These disposable take away food containers can keep the food nice and warm, sturdy enough for hot soup, no leakage. And they are still the same sturdiness after storing in the fridge for a day.
These disposable kraft paper food containers with vented lids is the perfect container, it can not only be filled with hot soup, refrigerated/frozen, thawed for both hot and cold use. They are not affected by temperature and can be microwaved.