Re-seasoning Cast Iron

How do I re-season a cast iron dutch oven? I got one a couple of years ago and I don't think I did the seasoning properly. Can I save it? And how do I take care of it in the future?

This is what I do with mine, after washing it, I dry it in the oven. After it is completely dry and hot, I rub it with vegetable oil. After it has a good coating, I let it cool. After cooling, I wipe off the excess oil. I never get any rust spots on mine.

[Pete]

To reseason my cast iron skillet, I fill it with about 2-3 inches of veg oil. I then heat it on the stove to about 300 degrees and then put it into an oven for 2+ hours at 300 degrees. After the time I turn the oven off and allow the skillet, with the oil still in it, to cool in the oven. That should do it.
To keep your cast iron seasoned dont wash it. I just wipe mine out with a paper towel when I'm done

[m brown]

after a good scrub ( rusted beast only), heat to dry and rub with oil and salt. heat a few min. wipe clean and your seasoned.

I have always heard and have been told never to wash cast iron. It is too porous, it will never keep its seasonsing, etc. etc..
I always wash mine and I never have a problem with anything sticking or rust. Am I missing something?

I agree with Pete in seasoning but I don't think you need inches of oil. Just coating is enough and I recoat (or spread) the oil a few times while it is hot. Washing with soap you should never do but cleaning with hot water and a dish brush shouldn't hurt. Dry afterwards with towel and/or heat.

[judy]

I re season with a thick layer of salt. 'cook' for a few minutes.Empty pan, wipe clean and wipe over with a little cooking oil. I never have a problem with sticking.This method has saved a few pans in the past for me

A chinese way is, heat the chinese wok until very hot, red...let it burn away the dirts and rust, then pour oil into it and let it flame..pour somemore oil into it to cover the fire. after that pour away the dirty oil and open fire and heat until dry again , pour in water and boil , wash it with brush. Pour away dirty water, open high heat, burn until dry again then pour some oil in it to coat a thin layer to protect the surface and prevent sticking.