I leave a yogurt container filled with cotton balles dipped in peppermint oil to keep mice from nesting in my bbq during the winter.

Roaches aren’t as big a concern here.

Usually I have paper wasp problems over anything else. They love making a home in the grill.

At least they’re close to fire.

Crank it up to max and leave for 20 minutes?

Way too long, you’ll ruin the taste.