[mothered]

Regarding the health risks of microwaving, I understand that the gold standard is to reheat your meals in pyrex or similar. This is not all that practical when many microwave meals come in plastic type containers.

True, I've also read something similar to this.

Also, depending on the type of food, It's said that you shouldn't "reheat" meals more than once. In other words, once you heat a given meal and leave It for a few hours, It's best not to reheat It. For OHS (Occupational Health and Safety) reasons, a lot of hospitals and the like adhere to this.