Rust Ring under Turntable of Microwave Oven: Was Over-Watering with Boiling Pasta Water To Blame Or a Messy Roomie?

[Marielle]

My roommate has been using our landlord's microwave in the common area to boil
her pasta (in a 1 Qt t-ware plastic bowl for 20 minutes approx. 1-2 times per
week for the past year. /(IMO, I think it's more economical to use the gas
range since natural gas is way cheaper than electricity in our area, but she
thinks it takes too long.) /

Well, the rust-ring of doom showed up on the bottom of the microwave, under
the glass turntable recently and yesterday she decided to write a note to all
users about cleaning their messes better. I told her the "mess" was rust, and
she was causing it by boiling her pasta in water for 20 minutes in the
microwave where as everyone else uses it for mostly 2-3, or at the most 10
minute cook jobs. She said I'm wrong because her bowl was large enough to
prevent the water from boiling over the sides. I tried to tell her that
boiling water in an enclosed area such as a microwave for 20 minutes created
enough condensation to thoroughly flood the bottom of the microwave and even
when the microwave oven is clean, sometimes it's hard to see the water, but
eventually the little wheels that move the turntable start to remove the
paint, causing rust and then bare metal which may then start to spark and
catch on fire.

She doesn't believe a word I'm saying, so maybe I'm wrong. It's just my
theory. Does anyone know the cause of the "mysterious rust-ring" on the bottom
of our microwave?

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for full context, visit https://www.homeownershub.com/maintenance/rust-ring-under-turntable-of-microwave-oven-was-over-wateri-1135603-.htm

[Tekkie®]

Marielle posted for all of us...

If it's rust it's in-just, if it's food get in the mood...

So, in other words what is it, rust or food?

--
Tekkie

[Thomas]

Clean it. Do not be a slob.

[Marielle]

replying to Tekkie®, Marielle wrote:
To Tekkie: The answer to your question is: It was NOT food - the paint wore
away, the metal was bare, a red-ring of rust was all that was there. The muss
was confirmed to be rust, the microwave oven has been replaced.

I answered yours, now can you answer mine? Is boiling water in a microwave
for 20 minutes on a regular basis the cause of rust under the microwave oven
turntable? She won't believe it unless someone more qualified than me tells
her. Personally, I'm almost 100% sure it's the cause because several years
ago the same thing happened to my microwave oven after using an as-seen-on-TV
"pasta boat" (an oblong microwavable container that boils pasta in 17 minutes
- about the same time as a stove IMO). I never noticed the standing puddle of
water under the turntable until after the paint had chipped off and the metal
started rusting, but that was years ago, I learned from my experience.
Hopefully, she'll learn from hers and stop trying to blame other people.

[Marielle]

replying to Thomas, Marielle wrote:
To Thomas: Sorry, I thought I made it clear - the mess was rust, not food.
I have no problem cleaning other people's messes, I just have a problem with
being blamed for them.

I must not have been very clear when typing my inquiry; because two people
have replied so far, and neither of you seem to be able to understand my
question. So as not to receive anymore gems of wisdom such as "Clean it. Do
not be a slob." or "If it's rust it's in-just, if it's food get in the mood...
", I'll rephrase my question:

QUESTION (rephrased): If someone uses a 1 quart plastic bowl in a microwave
oven to boil pasta for 20+ minutes at least once a week, sometimes more often
- will doing this cause enough water condensation inside the microwave oven to
create a puddle of water underneath the glass turntable that will eventually
wear away the paint and cause the bare metal to rust?

Now that I've rephrased my question and hopefully made it easier to
comprehend, maybe I'll get more meaningful replies with some useful
information.

Thank you for your time.

[Marielle]

replying to Marielle, Marielle wrote:
I must not have been very clear when typing my inquiry; because two people

have replied so far, but neither seemed to understand my question. So as not

to receive anymore gems of wisdom such as "Clean it. Do not be a slob." or "If
it's rust it's in-just, if it's food get in the mood... ", I'll rephrase my
question:

*QUESTION (rephrased):* If someone uses a 1 quart plastic bowl in a microwave

oven to boil pasta for 20+ minutes at least once a week, sometimes more often
- will doing this cause enough water condensation inside the microwave oven to
create a puddle of water underneath the glass turntable that will eventually
wear away the paint and cause the bare metal to rust?

[Phil Kangas]

"Marielle" <

> wrote in message replying to Marielle, Marielle wrote:
> I must not have been very clear when typing my inquiry;
> because two people
> have replied so far, but neither seemed to understand my
> question. So as not
> to receive anymore gems of wisdom such as "Clean it. Do
> not be a slob." or "If
> it's rust it's in-just, if it's food get in the mood... ",
> I'll rephrase my
> question:
>
> *QUESTION (rephrased):* If someone uses a 1 quart plastic
> bowl in a microwave
> oven to boil pasta for 20+ minutes at least once a week,
> sometimes more often
> - will doing this cause enough water condensation inside
> the microwave oven to
> create a puddle of water underneath the glass turntable
> that will eventually
> wear away the paint and cause the bare metal to rust?

Boiling pasta for 20mins in a microwave in a plastic
bowl is just plain STUPID !!!

[Wayne Boatwright]

On Sat 24 Jun 2017 08:34:13a, Phil Kangas told us...

Yep, cooking food in the microwave for extended periods of time may
be fine if the container is relatively closed, or contains a modest
amount of liquid, but a bowl full of water to cook pasta makes no
sense. Most likely, every surface inside the cavity (including the
bottom under the revolving glass tray) will be covered with a huge
amount of condensate. If you have to do this, then the entire
cavity should be thoroughly wiped down, including removing the tray
and ring and floor of the cavity. By the tinme you've done that,
you cold have recouped the time by simply cooking it on the
stovetop. Some people hve absolutely no common sense.

--

~~ If there's a nit to pick, some nitwit will pick it. ~~

~~ A mind is a terrible thing to lose. ~~

**********************************************************

Wayne Boatwright

[Tekkie®]

Wayne Boatwright posted for all of us...

This post effectively address' your post. So if you consider me an expert
then tell her to stop doing it at my report. This report can be obtained
from the Tekkie Institute.

--
Tekkie

[Marielle]

replying to Phil Kangas, Marielle wrote:
Thank you, I agree! Especially when there is a perfectly good gas range
available just barely 2 feet away.

[Frank]

My wife might do potatoes but covers bowl with Saran wrap. We still
have rust problem from moisture. 20 minutes to cook pasta sounds
excessive as spaghetti takes less than 10 minutes. There is no
advantage in using microwave to do this. Constant boiling is not
necessary. You can hold near the boiling point without vigorous
boiling. At least wipe the microwave and leave open to get rid of moisture.

[trader_4]

Agree, boiling water to cook pasta is going to saturate the oven with moisture, it seems likely it will remain wet, especially in spots like under those wheels for a long time. Whenever I have something that generates significant moisture, I leave the door open after so it can air out.

I would also think that it probably costs more to boil water in the microwave like that than on the gas stove they have.

[Stormin' Norman]

Not to mention, steam can be quite corrosive.

[trader_4]

And maybe the plastic bowl releasing god knows what into the pasta, especially if it's not designed to be used that way. I'll warm up food in plastic, but even that I'm not too keen about.

[Stormin' Norman]

On Sat, 24 Jun 2017 18:52:51 -0700 (PDT), trader_4

I agree about the outgassing from different plastics. We always use
Pyrex type glass dishes, bowls and covers in the microwave. Sometimes
we use paper towels to wrap ears of corn for cooking, but if were me,
I would always use glass.

I am also quite fond of using the pressure cooker. For many things it
can be far superior (faster, better tasting, etc). Artichokes,
potatoes, larger amounts of corn on the cob, beans, etc, all benefit
from the pressure cooker.

[Marielle]

replying to Wayne Boatwright, Marielle wrote:
Thank you. I'm going to send her a link to this page..

[dollymi...@gmail.com]

[dollymi...@gmail.com]

Best advice 'e' manufacturer.

[Lilli]

I use my microwave for almost everything but after use just like any kitchen item I clean it remove turntable and wash it at_least daily dry underneath and NEVER close the door unless you are cooking. Rust will occur if it is left wet. Cooking a bowl of pasta in water will soak the whole thing in 20 minutes, it will then drip through even after drying.

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For full context, visit https://www.homeownershub.com/maintenance/rust-ring-under-turntable-of-microwave-oven-was-over-wateri-1135603-.htm