The Science of Coffee cover image

5) Latte Foam

The Science of Coffee

00:00

How Does Steaming Milk Create a Microphone?

A small amount of original air brings in a lot. The energy from that steam wand must break up any big bubbles into small bubbles. This is why steaming your milk this way creates a microphone. After those first few seconds where you've incorporated a lot of air, you then stop incorporating as much air and you swirl it very aggressively.

Transcript
Play full episode

The AI-powered Podcast Player

Save insights by tapping your headphones, chat with episodes, discover the best highlights - and more!
App store bannerPlay store banner
Get the app