How to remove rust from cast iron griddle

It's easy! Whether you inherited vintage cast iron covered in rust or forgot to dry your skillet after washing, we'll show you a few simple steps that will restore your cookware to like-new condition. Let's take a look at how rust occurs and ways you can tackle it so you can start cooking again in no time.

Why does cast iron rust?

Our cast iron cookware is made of a mix of pig iron, steel, and alloys. Without the protective layer of carbonized oil called seasoning, cast iron is susceptible to rust. Even a well-seasoned pan can rust if it's left in the sink to soak, put in the dishwasher, allowed to air dry, or stored in a moisture-prone environment.

  There's no need to throw away a cast iron skillet that's a little (or a lot) rusty. In fact, the next time you stumble upon some rusty pots and pans at an antique store or flea market, imagine the potential! Follow these five easy steps to restore cast iron cookware to its former glory.

How to remove rust on cast iron

A little (or a lot) of rust on your cast iron cookware is no reason to panic. Follow these simple steps to refurbish your cast iron finish, and you'll be cooking for decades to come.

Step 1

Scrub and wash your pan

Scour the rusty sections with steel wool or the Lodge Rust Eraser. Then wash the pan with warm, soapy water. This step may remove portions of the seasoning, but that's okay because we're preparing to re-season the pan.

Step 2

Dry thoroughly

Completely dry your cast iron skillet with a paper towel or lint-free cloth. You can place it on the stovetop on low heat for a few minutes to make sure it's completely dry.

Step 3

Apply oil

Add a very thin layer of cooking oil to the entire surface of your cast iron with a cloth or lint-free paper towel. Go easy on the oil—you want just a thin layer, not enough to drip or run when you tilt it. Thin layers are important for baking seasoning into the pan.

Step 4

Bake for 1 hour

Preheat your oven to 450–500 degrees F. Place aluminum foil on the bottom rack of the oven to catch any excess oil. Put your cookware upside down on the center rack. This helps prevent oil from pooling on the cooking surface. Bake for 1 hour.

Step 5

Cool in the oven

Turn the heat off and allow the cast iron skillet to cool in the oven. This allows the seasoning to further cure and adhere to the iron.

Video

How to Restore Rusty Cast Iron

Seasoning and Rust FAQs

This will happen if too much oil is used to season your cast iron or if you didn’t heat it for a long enough time. It’s easy to fix! Just pop it back in the oven for another hour, or until the stickiness is gone.
 

Cast iron will become dull if it’s heated without any oil on the cooking surface, or if it’s heated without enough oil in the pan to cook the food. The dullness comes when the oil on the pan burns off before cooking. To fix this, just re-season the pan. If your cast iron still looks dull after re-seasoning it, repeat the process until it achieves a slight sheen.

Still have questions?

No worries! Chat with, call, or email our friendly Customer Care Associates.

Contact Us

SaveComments

We independently select these products—if you buy from one of our links, we may earn a commission. All prices were accurate at the time of publishing.

(Image credit: Erika Tracy)

The method of cleaning cast iron is something of tradition passed down to generations along with the cookware itself. Some cooks and cast iron diehards dare not let theirs near water, much less soap of any sort, and letting one rust may indeed fall into the book of unpardonable sins for some Southerners.

But fear not: During a visit to the Lodge factory in Tennessee, we learned the proper way to restore rusty cast iron from the experts themselves. A few simple steps at home can restore rusted cast iron cookware to cook-ready condition.

Don’t Throw Your Rusted Cast Iron

Regardless of the extent of rust, there are options beyond throwing out rusted cast iron. For severe rust that covers most of the cookware surface, take the piece to a machine shop to have it sandblasted and restored to raw cast iron, then season immediately. You can start with step four here, or use the following tutorial.

Most commonly, neglect or moisture results in what’s called “profile rusting,” which can be seen and felt on the cookware. Thankfully, profile rusting is easily removed at home in an afternoon. Follow the steps in this post and you’ll be all set.

How To Restore a Rusty Cast Iron Skillet

What You Need

  • Steel wool
  • Dish soap
  • Scrubbing brush, scouring pad, or sponge
  • Dish towel or paper towels
  • Vegetable oil (or cooking oil of choice)
  • Aluminum foil
  • Oven

Instructions

  • Remove all the rust:Use fine steel wool to remove rust from affected areas. Scour the skillet until the area returns to raw cast iron.
  • Wash the skillet thoroughly:Wash the cast iron with warm water and mild dish soap. Scrub with bristle brush, gentle scouring pad, or mesh sponge if needed.
  • Dry the skillet:Thoroughly dry the cast iron immediately with a clean dish towel or paper towels.
  • Cover the pan with a coating of oil:Apply a small amount of vegetable oil (or cooking oil of choice) to the entire piece.
  • Don’t forget the bottom and handle: When oiling, don’t forget the bottom and handle. Use only a small amount to avoid a sticky surface.
  • Place the pan in the oven:Place the cast iron upside down on the top rack of your oven. Place a sheet of aluminum foil or a foil-lined baking sheet on the bottom rack to catch any oil drips. Heat the cast iron for one hour at 350°F.
  • Let the pan cool before using:Turn off heat, let cast iron cool, then get back to cooking!

More on Cast Iron

How do I clean rust off a cast iron griddle?

Place the cast iron in a 50/50 vinegar solution..
Soak the pan for about an hour..
Scrub the pan with steel wool..
Rinse, soak and scrub again, if needed..
Dry pan fully..
Apply a thin layer of high smoke point oil..
Place the pan in the over at 450 degrees for 1 hour..
Allow the pan to fully cool and admire your handiwork..

What is the fastest way to remove rust from cast iron?

THE SOLUTION:.
Soak each piece of rusty cast iron in a solution of one part vinegar and one part water..
Using the brush, test each piece after 30 minutes to an hour to see if the rust is coming off. ... .
Once you have scrubbed the skillet clean of rust, rinse it thoroughly with water..
Dry skillet completely, and reseason..