this post was submitted on 13 Dec 2025
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Asklemmy

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For me its the old fans and vacuum cleaners. Over 40/years old each and still going strong. Clear labeling inside and have been fixed up multiple times.

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[โ€“] Zachariah@lemmy.world 11 points 4 days ago (1 children)

cast iron and carbon steel pans

[โ€“] sem@piefed.blahaj.zone 2 points 4 days ago (3 children)

Can you unwarp a cast iron pan?

Asking for a friend

I have a round griddle that was warped enough it was almost un-usable on my glass top stove. Here's what I did.

Using a ruler and an angle grinder, I knocked down the high spots. When I put it on the stove again it was significantly better but still a bit wobbly so I took a cheap 2-sided sharpening stone and continued taking it down with that. It took a few hours to get as flat as I wanted but, I felt like it was worth it.

[โ€“] Zachariah@lemmy.world 4 points 4 days ago (1 children)

https://irvingdiner.com/how-to-flatten-cast-iron-pan-bottom-py259/

This has three methods: sanding, hammering, heating with weights. (not linking because I have no idea if the site is slop)

[โ€“] sem@piefed.blahaj.zone 3 points 4 days ago

Thanks! Wow I thought it was ruined.

[โ€“] Nurse_Robot@lemmy.world 4 points 4 days ago (2 children)

Shocking with cold water when it's still hot

[โ€“] affenlehrer@feddit.org 4 points 4 days ago (1 children)
[โ€“] Nurse_Robot@lemmy.world 2 points 4 days ago (2 children)

No I meant... How do you warp cast iron? That blows my mind

[โ€“] sem@piefed.blahaj.zone 2 points 2 days ago* (last edited 2 days ago)

It's easy. Get it really hot then dunk it in a sink of cold water.

My guess is a low cost, thin cast iron pan