What containers are safe to use in the microwave?
It is safe to use containers that are marketed (because they are government controlled) as microwave safe. You can use almost all your china and ceramic dishes as long as they don’t have a metallic glaze, i.e.: gold, silver, that orange which is copper and the blue which is cobalt. But white glassware, your old Pyrex standby, your measuring cup, all of those are perfectly wonderful microwavable containers.