I have quite an old cooker, and when I put foil paper in I notice little black things fall onto the foil from the top of the grill (I think broiling in US) compartment. Even when I don't cook if I put something in and hit the ceiling/gas heating element I can see these little black things fall.
I'm concerned it might go onto food and I'll eat them without knowing. Do you know what these are likely to be? Is it a hazard, or maybe time to get a new grill?