Is it normal for the black to come off the burner grates? I've only had the stove for about a month and I'm starting to see the silver in a lot of places. Won't this start to rust? Is this normal?
Thank you in advance.
What you're seeing is likely not the deterioration of the cast iron, but the residue being left behind from the bottom of your pans.
I doubt they are actual iron, probably coated steel or aluminum, and the coating is coming off. Contact the seller. This is a warranty issue.