I saw this reddit post where people said BKF was fine but that doesn't match what I'm seeing.
I just bought a new wok which I was about to season. It had a coating of oil/grease. I washed it with dish soap and then wiped it with a paper towel. The towel became very very slightly dirty
So I thought I'd wash it again. I had just got a bottle of BKF and thought, "oh, perfect chance to try this!". I washed it with BKF and immediately it started to turn rust colored. Wiping looked like this
So I washed it 2 more times with dish soap but the rush just keeps coming
You can see the wok in the back of that picture is all yellowed. There was zero yellow after the first wash, before using BKF
Here is what it looked like just after that last picture
And here it is close up 10 minutes later
The advice in that reddit post is to scrub even more with BKF to remove the rust but AFAICT it was the BKF that made it rust so using more is going to make more rust not wash it off.
Have I ruined this wok? I'm afraid to cook with it and get rust in my food. Should I have not used BKF on carbon steel? I have 2 carbon steel frying pans and a smaller carbon steel wok. I've never used BFK (or even soap) on those. Once seasoned I just kept them clean with water, scrubbers, and then oiling them with heat. I was planning to do the same with this wok and then this rust thing happened.
Woks aren't expensive so no worries if I need to discard it but a little freaked out about BKF induced rust.
Update: Given it's already covered in rust I washed it 3 more times with BKF. Every time, seconds after I finish rust forms again. Rinsing off the BKF and wiping I get a paper towel full of rust.
Update 2: Here's video of me trying to wash it. Before I can clean 1/2 of one side of the wok it's already rusted again