Can a hot kettle heat milk?

You can't heat it with a hot kettle, and the milk will spill easily. You can heat it in an ordinary pot, but you can't cover it. You can't leave the milk when you heat it. It's easy to put out the gas when the milk overflows after boiling. Or add some hot water to the container, put the packaged milk in it, and heat it at the water temperature to keep its nutrients from losing.