I thought everyone knew this by now, but microwave ovens and metal containers do not mix. I’ve known this for twenty-five years. I also have second-hand experience proving this. I witnessed a beef sandwich quickly appear as its flaming foil wrapper melted away one evening while working fast food as a teenager. Yet, there I stood today in my office pantry, smelling the remnants of some food item burning inside an aluminum foil bowl inside the microwave. The fun was over before I arrived, but I established a mental note in the front of my mind to always know my location with respect to the nearest fire exits in my building. It appears I will need them at some future date.
As you were.