I made popcorn in it when I first got it. When restoring it I discovered the heating element was broken in 5 places. I purchased a new heating element and I was anxious to finish the machine and fire it up. However, after all of the work I put into the restoration, I have decided I don't want to get it all dirty. I will continue to make popcorn on the microwave.
If you use prewarmed coconut oil it cleans up really easy and fast... you gotta use it.. cmon man!!!