techl8

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

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

Researchers developed an ultrasonic espresso process that uses high-frequency sound waves instead of hot water to produce espresso-strength coffee at room temperature. And, not only did coffee drinkers find it comparable to traditional espresso, but the brewing process cut…

Source: Slashdot · Opens in new tab