The "finished" skillet. Ready for use and continuous improvement.The purpose of this post is to demonstrate how one can recondition a piece of cast iron cookware using items you probably have in your house or apartment. This process uses no specialized equipment (like an electrolysis tank) or large amounts of a nasty chemical (lye). It also does not require power tools or very much elbow grease.
You will need:
- 1 can of aerosol oven cleaner
- plastic bags
- ordinary white vinegar
- a scrub pad or #0000 steel wool
- olive oil and/or Pam cooking spray
- patience
There is abundant surface rust and lots of crud and gunk (if I get too scientific with these terms let me know).
I paid 9 dollars for this skillet at an antique store. I'm sure you could buy one just like it for less. Even after spending the time and money required to restore this skillet I still think it was a bargain compared to some crude, "Made in China", abomination endorsed by a bonehead celebrity chef. {See here for exhibit A. & exhibit B.}
If you are lucky enough to inherit some cast iron this may be similar to what you receive. Thousands of similar pieces are probably sitting in basements, unused and unloved for decades. Hopefully this post will spur a few people to restore their heirlooms and give these fine old pans some more stovetime.
The first step in getting this Wagner #6 cleaned up is to remove the old ruined seasoning. To do this use a heavy plastic bag and the aerosol oven cleaner.
Spray the skillet and coat heavily with the oven cleaner and then place the pan in the bag and wrap it up. I'm using a sandwich bag to keep the cleaner off of my hands as it can burn your skin.
The bag will keep the oven cleaner from evaporating so it can work longer. I reapplied oven cleaner every 2 days and it took a week before the old seasoning washed completely away. This is where you need patience. Let the oven cleaner do the work, it will remove all the caked on seasoning and no damage will be done to the piece being cleaned.
Once the old seasoning is removed you can wash the piece in hot water and lots of soap.The next step is rust removal. I used vinegar and hot water to soften the rust. Some people like Coca-Cola for this task.

I used a quart of generic white vinegar in 2 gallons of hot water. The skillet sat in this mix for 30 minutes after which I lightly scrubbed the entire piece with 0000 steel wool. Some collectors like the Chore-Boy brand of non-metallic scrubbing pad for this job.
Whether you use steel wool or a scrub pad the point is to merely remove the surface rust. You are not trying to buff or polish the skillet. After washing towel dry the skillet.At this point the skillet was ready to be seasoned. If you live in a humid environment (I don't) you may need to begin the seasoning process as soon as you have removed the rust. Untreated cast iron begins to rust immediately in a damp climate.
For this skillet I used the same method I wrote about here . The skillet was placed in a 250 degree oven for 20 minutes to dry completely. After this I turned the oven up to 550 degrees and let the Wagner #6 heat up for 45 minutes. The blazing hot pan was removed from the oven and rubbed with a medium coating of olive oil. The hot cast iron absorbs the oil and a decent dark brown patina is visible on the iron in just a few minutes. Keep rubbing the oil into the metal until it begins to build up. At this point grab some new paper towels and rub the oil off the skillet until it just looks wet. Put the piece back into the oven but turn the oven off. If the cast iron has a rough finish you can leave it alone until it cools. If the piece has a smooth finish wipe it down every 5 minutes to prevent the oil from forming droplets on the surface. After 30 minutes prop the oven door partially open to cool. Keep wiping the cooking surface with the oiled paper towels.
I hope I don't need to mention that cast iron heated to 550 degrees is extremely hot to handle so don't burn yourself. I use my cooling rack so I don't need to hold the iron.After this one seasoning the skillet is smooth, clean, rust free, and a nice dark brown that will become shiny & black with use. (see the picture at the top of the post)
For other seasoning methods I like see this post. LINK
To clean the iron after cooking I follow these steps. LINK
Do you have some old cast iron you need to recondition?
Another easy iron stripping method that some use is to put the cast iron piece into a self-cleaning oven and run it through a cleaning cycle. I think this is a fine method provided you can replace the piece easily. In other words, if the cast iron is modern and you can easily buy another identical piece, use the oven. On old pieces from makers that are no longer around I won't use the oven as I know of several people who have cracked older pieces. (The old pieces tend to be thinner walled.) My own brother cracked a Victor #8 skillet with the oven method. I've been told the self cleaning cycle on electric ovens can go from 800 degrees F to over 1200 degrees F. 1200 degrees F doesn't hurt cast iron but going from 1200 to 70 degrees too quickly causes the thermal shock that does the damage.






53 comments:
I love your blog!!! I just happened upon it and it's wonderful. I love the advice to taking care of your cast iron cookware. I decided over the past year that all these teflon coated skillets were pure evil and I was not going to use one ever again. I do my cooking in my cast iron skillet and dutch oven. I need to get another skillet. Now, I won't be afraid of getting an old, neglected one! Thanks alot and I'll be tuning in for more wisdom.
Right On Brother! I just reconditioned my e-bay find. 10 dollars well spent. Thanks for the info. I am jazzed on my new 90 year old cast iron skillet.
Way to go Greg! This is a very detailed concise procedure that will really help a lot of people. Great photos of the procedure as well.
Zank
Eliza28 - Thanks, 100 years ago I think most people knew how to do this stuff and then we got modern and in many ways dumber.
Robin - See the links section of my blog for some Teflon related reading. (I've totally stopped using it myself) and thanks for the comments.
Chilebrown - You got a beauty of a skillet and it is in hog heaven under your care.
Zank - Thanks, I hope people will use the info and start digging their own cast iron.
~FYI~
Zank writes a great blog called "Zank's Iron Skillet" that is a must read for fans of cast iron cooking.
Chilebrown writes the stupendous "Mad Meat Genius" blog which is acclaimed by all (including Vegans).
I love this! Thanks for taking the time to post details and pictures on how to take care of cast iron!
Thanks, this is really helpful. Do you know if worn down (probably from extended use/abuse) enameled cast iron can be seasoned or saved in some way? I bought an old enameled cast iron pot but the interior surface is very rough.
Jnette,
Thanks!
Anonymous,
Just keep using it and don't worry about it. If you wore off all the enamel you'd just have a cast iron dutch oven (on the inside). It wouldn't be as nonreactive as a piece with intact enamel so you would need to cook different things in it.
The first enameled piece I bought is a Cousances and I screwed it up learning how to use it but it still works fine. You can almost see through the enamel on the bottom but it still gets plenty of use.
Greg,
Will your cleaning technique work in cold weather? I just found a Griswold Tite Top No. 7 Dutch Oven in BAD shape... lots of rust and crud everywhere. The inside is almost solid rust. I want to use your technique, but need to leave it outside my apartment (and its winter right now!) What do you think? Is it safe to do so?
Jason,
It would probably work but not as well as room temp. or warmer. You'd probably need to reapply the oven cleaner daily to keep it going.
Love the Griswold #7 DO.
Hi, Greg.
I left a comment in your Wagner Ware area. I have the #3, #6, and #8 "-O-s." Question,... I've removed 75% of the decades of build-up. The bottoms are completely clean. Remaining, still, is residue approx. 1/16", or more, thick around the inside walls and the outter walls of the skillets. What are your thoughts on using a 2" (aka 50.8mm) Fine Crimped Wire Wheel, attached to a hand-drill, to remove the remaining carbon (burnt stuff)? Your reply will be awaited, and thanks in advance.
Anon,
I'm inclined to say keep using the oven cleaner and plastic bags. The active ingredient in canned oven cleaner is lye and eventually it will do the trick with no chance of marking the iron.
If you want something a lot faster and you have a battery charger see the articles on Electrolysis on this site.
Lastly, I don't use a wire wheel but some do. IF you go this route the choice seems to be a SOFT stainless steel wheel. Brass will turn your iron gold colored and you'll regret it. Just get the carbon off and do not polish the iron. Did I mention that the wheel needs to be SOFT?
Good luck and remember, nobody makes iron like the three pieces you have anymore. Take your time and do it right.
Good looking out, Greg.
I'll take your advice, and resume the oven-cleaner method. Like another poster, I too reside in an apartment. Needless to say, the fumes-factor can be a bit much. There are some skin irritations that I'm dealing with as well.
I had to chuckle, as I'm certain that you detected my anxiety in being "done with" this project.
A brief intermission is in order to acquire the proper tools, and the necessary patience, to "do it right." Again, many thanks!
Hello,
I just bought an old le creuset #27 skillet for a dollar at a church yard sale. It doesn't look like it's in bad shape but inside there is about a quarter sized area that looks "eaten" into. Saying that, I was concerned about non-stick coatings, etc. Before I begin your skillet seasoning method how would I know if the interior of this piece or of another, old cousances #24 skillet I just saw today would have any dangerous non-stick coating that, once scratched up, would be too dangerous to use? As you can see I'm completely new to cast iron.
Anon - I am no expert on Le Creuset.
I think many LC skillets have a dark grey or black enamel interior coating. Others do have Teflon or similar PFTE based coatings.
If either is "eaten away" I'd probably try removing the interior coating with a wire brush on an electric drill. Go slow and you should soon be down to the cast iron which can then be seasoned.
I would bet the enamel would be harder to remove than the relatively soft Teflon.
Hi Greg,just used this method to bring a #8 skillet back to life that me and a buddy unearthed while clearing his land,this is the first time i did this so i thougth it turnd out pretty well,just a few pits left from the rust,but i guess that will be ok.it does not have a name on it just "8 SK MADE IN USA D" on the bottom with the breaks in the heat ring at 12,3,9,and the handle as 6 do you think it might be a lodge? great site keep up the good work.
stiper1 - That pan sure sounds like a Lodge.
If anyone else used the 8SK designation with breaks in the heat ring I have not heard of it.
Use it often and I bet it will become a favorite. It has a cool story behind it.
Recycling at it's finest.
greg,any idea of the age of 8sk designation on my skillet? just curious if you might know.
striper1,
Lodge pieces are really hard to date as even Lodge never kept very good records.
The 8SK designation is still in use today.
Heat Ring = pre 1993
Are the pouring spouts larger than what you see on curent Lodge skillets? If yes I'd guess it was made before the 1960s.
If they are similar in size that would indicate to me 1960-1993.
I would contact Lodge and ask them.
Greg,
Nice site. Found the info very useful. Just used this method 2 nights ago to clean/reseason three Wagner Ware skillets. I had several new Lodge pcs. and was very surprised how smooth the old pcs came out to be. I had a couple comments and questions:
1.) To speed the cleaning, I wiped the disolved gunk off the pans with paper towels and applied fresh oven cleaner several times over a week. I felt this sped things along.
2.) I found I had to towel dry the skillets before putting them in the pre-heated oven to dry in order to prevent flash rust.
3.) I noticed that my two smaller skillets (put on the top rack in oven) came out very shiny and black, while the big one (on the lower rack) came out dark brown but not so shiny. So I guess heat makes a significant difference.
So now a question, I've noticed that the big skillet has a convex bottom. It sits OK on a electric ringed stove element, but I doubt it would sit nice on a smooth top stove. Is this common, or is this piece warped from my seasoning (temps could have gone 600°F+), or its previous life on a gas stove?
Thanks,
-Greg
Hey Greg - cool name!
You are right about the multiple applications of oven cleaner and probably correct about wiping off the gunk before reapplying. It only makes sense but eventually the lye will do the work if laziness kicks in.
If you are dealing with nice old smooth pieces the towel drying should help. I do this myself but I guess I left it out. On the more modern, rougher castings I bet a significant amount of moisture would stay in the iron's surface.
Iron cookware seasons at different rates. I've seasoned some that turned black and shiny in no time and others stay dark brown even after repeated high heat use (but they work just fine).
If you want shiny cast iron it is tough to beat Crisco. A lot of sellers insist on using it for the shine it helps impart.
Warped cast iron cookware comes from someone either heating it up too fast or forgetting about it and leaving it at high heat for a long time. I ruined a skillet this way myself.
If you have an infrared thermometer you'd be surprised how hot a skillet gets if you leave it empty on a burner for a while.
Your 600 degree oven did not do this.
Thanks for reading the blog!
I inherited my mother's large cast iron skillet. It was lidded, so it may be called a dutch oven. Either way, I had it sitting on my stove top for display and my step-daughter turned on the wrong electric burner and instead had my skillet sitting on the burner on high for at least 15 minutes. She set off the alarm and I realized what had happened. I immediately took it off the burner. The lid was on it and I let it set for a moment and then poured oil into it rubbing it on all sides. After it cooled I poured out the excess oil and wiped with a paper towel. I inspected it and noticed small pits in it and it looks like a crack was forming on the bottom. (Does that happen or would it just crack?) Of course there is a visible ring where there was direct contact with the burner. It is somewhat warped as well. My question is, is it safe to cook in? I am already heartbroken that this happened, but I wouldn't want to run the risk of it cracking. My mother just passed away last month and there was a lot of comfort food coooked in that skillet. Any information would be appreciated.
~RA
RA - Sorry to hear about your mom's passing and the warped skillet.
We all ruin a piece (or two) of iron cookware. It happens and it is how we learn to be careful.
I've not heard of pitting resulting from overheating.I suppose it is possible. I have seen CI pans with an almost wok like bottom after overheating. It would be tough to cook in one like that.
As far as wondering if it will crack nobody can answer that. I had a Wagner Ware square skillet crack for no good reason and I've seen other pans suffer real abuse and not crack at all.
If it isn't too warped and you have a gas stove you could probably keep using it. If you are worried it may just be better to put it on display somewhere.
Greg,
I have a special situation. I have a 48" Star resturant grill that uses cast iron grill grates. We use the grill for tailgating and the grill sits in a enclosed trailer and is exposed to moisture all year. I have had the grill for over 5 years now and the grates are getting rusted. I was reading your article on reconditioning the skillet and thought I could use this same approach.
Do you believe this is the best solution for my problem?
Additionally what do believe is the best way to perserve the grill in the trailer all year long? Any advice would be great.
I was actually looking for decorative black iron and found your pages. Thank you for the time it takes to make a site like this! I have my Mom's amd Grandmother's cast iron, as well as other pieces from people who couldn't or didn't want to be lifting their cast iron any more. Mine is used regularly and lovingly. My Mom told me when I was really young that every woman should have a large cast iron skillet, but her reason was probably a little darker than the skillet... At any rate, mine is smooth from decades of use by many and will get use from some of your recipes here! I have cleaned mine in a gas self-cleaning oven, and have apparently been lucky, but since I use cast iron for a majority of the time I have not had to repeat cleaning drastically in that way. I only cleaned what was unused and grossly set pieces, and put them back to good use! New cast iron looks strange to me, I don't have a need to buy new and probably wouldn't, but thank you for explaining new use too!
Kissamew - Thanks for reading and commenting!
Chef Jeff - My Weber gas grill sits outside all year (for over 6 years)and it has cast iron grates.
The Weber is my bad weather grill when it would be too much hassle to light charcoal.
I use a brush with stainless steel bristles and I brush the grates when they are good and hot before I cook. It removes the rust fast. Cooking and spraying Pam on the grates seems to provide enough seasoning to keep them in decent shape.
You probably don't use your grill very often?
I would get a good brush and try scraping the grates down and then wiping them down with a paper towel soaked in olive oil. Do this when the grill is good and hot both before and after you cook. Tongs help with the paper towels.
Treating the grates like a skillet would be a lot of work!
If the grates are rusting in storage see if you can find some big desiccant bags to absorb the moisture and keep them near the grates.
Hope this helps and thanks for reading.
What a helpful blog! I can't believe it's taken me this long to find it but now that I have, I'll be checking in regularly. Many many thanks for your detailed posts and pictures!
Jean - Thank you!
Hi, I had tried to restore an antique cast iron griddle I had bought last year that was really rusty and ended up getting almost all of it off but I had used some chemical thing that my dad told me to use to get it off, well I haven't touched it since then and now there is like some yellow crud on it and I'm not sure what it is. WIll your method take that off and will it be safe to use on an antique? Will I be able to cook on it after I use your method? Please help!!! Thanks Austin.
Anonymous - I don't know what you used so I can't guess on what the "yellow crud" is.
Spray-on oven cleaner uses lye for the active ingredient and it is considered a safe method for removing carbon, grease and the other stuff that one finds on cast iron.
You just need to get the griddle down to bare iron and then wash it really well to remove any residue from your cleaning.
Ok but do I have to throw it in the oven and do those steps too or just spray it and then wash it off? Also, if I use that lye on it, will it be safe to cook on?
Anon - Yes, you have to season the iron after cleaning it down to bare metal.
You will wash the lye off and then apply seasoning over the iron so it will be as safe as anything.
I got what I think is a grill on e-bay. It is smooth cast iron and big enough to span two burners on the stove. It smelled of auto grease and I think was used in a garage for something. It is too big to fit into the oven except kitty corner and very hard to manipulate when it is in there and hot plus the grease runs off onto the bottom of the oven. Can it be seasoned on top of the stove. Does every bit of rust need to come off before it is seasoned?
flaxsseed, It sounds like you won a griddle. I sure like mine.
1) I would definitely remove all the rust. Some people try to season over it but that is a bad idea and will cause you grief down the road.
The stainless steel Chore Boy scrubbers or even Brillo Pads will do a good job on the rust. Don't forget Coke or Vinegar and Water to soften the rust.
2) Yes you can season it on top of the stove. It just won't be as even over the entire griddle but in time it won't matter.
Another option is using a barbecue grill to season it.
Thanks for the great articles on re-conditioning and seasoning.
I have several pans soaking in oven cleaner as we speak. One of them is almost ready after 5 days of soaking. You are correct that patience is the key to success. The plastic bags really help too!
I also enjoy your articles on different iron makers. I am new to collecting and had never even heard of Piaqua Ware. After reading your article on Piaqua Ware Favorite 'smile logo' pans, I bought one on E-bay. What a beautiful pan..and it cooks so well. I am hooked on Piqua Ware now. I also like Wapaks too. Maybe I am weird but I like the Piqua Ware Favorites and Wapaks as much as the early Griswolds...maybe even slightly better. The casting seems more consistant and I love the thinner walls. Since I am new to American cast iron...be kind if my taste is way off base ;) Prior to this, I had only Cousances skillets (which are very nice too...just not as old).
I would love to see more articles on your favorite makers...or favorite specific items from different makers.
Thanks for a great site.
mary - Thanks for reading the blog.
You aren't crazy. 2 of the nicest skillets I own are Favorite Piqua Wares.
Don't tell anyone how nice they are or people will start collecting them and the prices will go up.
Great post. I've bookmarked this for when I pickup some "slick" cast iron from ebay vs the new rough stuff.
Two questions:
- Any specific brand or type of olive oil that you use? (Extra virgin might get pricey. :)
- Most people seem to use veg oil. Curious why you like olive oil better?
Russell - No particular brand. I've been buying Costco's Kirkland brand lately and it is good enough for me.
I only keep 2 kinds of oil in the house for the sake of simplicity. Peanut oil and ExVirg Olive oil. You don't use more than a few tablespoons to season a skillet so I don't worry about the price.
Another plus in olive oil's favor is the low burn point which I think may help contribute to the patina.
Others swear by Crisco or original Pam cooking spray.
Good luck!
Hi there! I stumbled across your page recently while looking for info on some cast iron I had lucked into. In the lobby of my apt bldg, someone abandoned 4 cast iron skillets, in atrocious condition. I almost didn't take them as I already had one. I ultimately did, figuring if I didn't want them, I knew enough foodies who I'd just give them away to. Anyway, I cleaned the first one, using oven cleaner, and I saw "Wagner Ware" and googled it, and here I am. Bottom line, I am now in possesion of 4 Wagner Ware skillets that resemble the one you demonstrated reconditioning on-a #3, #5, #6, and #8. I cleaned the #6, but I need a breather from the cleaning before I tackle the other 3.
Now, I have a question about the cast iron that I originally had in my posession. I was curious about its manufacturer. There's no makers mark anywhere. The only markings on the skillet are on the back. There's a "No. 7", and "10 1/8 IN" on the back, near the handle. Also, there's a heat ring on the bottom. Any ideas about who might have manufactured it? My grandmother gave it to me, but I think she had found it at a yardsale-I've had it since the early 90's.
Hi Colin - Your skillet sounds like a Birmingham Stove and Range (BS&R for short).
Good luck on the Wagner Wares. I know what you mean when you say you need a breather from the cleaning.
Sometimes I'm gung-ho to work on iron and other times (like now) I just don't feel like it.
This is the best site! I was wondering if you could use CLR or ammonia instead of the oven cleaner.
Thanks!
And another question, is this mainly for Wagner ware? I just got some today at a yard sale. The skillets don't say a brand on them - only a number. The dutch oven is Cabelas. Does it make a difference?
Hi Erin - I would not use either CLR or ammonia.
This method will work on any cast iron cookware.
Greg
Great blog!! I'm new to seriously using cast iron. I inherited a skillet with a bumpy black exterior coating and the coating has "disappeared" from the center bottom. Where the coating is gone, it is rusting and seems to be a hot spot when cooking. Is there anything I can do to fix this?
Well after years and years of use my 1058a skillet that I inherited from my mother when I moved out is finnaly getting cleaned using this method.Thanks alot for the info and the beautiful pictures.
Toni - I assume you mean the seasoning is gone from the center portion of the underside? (not the cooking surface)
This is easy to fix. You need to get rid of the rust (steel wool or a SS scrub pad) and then just pop the skillet in the oven upside down and let it get hot for 30 minutes and add the fat of your choice. After this first attempt the rust should stop and as the seasoning builds the hotspot should go away.
Plan doing this a few times.
Sm1nts2escape - That is what I like to hear! One of my goals with this blog is to get people to discover the kick-butt cast iron they may have sitting in their basement and start using them again.
I followed your directions, and my pans look great, except there are a few spots that look like maybe they didn't have as much oil on them, because they are lighter. It's kind of splotchy with lighter spots. Should I just heat up again and add more fat to those spots?
Erin - If the pans are free of rust and caked on gunk and you have a good seasoning base laid down I would just park them on the stove and use them for just about everything.
Using them often will get you where you want to be with these pans.
Cooking in them is more fun than seasoning in my book.
Sorry I'm asking so many questions, I also wanted to ask about some spots where it looks like I had too much oil. They're a little sticky. Should I also just use them, and it'll all even out after cooking?
This is THE BEST advice I have found on restoring old cast iron skillets.
I have read some advice that says to turn the skillet upside down in the oven over some aluminum foil - I suppose that would keep the oil from pooling - wondered what you thought?
Turning them over is fine but you should not use enough oil/fat to pool up to begin with.
Very thin coats is what you want.
Thanks for your blog! The photos and detailed explanations on cleaning are great and very helpful. It looks like you have a smooth/glass/ceramic topped stove. Do you use your cast iron on that surface? Any problems? The instructions for my stove (which looks exactly like yours in the photos with the pan on the cooling rack) say not to, but sometimes I just have to - it is the perfect pan. I do try not to slide it across the surface. So far I have been OK, but I do use my cast iron (thank you granny) much less now. Do you think I will hurt my pans or stove if I keep using the cast iron?
Anonymous - I've used cast iron on it daily for years and I slide pans around all the time.
That being said I'm replacing the stove with a gas cooktop as soon as I have more free time to do the install.
just a question...is it healthy to use the Easy-off? won't the chemicals get into your food then?
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