Researchers at the University of New South Wales have developed a groundbreaking method that dramatically reduces the time required to make cold brew coffee from 24 hours to just three minutes. Using ultrasonic technology, Dr. Francisco Trujillo and his team have engineered an ultrasonic reactor that integrates with standard coffee machines. This reactor utilizes sound waves to enhance extraction, doubling the yield and caffeine content compared to traditional methods. The new technology not only promises to meet consumer demand for quick and efficient cold brew but also offers potential applications in commercial settings, allowing coffee shops to easily produce fresh, high-quality cold brew without the need for extensive equipment or storage space. Sensory analysis confirmed the ultrasonically brewed coffee matches the quality of traditionally steeped cold brew.
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