Funilly enough, another topic for weekly discussion I was planning, was plastic and food. Really not a fan of having plastic around stuff that I eat, especially when heating it.
A study of baby-food containers shows that microwaving plastic releases millions upon millions of polymer bits.
Unfortunately, not everyone has an oven to heat things in, whereas microwaves can be easier and cheaper to come by. Not to mention the time convenience of using a microwave. But I agree it would be a healthier option.