Ultrasonic Espresso - A New Way to Brew Coffee | FRANCISCO TRUJILLO!
Can you make espresso with room-temperature water and sound waves?
Dr Francisco Trujillo and his team at UNSW have developed an entirely new brewing process that uses ultrasound to produce espresso-strength coffee in under three minutes, while using around one-quarter of the energy of a traditional espresso machine.
In this episode, Francisco takes us inside the science of ultrasonic coffee. We unpack acoustic cavitation, the microscopic bubbles that pit and fracture coffee grounds, why tamping matters far less in this system, and how the team built the technology into something that still…
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