PROBLEM: Yesterday when I was watching the games I wanted to have some popcorn. But I accidently burned the popcorn in the microwave and I got a dingy brand new microwave due to terrible smell + yellow stain .

QUESTION: How would you clean up this mess? I literally tried all cleaning material.None worked out.

SOLUTION: Use acetone free nail polisher to remove the yellow stain. Apply the yellow stain on cotton balls to see the result. Boil water+vinegar+lemon juice mixture in the microwave to get rid of the smell