Source: Slashdot: Hardware
Researchers have demonstrated that ultrasonic vibrations can extract espresso-strength coffee without relying on hot water. If commercialized, this cuts one of the kitchen's most energy-intensive rituals, which matters as connected appliances and smart home systems face pressure to hit measurable sustainability metrics. Sound waves destabilize coffee particle structures directly rather than relying on temperature to force extraction. The implication for connected devices: optimizing often means applying different physics to a problem, not just making existing methods more efficient.