When Is Microwave Unsafe To Use? [Updated 2023]

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Are you wondering to know that “when is microwave unsafe to use”? As we all know Microwave is one of the most used appliances that is becoming more popular day by day. There are a lot of benefits of microwaves.

We can easily cook, heat, and reheat foods in it. It is not time-consuming. It is an easy and fast way of cooking and reheating but that’s true microwaves don’t last forever. That’s why sometimes it becomes unsafe.

Now you must have to know when is microwave unsafe to use. This is really good, you can easily notice that when the microwave is not safe for you. Moreover, you need to read this helpful guideline to know about the signs of a microwave unsafe to use. In this article, we are going to explain everything in detail.

Let’s get started for further detail!

Signs of a microwave unsafe to use

These are six main signs of an unsafe microwave oven:

Microwave Unsafe To Use
  1. Burning smells, smoke, or sparks.
  2. The poor cooking performance or not heating properly.
  3. Unusual sounds.
  4. Unresponsive controls.
  5. The age of the microwave.
  6. A poor seal on the door.

When you notice these signs, that means you need to replace the microwave and now it’s not safe to use it. Now, let’s talk about the issue in greater detail, and also provide some tips on what to do next.

Burning Smells, Smoke, or Sparks

Always keep in mind that, when you notice a burning smell, smoke, or spark, that means you should not use it and now your microwave is in need of urgent replacement. Avoid continuing to use a microwave that’s malfunctioning. When you notice these signs then you just turn off the microwave immediately and disconnect it from the outlet.

Basically, this problem might with the magnetron. The magnetron in the microwave is a critical component. You can fix it you just need to replace the appliance. Being a technical issue, it might possible to repair a microwave, but don’t attempt it yourself. Take it to the repair center.

Poor Cooking Performance

The microwave is designed to cook food quickly. But if you notice that increase the heat setting or the cooking time is not working properly, that’s a sign not to use your microwave. If your microwave is still under warranty, then you should be getting your microwave serviced because when these issues start to happen, then they typically come back again and again.

If you’re not sure about the power then you can test it easily. You just need to take a cup of water heated on the highest setting or cooking timing for two minutes must be close to boiling point. If it’s not close to boiling at that time, then it is not safe to use.

Unusual Sounds

Every microwave has its own basic sound and it makes its own noises through running or functioning. But if you hear buzzing or grinding noises, or some unusual sound of the microwave that means your microwave doesn’t have much more life. If you notice a rattle then you should check that the turntable might come loose from the rotating ring.

If it is not seated properly then seat it correctly and check if the sound goes away with that simple solution. One more thing you should keep in mind is that your microwave should be clean as well because it is impossible for bits of food to get stuck in the rotating ring and after that this ring is creating sounds.

Unresponsive Controls

If there is a modern microwave in your kitchen, then it is possible that it uses a touchpad for the various settings. If you’re trying to add time increments then it might be time to check for a replacement microwave. First of all, give it a clean first though. Sticky bits of food might get stuck in-between buttons. So you need to give it a quick scrub with an old toothbrush.

A Poor Door Seal

Microwave Unsafe To Use

Basically, when you don’t shut and seal the door properly, it is unsure to use. A good seal on the door is important for user safety and also for cooking food properly. So it is your duty to check the integrity of all your kitchen appliances within a year.

In the case of your microwave, you just need to take a closer look to check if any cracks or other signs of malfunctioning. So we can say that a poor door seal is not secure to use.

The Age of Your Microwave

Basically replacing appliances around the seven-year limit, but if you have a high-quality microwave then it should last up to ten years. After that time period, microwaves start losing their performance. You might miss out on some useful new features. And to use the oldest microwave is never a good idea.


Well, that’s all you need to know about the conditions when is microwave unsafe to use. Now you know what makes a microwave unsafe properly after reading this useful guide. These issues we have explained above in this guide aren’t equally severe, but if you see smoke or sparks that are coming from your microwave then we must recommend stopping using your microwave immediately. Now you should be careful about these conditions. We hope so this article will help you a lot in this case!

Sania Imtiaz

Hi, My name is Sania Imtiaz and I’m from Pakistan. I’m a housewife. And I Love cooking. And I’m a believer in making life peacefully with FOOD. I’m doing cocking from the last 10 years and I’m sharing all my knowledge related to cooking on TheKitchenWaves.com. I’m sharing all my experience on this site related to cooking products.

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