GE Monogram cooktop
My GE Monogram cooktop is new and looks great in my new kitchen the only problem is I'm having a hard time cleaning the cooktop. The black part under the grates. It is stained and I have used a sponge with soap and water. I've used bar keepers friend and bought a degreaser (weiman) and still I cannot get it cleaned. Does anyone have any thoughts on this? What can I use to clean it so it is shiny again? I've only had it since December 2013. I attached a photo of what I'm talking about.