Schallwellen verkürzen die Zubereitungszeit von Cold Brew-Kaffee von 24 Stunden auf 3 Minuten | Forscher haben eine Ultraschallmaschine entwickelt, um den Kaltaufguss gemahlener Kaffeebohnen zu beschleunigen.
https://newatlas.com/around-the-home/ultrasound-cold-brew-coffee-under-3-minutes/
7 Comments
TLDR (as best as I could): They vibrate the coffee grounds so much that they explode, basically shaking the contents of the coffee grounds out of them with *very* high frequency (38.8-kHz).
A more efficient drug delivery method.
But does it taste good or is it way over extracted?
Wonder if it will improve cold brew flavor. Strongly prefer regular brew which is then chilled as needed. Totally get that it takes a while, though those instant hot-to-iced coffee tumblers really do work.
One more way to make coffee… I have six…
How does that not heat it up?
this doesn’t even seem all that difficult to diy, though perhaps not as nice as a product might be.