Skip to main content

How to clean cast iron so you don’t ruin expensive cookware: An expert’s guide

All of the dos and dont's for cast iron pans

Ribeye steak cooking in a cast iron pan.
Amy Ellis Photography / Amy Ellis Photography
How to Clean Cast Iron with Mike Whitehead of Finex Cast Iron Cookware
In the culinary world, cast iron is a tried and true format able to cook foods in a very specific and very attractive way. Yet, many of us don’t know how to work with the stuff appropriately, whether it’s seasoning a skillet or simply keeping it clean and in excellent working order.

We thought about talking to a chef but quickly remembered we could take it one step further. So, we reached out to our friends at FINEX, who specialize in beautiful cast iron cookery out of their Portland headquarters, to get the lowdown on the basic sanitation rules when it comes to this cook-approved alloy.

Recommended Videos

Our quest for clean answers involved Michael Griffin, the brand director at FINEX. He reminded us that cast iron is heavy-duty and can beautifully prepare any number of dishes, and the cleanup is, thankfully, relatively easy. With that simplicity comes the added urge to use cast iron even more, whether you’re cooking in your kitchen or over a campfire.

Person cleaning a cast iron pan.
Image used with permission by copyright holder

How to Clean Cast Iron

Don’t worry; chances are you already have everything you need to keep cast iron clean. The same kitchen utensils you cook with every day can also be used to wash. After all, with cast iron, it’s less about a squeaky clean regimen than keeping the seasoning layer fresh and eliminating other build-up. “After cooking, scrape clean with your spatula, rinse with hot water, and completely dry,” Griffin says. “Don’t just air dry; warm your cast iron on the stove and oil it lightly if it’s lost its shine. Buffing a light coat of oil on the inside of your cookware with a paper towel or rag is best.”

Over time, or after cooking with certain ingredients, you may have to deal with more residue. In that case, you may need a few extra tools, but nothing unusual. “Don’t worry if you’ve got stubbornly stuck-on food,” Griffin says. “A chain link scrubber, rock salt, or a wood scraper can get it. Sticking is often a sign of thin seasoning. Try building it up again by buffing a thin oil coating into the cooking surface and heating it until it smokes.”

Cast iron set on a kitchen counter.
Image used with permission by copyright holder

Proper Cast Iron Upkeep

Alright, your skillet is clean, but there are some additional things you can do it keep it that way or at least make the next round of cleanup all the easier. “Unlike synthetically coated cookware, cast iron can, and often should, be used with metal utensils,” Griffin says. Using a sturdy metal tool will help the integrity of what you’re cooking and also keep your skillet from collecting too much gunk.

“A thin metal spatula, like a fish spatula, is a fantastic tool for cast iron cooking,” he continues. “Not only does it make flipping and serving foods easier, but it also helps you keep the cookware clean while you’re cooking. Scrape stuck-on bits or get underneath steaks and other seared proteins with it so you can flip them with their seared crust — and flavor — intact.”

Cast iron skillet on marble slab with steak and knife.
Image used with permission by copyright holder

What to Avoid

There are a few things not to do when cleaning your cast iron cookware. Don’t put it in the dishwasher or soak it for prolonged periods. All that water can cause the vessel to rust. Many advocate against using soap when cleaning this metal, but there’s little harm in doing so, at least every now and again. The soap can put a dent in the layer of seasoning on your skillet, but that can easily be brought back to life with more cooking and some oil (and other fatty deposits). Every time you work with cast iron, you’re essentially adding another little layer of goodness to its seasoned base. Some soap and water will cut into that a bit, but you’d have to wash often and vigorously to get rid of it completely.

Whether you have a new cast iron pan or your great grandma’s hand-me-down, you should take care of it properly. A cast iron pan that is cared for and used properly can last for decades and provide thousands of delicious meals. Follow the tips above and your cast iron pans will turn into coveted family heirlooms in no time.

Mark Stock
Mark Stock is a writer from Portland, Oregon. He fell into wine during the Recession and has been fixated on the stuff since…
A complete guide: How to clean your oven racks
Most of what you need for this task is in your home already
Inside of a modern empty oven

Let's be real. When it comes to household chores and responsibilities, cleaning oven racks falls pretty low on the fun-to-do list. It's messy, it's greasy, and it tests the line of needing to be a circus contortionist in order to reach all those dark, dingy corners.

But it's a task that simply must be done. A dirty oven can actually affect the taste of your food, and if the situation is dire (no judgment here), even lead to food poisoning in certain cases. So, as grimy and gruesome as the chore can be, it's an important one to conquer. Just think of how rewarding a squeaky-clean oven will be and about all the delicious casseroles waiting to be prepared and enjoyed, a testament to your efforts.

Read more
You won’t believe these 6 ways to clean burnt pots and pans
You'll be surprised what a few household items that you already have can do for your dirty pots
Getting ready to clean a burnt pot

We've all had to say goodbye to an unfortunately burnt-beyond-repair pot. However, not all crispy pans are a lost cause. So before you cast out that crusty iron pan or that over-browned brownie sheet, we've got some tips that might keep them around a few more rounds.

With just a few everyday household products, you will be surprised at what a little bit of nature (and a lot of elbow grease) can do. Here's how to bring those burnt pots back to life. These methods aren't that hard to do, but they do take a little patience and some elbow grease. Fortunately, the reward is extremely satisfying! So, here is how to how to clean burnt pots and pans.
The vinegar and baking soda method

Read more
Turns out reheated French fries don’t have to be gross
Tricks to return the crispiness to your leftover fries
Inside of an air fryer with a pile of golden brown, freshly cooked French fries

It's universally accepted that the potato is the world's best comfort food. Its thousands of applications and culinary contributions are nothing short of astonishing, and it is to be praised. But let's be honest. Even if the potato's only gift to the world was French fries, it would still be worthy of the crown. There's just nothing better than a French fry.

The problem with French fries, though, is that it's hard to reheat them without ending up with a weird, flabby, soggy mess. Of course, French fry leftovers are a rare thing, but it can happen. So if you find yourself with leftovers that you want to reheat, it’s important to choose the right cooking technique, so they can be just as tasty as the first time. So let us show you how to reheat fries the right way, but first, a brief history lesson.
French fries: A brief history
Did you know French fries have been a popular food ever since they were invented back in the late 1600s? Though originally a Belgian creation, French fries got their name from American soldiers who were stationed in a francophone region of Belgium during World War I. French fries have taken the world by storm to become one of the most popular foods of all time. OK, the history lesson is over, let's move on to showing you how you should be reheating fries.
How do you revive leftover fries?

Read more