Broken Microwave?

[Scarlett]

My microwave is several years old. I just reheated a bowl of vegetables and had to put it in for 2 mins then 1 min then 2 mins before it was hot. I’m sure it’s struggling to heat! There are rusty bits in it too. Is this how they die, do I need a new one? Is it dangerous?

[Old_Geezer]

Worry if it sparks. Other than that if rust isn't getting into the food I reckon it's ok to use. However it may be getting inefficient so keep an eye on it and replace when it gets too much. That's what I'd do.

[Cloverjo]

Mine has rusty bits, but is still going ok otherwise.
Daft question, but is it on the highest setting? Sometimes when I’m cleaning it I accidentally put it on a low setting.

[TonyV]

I would bin it and get a new one, the door seals are not as good at sealing when rusty and can emit the micro waves.

[Boto]

Bin it. They’re cheap enough theses days.

[johnk]

Try a mug of water for 2.5 minutes at full power, it should be almost boiling.