Microwaving plastic with food means you are essentially radiating a petroleum products that can leach into your food. Solution: only microwave food in ceramic or glassware.
I have boiled water in the microwave in a glass measuring cup. I just wait alittle bit before I pull it out and make sure my face is not close to it. But since we got the water cooler it has hot water too so we do not need to heat water in the microwave anymore.