A Foundry in Every Kitchen
WolfWithoutAClause writes "Bored with making the same old food or
plasma in your microwave? David Reid sounds like he is. He's using his domestic microwave oven to melt iron, silver and bronze! Over 900C! I don't know about you, but I'm going to be checking the temperature of my pizza rather more carefully in future..."
You could try reading the article which mentions what happens with a fork and why it doesn't occur with the setup used.
But that would require a brain cell I guess and you don't seem to have one spare.