Scientists Invent a Way to Brew Espresso With Ultrasonic Waves—No Hot Water Required
Researchers at the University of New South Wales have developed an 'ultrasonic espresso' method that uses high-frequency sound waves instead of heat to extract coffee. This process is significantly more energy-efficient and could revolutionize industrial coffee production.
Why it matters
Reducing energy consumption in food processing offers a sustainable alternative for high-volume beverage production while maintaining flavor quality.
Photograph: Guido Mieth/Getty Images Comment Loader Save Story Save this story Comment Loader Save Story Save this story What do you need to make a good espresso ? Ground coffee, of course; a machine capable of generating pressure; and hot water, preferably heated to between 195 and 205 degrees Fahrenheit. And that’s it. But could one perhaps do without that last element? No, not the water itself, but the need to heat it.
The article focuses on technical innovation and environmental benefits without ideological bias.
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