Looks like a great meal coming up. How long has your picnic been on in that photo?
How do you keep your grate so freakin clean lol. Mine looked like that when it was new, that's about when that ended lol.
I use a degresser our kitchen help use at our Legion Bar. I got it at GFS a local supply company. I paid like $10 for a gllon of it and you can cut down to useable mixes. It will litterly remove everything. I had grates that was 3 years old and they came out looking like new. Used it on the inside and it cut right thru the smoke build up. Maybe a local food service store may be able to help in finding a quality cleaner.