First add a spoon of grounds or beans. Fill up your cup with water. Next is the fun part. Shake it for 20 thousand years at a few Hz or scream at your coffee as loud as possible for a few months.
See also boozehounds turning everclear into gin or whiskey overnight. Ultrasonic baths are going to be A Thing for consumer gizmos, in the near future, and then probably taper off.
Just in time for that energy to be funnelled into a data center!
The ultrasound creates a phenomenon called acoustic cavitation, which is a rapid formation and collapse of microscopic bubbles in the liquid. When these tiny bubbles collapse near the coffee particles, they act like microscopic scrubbing brushes or jets of liquid, pitting and fracturing the coffee grounds and accelerating the bewing process.
That is such a cool use of an observed phenomenon.
Just what we needed, merging of the espresso nerd and audiophile demographics.
Fascinating. They can make room-temperature coffee in far less time than cold-brew. Could be really great for places that sell a lot of iced coffee.
A few months ago I saw a video of someone who used an ultrasonic cleaner to make extracts, so i tried it. I did 30 - 60 mins for each of orange peel, banana peel, pepper corn, anise, vanilla bean, cinnamon, and coffee. The coffee smelled absolutely disgusting, but this was like an hour rather than 3 mins. I had no idea how much time was appropriate. I also used vodka instead of water. Idk why I thought the coffee would work. The rest seem roughly what I'd expect. I've done traditional extracts previously. It makes sense to try water for coffee. I feel dumb for not trying that obvious combination.
They better have used The Hottest 100....
Ah yes the most important thing to save energy on: the 1500 watt appliance that's on for 15 minutes daily.
I wonder how well it would work for tea
They recently started doing this with whisky first and i thats when i wanted to go down the path of trying it on all of types of liquids but never had the time or money to do it.
The essence of convection "without" heat?
This sounds like a great way to torture your family pet. They can hear ultrasound, and the brew time for this is 2 1/2 to 3 minutes.
Saving up to 75% of energy by not heating the water is a minor benefit for home users or small coffee shops. But for companies making ready-to-drink coffee products at industrial scale, it could be very significant indeed.
So this is a method to make crap in a bottle or can.
Gotcha.
I'll stick with the trusty French Press
Edit: ...Though I gotta admit it's pretty dang cool that they figured out a new way to brew coffee using cold water and reduce the energy use of large scale production.
Industrial-scale coffee brewing can use counter-flow heat exchangers to recover pretty much all the heat energy, combined with insulation to prevent losses.
The spaceage of espresso machines. Heat generation is expensive in space, when the opportunity cost is the atmo circulation. This could be the answer to a problem we haven't yet run into as a species. I dig it.
They've brewed something (very slowly) that compares well to room temperature espresso? That's dandy and all, but I wonder how it compares to a proper espresso, after spending additional energy to heat it.
Is that something we really need to worry about?
More importantly, was the coffee better?
Open source it. Don't leave it behind a patent. They'll come after you if you try.
Just as good is subjective, the question is, is there a noticeable difference? If there is, that difference could mean everything to serious coffee snobs.
I am officially tired of seeing this article. I've blocked half a dozen people/bots reposting it. Doesn't help. Perfectly innocent morons are reposting it too.
Saving up to 75% of energy by not heating the water is a minor benefit for home users or small coffee shops. But for companies making ready-to-drink coffee products at industrial scale, it could be very significant indeed.
I guess if you like iced coffee it is a win for that also :)
Looks legit, especially for cold brews.
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