Is Rust On Cast Iron Dangerous?

Rust appears on cast iron when the pan or utensil has been exposed to moisture for prolonged periods of time. It is easy to remove, so should you? Or can it stay on the cookware?

May 4, 2025 · 1 min · 155 words · Dylan Kline

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This heavy-duty cookware is prone to rust.

Can you cook around it?

Or should you toss it in the trash?

Set of Two Rusty Cast Iron Skillets over white.

Credit:Getty Images

So, is rust on cast iron dangerous?

The short answer is no.

Is Rust On Cast Iron Dangerous?

Even if rust on your cast iron isnt dangerous, it isnt the most visually appealing, and theU.S.

Department of Agricultureadvises against ingesting it or using the pan before the rust has been removed.

Rinse it thoroughly, and then let it dry completely.

Oil:The second step is to oil the pan inside and out.

Apply a very thin, even layer of cooking oil to the cookware.

If you use too much oil, your cookware may become sticky, the brands website states.

Bake:The final step in the process is to place cookware in a hot oven.

Bake at 450-500 degrees (Fahrenheit) for one hour.

Allow to cool and repeat as necessary to achieve the classic black patina.