‘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.
Well, usually the heat is being used to actually chemically change the food. Coffee beans are pre-roasted and you’re just using hot water to get the coffee into the liquid. It’s not like this technique could be used to cook meat or vegetables. Liquefy them, possibly.
Well, usually the heat is being used to actually chemically change the food. Coffee beans are pre-roasted and you’re just using hot water to get the coffee into the liquid. It’s not like this technique could be used to cook meat or vegetables. Liquefy them, possibly.
Was thinking microwave or reheating things evenly from within, particularly liquids like soup.
It’s not actually leaving the coffee hot, though.
Optimal drinking temperature is only about 125 though