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I used sound waves to make espresso. It could cut coffee-brewing energy use by 75% (opens in new tab)

Covered by 4 sources including ScienceAlert, WIREDDiscussed on Hacker News

Covered in 4 articles

Scientists Made Espresso Without Hot Water, And People Couldn't Tell

Scientists Invent a Way to Brew Espresso With Ultrasonic Waves—No Hot Water Required

Scientists Brewed Espresso at Room Temperature Using Ultrasound and Saved 75% of the Energy. The Coffee Tastes The Same

developers.slashdot.org·

Using Sound Waves To Make Espresso Could Cut Coffee-Brewing Energy Use By 75%