I got a Staub enameled cast iron pan as a wedding gift, and I used it for the first time last night. I didn't oil or season it, just rinsed it with soapy water, and put it on the stove (electric high heat) to cook some chicken. I finished it off in the oven at 500 deg.
Anyway, my cooking left some black sticky grease stains that are nearly impossible to get off. I used hot and cold water and scrubbing with dish soap and a green scrub pad to no avail. I then looked up some info online and tried the salt scrub, which also didn't work. Finally, I tried filling the pan with soapy dish water and heating it on the stove on low-medium heat for a couple of hours. While this did remove SOME of the grease stains, it also left a UNDISSOLVED soap stain. What I mean by this is that a drop of the green dish soap did NOT dissolve in the water and seems to have hardened onto the bottom of the pan after heating. It's like a tiny marble that has melted and attached to the pan. I have scrubbed and scrubbed in hot and cold water, and I've even tried heating the pan in water again to see if it will soften. It will not. I (carefully) used a sharp knife to dislodge this little stain, but it is as hard as a rock. What can I do now?
Furthermore, I'm still not entirely clear what I need to do to clean and maintain this pan. I know raw cast iron needs to be cleaned without soap and then seasoned. Staub indicates that my pan (enameled) doesn't need to be seasoned and can be cleaned with just soapy water. Do I just treat this pan like a regular aluminum pan then?