I discovered that besides frothing milk for normal lattes, you can also make all kinds of frothy treats like chai lattes and matcha lattes - amazing! (beloved-kitchen.com)
A whisk froths the milk in the carafe as it heats, and the coffee brews into it. (geekwrapped.com)
Single - cup coffee brewers now start at about $ 50 but can cost as much as $ 800 for models that make barista - worthy espresso drinks with frothed milk and shut themselves off. (reuters.com)