Ultrasonic espresso’ made with cold water and high-frequency sound waves uses less energy than the traditional version – and taste tests show it’s just as good.

Add Yahoo as a preferred source to see more of our stories on Google. Scientists brew espresso using room-temperature water and sound waves. Researchers at UNSW Sydney have created a new way to make ...

A high-tech method for producing cold brew coffee that uses ultrasonic waves to extract flavour could cut the time required from 24 hours to just a few minutes. Cold brew coffee, which is made by ...

Researchers have demonstrated they can make coffee comparable to conventional espresso using ultrasonic waves. Because the process doesn’t need hot water, it consumes 75 percent less energy.

Researchers at UNSW Sydney have figured out how to brew espresso-strength coffee without heating any water. The method replaces hot water and high pressure with ultrasonic sound waves, and in blind ...

Lead researcher Francisco Trujillo from UNSW’s School of Chemical Engineering and his team have developed what they call an ‘ultrasonic espresso’. (UNSW Sydney pic) For coffee lovers, espresso has ...

Ultrasonic espresso brewed at room temperature matched traditional shots in blind taste tests while cutting energy use by 75%.