‘Ultrasonic espresso’ made with cold water and high-frequency sound waves uses less energy than the traditional version – and taste tests show it’s just as good.
They’ve brewed something (very slowly) that compares well to room temperature espresso? That’s dandy and all, but I wonder how it compares to a proper espresso, after spending additional energy to heat it.
They’ve brewed something (very slowly) that compares well to room temperature espresso? That’s dandy and all, but I wonder how it compares to a proper espresso, after spending additional energy to heat it.