nine years. That number can vary, depending on how often you use it and the brand. Though microwaves can be repaired, it's often more cost effective just to get a new one and send your old one to be recycled.

What is the common failure of a microwave?

Issues with the door switch, internal fuse, magnetron, diode, high-voltage capacitor, and electronic control board are common causes of microwave malfunctions, requiring repair or replacement by a technician.

Do microwaves get weaker with age?

The microwaves are generated by a vacuum tube called a magnatron. As with all vacuum tubes, their emission weakens over time so in theory a old tube may required a bit longer cooking time.

How can you tell if a microwave is going bad?

When to replace the microwave? Common signs that your microwave needs changing
  • Making funny noises.
  • Smells like electrical burning.
  • Isn't cooking food in the usual time or cooking unevenly.
  • Needs help to work properly – such as a spoon to hold the door closed.
  • Keypad has stopped working.

What shortens the life of a microwave?

If you don't clean your microwave regularly, accumulated grime and food particles can cause performance issues. This buildup can affect how your microwave heats and operates, leading to inefficiency and potential damage. Make sure to wipe down the inside of your microwave frequently to remove any spills or splatters.

How much does an average microwave cost?

Small models start around $60, and midsized models are typically in the $100 to $400 price range. OTR microwaves can be had for under $200, but most we test cost $500 and up.

Do more expensive microwaves last longer?

Yours will probably last about 10 years. But when it's time to replace it, you needn't spend much money on a new one. Most inexpensive microwaves are made by only a couple of manufacturers, so it doesn't make much difference which one you buy.

Is a 10 year old microwave safe?

On average, a microwave can last anywhere from 5 to 10 years with proper maintenance. However, many people may have microwaves that have surpassed that and are still working. While it may seem like a great cost-saving measure to keep using an old microwave, it may not be the best option in the long run.

Can a microwave last 20 years?

Most microwaves last about 10 years, depending on their quality and how often you use them. Most microwaves last 1500 to 2000 hours but some low-quality microwaves last only 500 hours. One problem with a low-quality microwave is you will have to run it longer to heat up your food.

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