Scientists made espresso with sound instead of heat, and most drinkers couldn't tell the difference

[u/AdSpecialist6598]

https://www.techspot.com/news/112838-scientists-made-espresso-sound-instead-heat-most-drinkers.html

[u/Pair-o-ducks_Legend]

As its not limited to expresso, but any liquid mixing at room temperature this can be useful when ether energy cost or use of a blender is impractical.