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Getting burnt gunk off of cast iron skillet?

Any suggestions for getting burnt gunk (from marinated flat steak) off of a cast iron skillet? I tried heating a little oil and dumping some course salt in there and scouring with a vegetable brush, which has worked for me before, but this time I can't get it off. Also tried wiping it out with half an onion (I heard this was a good way to clean a barbeque grill), but no luck.

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Quinciferous added about 2 years ago
Voted the Best Answer!

I always add enough water to cover the bottom of the skillet, then put it right back on the stovetop and heat it until the water begins to boil. This usually loosens up the gunk so that you can brush/sponge/wipe it away once the water cools. I have not found that it unduly strips the cast iron of its finish, either.

sfmiller added about 2 years ago

Put a small amount of water (1/2" is plenty) and boil until the crud loosens. Then scrub it out. If it's really stubborn, you may need to do this more than once.

Once it's clean, put the pan back on the stove to dry completely, then while it's still hot wipe the inside with a light coating of vegetable oil. Cool and put away.

If you get the same sticking problem next time, your pan probably needs a thorough cleaning and reseasoning.

Kristen W. added about 2 years ago

Ah, thank you! I forgot to mention it, but I tried water but didn't heat it all the way to boiling. Will definitely try it that way. What does "thorough cleaning" mean, if not the procedure described above, by the way?

Kroka_kitchen
maryvelasquez added about 2 years ago

Burning off the gunk in a very high oven, followed by a scouring with coarse salt, once worked for me. If you have a charcoal grill, you could do the heating outside, eliminating any smoky vapors. Cast iron can stand very high heat.min fact, if your house burns down, you may be able to find your skillet in the ashes.

Kristen W. added about 2 years ago

Thanks, I'll try the oven if boiling water doesn't work. And good to know about my pan's fire- resistance :).

Junechamp

June is a trusted source on General Cooking.

added about 2 years ago

When the pan is (still) warm, coat heavily with Kosher salt and scour the pan with that. I never put water in my cast iron skillet. It removes the cure.

08270410avatar_messbrasil
mensaque added about 2 years ago

Boiling some water and vinegar for a few minutes always does the truck-but it smells bad!

08270410avatar_messbrasil
mensaque added about 2 years ago

Trick!!!I meant to say trick...rsrsrs!

Kristen W. added about 2 years ago

Tried heating the pan and scouring with lots of Kosher salt to no avail. I thought of vinegar but didn't know if the acidity would be a problem. ChefJune, if water removes the cure, wouldn't vinegar do that also?

Sit2
Sam1148 added about 2 years ago

Put in the oven if you have a self cleaning cycle...you might need to re-seasoning it as it could burn off some of the oil at high heat.

The worst case: Take it to a auto-body shop that has a sandblaster and have them resurface the pan. Look for a mom/pop shop that's independently own. Of course you'd have to re-season in that case.

Quinciferous added about 2 years ago

Oh no, it still won't come off? That must be some seriously baked-on gunk! If several rounds of heating a half inch of water and boiling for a few minutes hasn't worked, I don't know what to tell you -- you aren't boiling off all the water, are you? I suppose you might have to strip the pan and re-season it.

If you do need to re-season the pan, this is a great explanation of how to do it, with plenty of science!
http://sherylcanter.com...

Waffle3
ChefOno added about 2 years ago


Sounds like it's time to get serious. Lots of ways of getting rid of the problem.

Here's an article from Cook's Illustrated:

http://www.cooksillustrated...

And here's an easy method:

Spray a heavy coat of oven cleaner on the pan and place it in a plastic bag. Allow it to sit for two or three days. Scrub with a brass brush or similar. Reseason. Wear gloves.

Kristen W. added about 2 years ago

Isn't oven-cleaner pretty toxic stuff? Will rinsing it out with water after (but before reseasoning) be a enough to make it safe to cook on?

Zester_003

pierino is a trusted source on General Cooking and Tough Love.

added about 2 years ago

Vinegar and water works for me, but yes, you will have to re-season. Yesterday I bought a cast iron skillet that according to the antique dealer is 100 years old. Amazingly well maintained. These things last forever.

Waffle3
ChefOno added about 2 years ago


Oven cleaner is indeed toxic but it will all come off with soap and water after it has done its job. The only danger is getting any of it on your skin, in your eyes, or breathing any of the mist or vapors. That's the tradeoff for a product that can cut through the worst baked on crud virtually without effort on your part.

The other time-tested method is to burn it off. A couple of posts above suggest either a high oven or the oven's self-cleaning cycle to accomplish the task. The problem there is smoke, both unpleasant and carcinogenic. Mary's suggestion of throwing it on the barbie (right in the coals) would be the way to go if you want to take that tack. Personally I'd rather take the chemical route than deal with the soot and grime.

Incidentally, I just saw the blog reference posted a few up from here. [Shaking head] So much misinformation I wouldn't know where to begin…

Chrisppp added about 2 years ago

Maybe not great for cast iron (though I do use water on all my cast iron) but for other baked on gunk I boil the water with a little bit of dish washer detergent (dry powder, not liquid soap) in it. Smells awful, but gets the gunk out really well!

Kristen W. added almost 2 years ago

Well thanks to all -- I now feel I have an arsenal of strategies to try here! I am going to accept that re-seasoning is a likelihood and proceed from easiest to most pain-in-the-butt method (though I think I'd probably just buy a new pan before taking a cast-iron skillet to an automotive shop) and hope for the best!

No need to email me as additional
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