This is fascinating from a food technology standpoint.
But the framing of the article around espresso specifically is somewhat bizarre. Most people want their shot of espresso to be piping hot, not room temperature. And most iced coffee is very intentionally not made with espresso (although you certainly can use it if you want).
The text of the article seems to suggest that this is more intended for "making ready-to-drink coffee products at industrial scale". But then that is not single-serve espresso shots that the article shows in several images.
So is this about room-temperature espresso shots (not what most people want) or about industrial-scale concentrated coffee? And if it's the latter, what would those machines look like? It's one thing to use ultrasound at a small scale; but what about in gigantic basins? Does that work, or are there challenges? Is this tech that scales?
You may be thinking of cold brew, which is usually more expensive due to the higher coffee-to-water ratio. A standard ‘iced coffee’ at most coffee shops is espresso-based
A standard iced coffee is just regular brewed coffee that is then put in the fridge. (Which is different from cold brew which is brewed in the fridge.)
But the framing of the article around espresso specifically is somewhat bizarre. Most people want their shot of espresso to be piping hot, not room temperature. And most iced coffee is very intentionally not made with espresso (although you certainly can use it if you want).
The text of the article seems to suggest that this is more intended for "making ready-to-drink coffee products at industrial scale". But then that is not single-serve espresso shots that the article shows in several images.
So is this about room-temperature espresso shots (not what most people want) or about industrial-scale concentrated coffee? And if it's the latter, what would those machines look like? It's one thing to use ultrasound at a small scale; but what about in gigantic basins? Does that work, or are there challenges? Is this tech that scales?