answer:Sometimes, as you said you can get more hot tepid water and reuse the tea bag for a delicious dishwasher beverage. Probably because that carafe is available and easy to pour. But it’s a good question. Tell your friend to throw a few tea bags into her purse and just ask for more warm water. Restaurant tea is always awful, however. I can’t remember the last time I got freshly brewed tea and boiling water, probably at Twenty One in NYC in the seventies.