Coffee ExtractionCoffee Brewing MethodsEspressoCold BrewDrip CoffeeMoka PortCoffee Machine Coffee Brewing NotionTampingWDT Engineers use ultrasonic reactor to make cold brew coffee in under 3 minutesEngineers use ultrasonic reactor to make cold brew coffee in under 3 minutesUNSW engineers have developed an ultrasonic reactor that can brew cold coffee in under 3 minutes using sound waves.https://boingboing.net/2024/05/07/engineers-use-ultrasonic-reactor-to-make-cold-brew-coffee-in-under-3-minutes.html
