carlton pierre I'd never thought about the potential for a bristle to get left behind but it's certainly possible. Hopefully the fire will burn it off. I guess a metal scraper would be better.
That's making me think more about the oscillating multifunction tool. For those not familiar with it, it's a tool that's been around for a couple of decades, but, because of patent issues, has only been widely available for the last 3-4 years. It oscillates for a very short distance at a very rapid rate, and carries attachments for sawing, scraping (note the relevance), sanding, and things like grout removal. I don't want to advertise any particular brand, but you can look it up on Youtube
and see them in action for yourself (and you will see why I thought that there might be a useful grill cleaning tool attachment).