How to keep milk warm and carry it?

1, use a thermos cup: the thermos cup can keep the water temperature for a long time, so it can be used to hold milk. After pouring the milk into the thermos cup, be sure to cover the lid tightly to prevent heat loss.

2, insulation bag: insulation bag is a kind of sealed bag with insulation performance, you can put food in it and keep warm. After pouring milk into the insulation bag, try to exclude air and seal the bag mouth, which can reduce heat loss.