Revolutionary Ultrasonic Technique Brews Cold Coffee in Minutes

Australian scientists have developed a method using ultrasonic waves to drastically reduce the brewing time of cold brew coffee, offering a new quick alternative for coffee enthusiasts.

The new brewing method can produce cold brew coffee in just 1 to 3 minutes, compared to the traditional 24 hours.
Ultrasonic waves are used to agitate coffee grounds, speeding up the extraction process without heat.
Initial tests show that ultrasonically brewed coffee has a similar quality to traditionally brewed cold coffee in terms of flavor and texture.
The technique was developed at the University of New South Wales and involves modifying existing espresso machines.
Despite the high initial cost, ongoing refinements have significantly reduced the expense, making it more accessible for commercial use.