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Entirely new way of making espresso unveiled
(www.unsw.edu.au)
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this post was submitted on 16 Jun 2026
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Yeah basically, but at a much higher frequency since it's ultrasound. Human hearing tops out at 20khz, and this would be close to 50khz
I found one for sale that does 40k that has the same form factor as the one shown in the paper. I almost want to make a high-speed coldbrew system but I don't expect it'd be worthwhile for the coffee, only maybe for the fun of building it.
Lol worst case you can convert it to an ultrasonic parts cleaner
Not quite. Worst case scenario is I make a torture machine for any dog, cat, and maybe other non-human animal in the area.