Before going out, put away the food to be taken out, such as porridge, soup, baby food supplement, rice, vegetables, hot drinks, etc. Put it in a stewing beaker. After a few hours, open the cup and you can eat delicious food. Convenient, fast and healthy, no need to heat.
Of course, you can also bring iced drinks when you go out for a picnic in summer, which is cold and delicious. For mothers or professionals who often take their babies out to eat, the heat preservation function of stews is still very practical.