- Never put metal in the microwave
The microwaves emitted from the oven bounce off metallic materials, so the metal in the oven will cause the interior to heat up unevenly and cause damage. Metals include aluminium.
- Use proper containers
If you use containers that aren’t friendly for the microwave, it could leave behind toxins. Appropriate containers are normally made from ceramic glass and more rigid plastics
- Close the door properly
if the door isn’t closed the food won’t cook properly, and radiation can escape.