Revolutionizing Cold Brew - 3-Minute Coffee Using Ultrasound

Revolutionizing Cold Brew - 3-Minute Coffee Using Ultrasound

Engineers from the University of New South Wales have innovated the cold brew coffee process using ultrasonic technology. Traditionally, cold brew coffee takes 12 to 24 hours, involving steeping ground coffee in room-temperature water. This method, known for producing a less bitter coffee, is loved for its smooth and rich flavor profile. However, it’s notably time-consuming. The new technique uses an ultrasonically modified espresso machine to reduce brewing time dramatically to under three minutes. Ultrasonic pulses are applied to the coffee-water mixture, speeding up the extraction process without heating, thus preserving the distinct cold brew characteristics. This breakthrough could make cold brew more accessible, maintaining its unique taste and lower acidity, but with a fraction of the preparation time.

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