Microwave is Rusted – Should you use it?

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Rust buildup in a microwave? This can be a point of concern – depending on the associated damage, it can pose a real health risk to you when the microwave energy leaks through the broken surface. There is also the danger of rust contaminating the food.

This post shares an opinion on whether a rusty microwave is safe to use or not and how you can fix the rust.

Common causes of Rusting in Microwaves

Here are some of the reasons why the microwave can rust:

#1. Use of abrasive cleaners. Abrasive cleaners damage the protective finish that keeps away moisture and oxygen, both prerequisites from the underlying steel.

Use a soft damp cloth soaked in mild soapy water to clean both the interior and body of the microwave.

Do not use corrosive detergents, thinner, alcohol, chlorine, or any scourging pads and steel wool for example.

#2. Physical damage to the microwave

Knocks that cause dents that damage the protective coat on the microwave create opportunities for rust to form.

Therefore position the microwave in a location where there is minimal risk of objects falling and damaging the microwave body.

#3. Normal wear and tear with frequent use

The protective coat or finish wears down with age and usage of the microwave.

As the microwave gets older, you’re more likely to see rust stains forming either in the interior or on the body of the microwave.

To slow the buildup of rust:

Keep the microwave door open after cooking to allow the floor of air to dry out any moisture that may have built up in the oven.

Clean the microwave interior of any spills after cooking. Leaving food spills for several days contributes to rust formation.

#4. Defects in Manufacture. Sometimes the quality of finish by some manufacturers is low making the microwave more susceptible to rust.

Check reviews by other users if the microwave model you plan to purchase has a rust problem or not.

This will save you time and headaches that you may otherwise suffer as you attempt to follow up with the manufacturer for a replacement

Before you buy, check if other buyers of a particular make and model have reported a rust issue in their feedback and reviews.

Is a Rusted Microwave Dangerous? Should you Use it?

Always consult a qualified microwave technician or manufacturer for guidance

If there is a risk of contamination of the food or the body of the microwave is damaged, the door does not close firmly, or even if the wire mesh on the door is compromised then there is a clear health risk.

That said, minor rust stains on the body of the microwave that have not resulted in damage to its body creating opportunities for the radiation to leak probably should not stop you from using the microwave.

You can touch up these stains or remove them using Bar keepers soft cleanser.

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Should you Paint over the Rust?

Yes, you can paint over the rust. There is a touch up paint that you can apply to the stains and sections of corrosion to protect and cover the rust stains.

You can also a cleaner such as Bar keepers soft cleanser to remove the rust stains on the microwave surface.

Closing Thoughts

If there is a risk of contamination of the food or the body of the microwave is damaged, the door does not close firmly, or even if the wire mesh on the door is compromised then there is a clear health risk.

Do not use the microwave. Always consult the manufacturer or a qualified technician.

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