"ceed" wrote in message
...

Do you know what I should do on the inside of the grill?

If you have access to an air compressor get an inexpensive hand held sand
blaster and blast it out. I have a small older Craftsman hand held and it
does wonders, Harbor Freight has some pretty cheap ones that look like they
might work also. RM~

PS, Wouldn't try this on porcelain coated grates