Researchers at UNSW Sydney have harnessed the power of ultrasonic sound waves to make espresso-strength coffee with room temperature water, cutting energy use by up to 75%.
probably can be done, but ultrasound irradiation itself will warm up coffee a little. if all of it goes to heat, then it’s extra 20C or so so you’ll have to cool it down afterwards anyway
probably can be done, but ultrasound irradiation itself will warm up coffee a little. if all of it goes to heat, then it’s extra 20C or so so you’ll have to cool it down afterwards anyway