Question

To prevent heat from passing through something.

Answer 1

o keep your drinks hot or cold, it minimizes heat transfer due to conduction and radiation. Convection is not included because convection keeps the temperature in a liquid even. You don't want to drinksomething that is hot on the first gulp and gets colder and colder until the last one.

Answer 2

heya here's your answer-

Use thermostatic bottles or cover the cup or bottle with some of aluminium foil paper it will keep it hot for a while longer.

hope it helps^_^