Grill Cleaning Tips

I have these little insects flying near the house. Besides cleaning, the best material to get rid of them?
I'm sure are fruit flies. So with the weather, grilled in a field, and many fruits and vegetables on the counter, I know this has not helped. We clean the house, but still see them around. Any ideas?
You can kill fruit flies or Rhine wine or cider vinegar 1. Discard any questionable fruit. Put all the fruit left in the refrigerator. 2. Pay either Rhine wine or cider vinegar in a plastic cup. (Do not use a paper cup or leaks in a few hours.) 3. Flies like Rhine wine or cider vinegar. Flying in the liquid and drown. 4. As vinegar or wine session at least 4 days or until all flies died. Then empty the contents into the toilet. Rhine wine works better than cider vinegar, but not old enough to buy wine, cider vinegar also works. –