if i go to a supermarket, how can i buy a microwavable plate?!
Answers:
These days, it's usually printed on the bottom & package.
some sets of dishes will say if they are or not. most plates you will buy are perfectly fine. dont get anything that has a design with any kind of metal.
Generally Microwave safe dishes will say "microwave safe" or "microwavable" on the bottom of the dish.
It should say - if not ask the attendant. Or take it over to the microwave section and give it a burst in one of them.
I researched your question and to my surprise I found this: so many great China products are microwave safe these days.
http://www.microwavecookingforone.com/Di…
Approach the Microwave section
Use money. That seems to be today's standard...