The large rectangular containers are particularly useful ... benefits from the vacuum effect that happens when you heat food in the microwave. Abusing the lid in this way can cause it to warp ...

After all, how you store your food can make all the difference ... This pack comes with four large containers, all safe for the freezer, microwave, and dishwasher. The company also sells packs ...

If a container is not microwave-safe, it can leach harmful chemicals into food. A best practice is to use a microwave-safe bowl or plate instead of microwaving food in a plastic container.