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Looking to buy a new cast-iron pan? Here are 6 common cookware myths decoded

Cast-iron pans are inexpensive and one of the best searing powerhouses. But can you use soap on it? We break down 6 myths about it.
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No kitchen is complete without a great cast-iron skillet ... or two!Getty Images
/ Source: TODAY

Cast-iron pans are inexpensive and one of the best searing powerhouses you can own (scroll down to shop the best-sellers on Amazon!). Whip it out for your indoor meat-cooking needs, like a steak or roasted chicken with vegetables. It’s also perfect for anything that would benefit from a crust, like cornbread, potato hashes, or a pan pizza.

But there are a lot of myths out there about how to properly care for your cast-iron cookware. We turned to J. Kenji López-Alt, the author of the cookbook, “The Food Lab: Better Home Cooking Through Science,” to help us bust a few common myths about the mighty cast-iron pan.

Myth 1: You can’t use soap to clean a cast-iron pan.

If you’re like me, you’ve never had so much as a drop of soap hit the cast-iron pan because lore says that it will damage the seasoning. That’s nonsense, according to Lopez-Alt. “The same way we can use soap inside a Tupperware container without taking the plastic away, you can use it on a cast-iron pan without removing the seasoning,” he told TODAY Food. Don’t go overboard with the soap, of course. But if the pan is dirty and needs a scrub with soap to remove grime, go for it. “The main point is that you don’t always need to, but if you have to use soap sometimes, it won’t ruin your cast-iron pan,” he says.

Myth 2: You can soak a cast-iron pan that has caked-on food.

More damaging to a cast-iron pan than any amount of soap is having water soak in it for a long period of time. To get crusted-on bits of food off the pan, pour a generous amount of kosher salt into the pan and use a dry cloth or paper towel to wipe the salt around the pan to help dislodge food scraps. Don’t allow a lot of time to go by between cleaning the pan and re-seasoning it. Do the cleaning and re-seasoning at the same time right after dinner is finished.

Maple-Apple Tarte Tatin

Myth 3: Seasoning a pan takes a lot of hard work.

An emphasis is always placed on correctly seasoning a brand new cast-iron pan. “My advice for seasoning is to just cook the things you normally cook,” said López-Alt. “Don’t take all these extra steps to season your pan — just saute in it.” To re-season after cooking, rinse with water (and soap, if necessary) before placing it on high heat on the stovetop so the water evaporates. Then, carefully rub it down entirely (handle and bottom of the pan included!) with whatever oil that’s on hand using a paper towel.

Myth 4: Cast iron pans heat evenly, so you don’t need to warm them up for a long time.

Cast-iron pans have gained the inaccurate reputation of heating evenly. To combat uneven heating, López-Alt advises to preheat a cast-iron pan much longer than other pans you own, around 10 minutes, moving it around the burner in the process. On the upside, the cast-iron will hold more energy than an aluminum pan and the temperature won’t drop when you add food. What does this really mean? A perfectly seared steak can be mastered thanks to the fact that a cast-iron pan both radiates more heat and stays hotter throughout the cooking process than other pans in your kitchen.

Myth 5: Metal utensils are a big no-no.

Using a metal spatula to flip eggs or a metal scraper for hamburgers is fine as long as you aren’t deliberately scraping at the pan itself. López-Alt said the seasoning is resilient and can handle the tiny nudges and dings from metal utensils.

Myth 6: Handle your cast-iron pan with kid gloves.

As a whole, we’re being far too sensitive toward the mighty cast-iron pan. “Go to an antique store, and you’ll see cast-iron pans that are 100 years old,” said López-Alt. “It’s not a delicate flower but rather as tough of a material as you can get.” There are only two ways to really screw up a cast-iron pan: the first is not rubbing it down with oil before storing it after use and the second? Getting it very hot and then dumping water into it which can form cracks in the skillet.

Want to upgrade the cast-iron cookware you already have? Or are you looking to get a collection started? Below are the three best-selling cast-iron pans on Amazon.

1. Lodge L8SK3 10-1/4-Inch Pre-Seasoned Skillet, $22, Amazon

Cast iron lodge skillet

2. Lodge L8SGP3 Cast Iron Square Grill Pan, $13 (normally $33), Amazon

Cast iron grill pan

3. Lodge L9OG3 Cast Iron Round Griddle, $11 (normally $24), Amazon

Flat griddle cast iron pan

This article was originally published on Oct. 26, 2015.