Energy Efficiency

1 article

A high-tech coffee machine using ultrasonic waves and room-temperature water to brew espresso, showcasing energy-efficient coffee technology.

UNSW Sydney Uses Ultrasonic Waves for Energy Efficient Espresso

In blind taste tests, 100 regular coffee drinkers could not differentiate between a traditional espresso and a version brewed with room-temperature water.

Raffi Hovsepian·June 13, 2026