Developed by engineers and food scientists at UNSW Sydney, this new method is called "ultrasonic espresso" and replaces heat with mechanical energy. It runs at room temperature,...

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…

Developed by engineers and food scientists at UNSW Sydney, this new method is called "ultrasonic espresso" and replaces heat with mechanical energy. It runs at room temperature,...