Dull topic I know!
Please let me know the make and model if you have a stainless steel or ceramic one?
My 85 year old mum goes through a microwave every two years. They go rusty inside and the paint flakes off, exposing the bare metal.
She has carers 4 x a day and I think they tend not to wipe it out after use. They also don't leave the door ajar to air.
I leave a set of microwave lids and a roll of kitchen towel on top of the microwave, but most times I visit, it needs cleaning and has a layer of water under the turntable.
So I'm after one with a stainless steel or ceramic lining. Ideally just a plain microwave, not a combination one or one with a grill. That would make it trickier to wipe out.
Any suggestions gratefully received, thanks!