About a week ago my sister burnt a bag of popcorn in the microwave almost to the point of flames. It took about 2 days for the smell to leave our house, but the microwave still REEKS! How do I get this smell out? I've tried lemon oil and some mixture that the manual suggested (Basil, Lemon juice, vinegar, etc), but nothing worked. Any ideas would be greatly appreciated (other than buying a new microwave, which may happen if all else fails). Thanks in advance!