
Is this normal?
There is always black residue, always.
The way I clean it is to scrub it with soap and water, then I put it back in the stove to dry and then rub some oil. But every time I wipe it down it always has black residue.
I did "restore" it when I first started using it by giving it a 30 min vinegar (half water half vinegar) bath, scrubbing it, and then adding oil and baking in the oven at 450 for about an hr, twice.
Is it safe?