How you can make cold-brew coffee in under 3 minutes using ultrasound

[Jan Panteltje]

How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

[John Larkin]

Post by Jan Panteltje
How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

I don't want a kitchen (or a house) full of goofy electronic gadgets
that will break constantly. My gas stove, steel kettle, plastic cone,
paper filters, and a can of Peets is long-term reliable, even if a
solar storm takes the power out.

I've just finished my first cup, so gotta go.

[Bill Sloman]

Post by John Larkin

Post by Jan Panteltje
How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

I don't want a kitchen (or a house) full of goofy electronic gadgets
that will break constantly. My gas stove, steel kettle, plastic cone,
paper filters, and a can of Peets is long-term reliable, even if a
solar storm takes the power out.
I've just finished my first cup, so gotta go.

New South Wales takes it's coffee seriously, and Star Bucks went bust in
Australia, though I think one store survived to keep American tourists
happy, though if they stay longer than few days they get converted to
proper coffee. When Covid-19 made it too dangerous to got out to our
local coffee dealer, I had to buy an Expobar domestic espresso machine
with a properly regulated heat exchanger (it wasn't cheap and came from
a specialist supplier), and my wife negotiated her preferred coffee
grind with Campos Coffee (which got going selling coffee to Sydney
University students and is now the most reliable dealer in Sydney). She
had to send a batch or two back before she reliably got what she wanted.

Jan Panteltje is reporting on the lunatic fringe of the local coffee
culture. Our local coffee dealer did offer cold-brew coffee to people
with that specialised taste, but they never seemed to sell much of it.

[Jeroen Belleman]

Post by John Larkin

Post by Jan Panteltje
How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

I don't want a kitchen (or a house) full of goofy electronic gadgets
that will break constantly. My gas stove, steel kettle, plastic cone,
paper filters, and a can of Peets is long-term reliable, even if a
solar storm takes the power out.
I've just finished my first cup, so gotta go.

Coffee should be black as the night, hot as hell, sweet as love,
and consumed instantly. No cold, 24-hour old brew for me, thank
you nicely. Italian style espresso is what I like best.

Jeroen Belleman

[John Larkin]

On Sat, 11 May 2024 19:35:02 +0200, Jeroen Belleman

Post by Jeroen Belleman

Post by John Larkin

Post by Jan Panteltje
How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

I don't want a kitchen (or a house) full of goofy electronic gadgets
that will break constantly. My gas stove, steel kettle, plastic cone,
paper filters, and a can of Peets is long-term reliable, even if a
solar storm takes the power out.
I've just finished my first cup, so gotta go.

Coffee should be black as the night, hot as hell, sweet as love,
and consumed instantly. No cold, 24-hour old brew for me, thank
you nicely. Italian style espresso is what I like best.
Jeroen Belleman

All correct except for adding some cream, and savoring two cups for a
while. "Instantly" is over way too soon.

We don't get tired of coffee. We don't get tired of things that are
addictive.

[Bill Sloman]

Post by John Larkin
On Sat, 11 May 2024 19:35:02 +0200, Jeroen Belleman

Post by Jeroen Belleman

Post by John Larkin

Post by Jan Panteltje
How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

I don't want a kitchen (or a house) full of goofy electronic gadgets
that will break constantly. My gas stove, steel kettle, plastic cone,
paper filters, and a can of Peets is long-term reliable, even if a
solar storm takes the power out.
I've just finished my first cup, so gotta go.

Coffee should be black as the night, hot as hell, sweet as love,
and consumed instantly. No cold, 24-hour old brew for me, thank
you nicely. Italian style espresso is what I like best.

Me too. "Hot as hell" is silly. It would burn your mouth. Sweet as love
is equally silly. Coffee is transient and love lasts (for a while at
least, and for a lifetime if you get lucky).

Post by John Larkin
All correct except for adding some cream, and savoring two cups for a
while. "Instantly" is over way too soon.

Yuck.

Post by John Larkin
We don't get tired of coffee. We don't get tired of things that are
addictive.

Coffee isn't addictive. Caffeine is, and I was addicted to it back when
I drank tea. Coffee is usually imbibed at less than the addictive dose
rate. We don't get tired of things that are never quite the same and
coffee beans are never entirely identical.

[Carlos E.R.]

Post by Jan Panteltje
How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

It is interesting. Anyone criticizing the method, should read the
article first, and then criticize with precision.

Me, I am curious and would like to taste it and do my own comparison.

[John Larkin]

On Sat, 11 May 2024 22:46:23 +0200, "Carlos E.R."

Post by Carlos E.R.

Post by Jan Panteltje
How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

It is interesting. Anyone criticizing the method, should read the
article first, and then criticize with precision.

I wonder if the tasting was double-blind.

Post by Carlos E.R.
Me, I am curious and would like to taste it and do my own comparison.

Yes, we can't judge the flavor from a written report.

We have an expresso machine and a coffee bean grinder, and someone
gave us a giant electric coffee pot thing; none are ever used. Too
much hassle, too much junk.

Some days I make two different kinds of coffee, Peets and CDM, and
some days even three, with dcaf for a regular guest. One kettle, three
pots, three filter cones, all working in parallel.

[Jan Panteltje]

On a sunny day (Sat, 11 May 2024 22:46:23 +0200) it happened "Carlos E.R."

Post by Carlos E.R.

Post by Jan Panteltje
How you can make cold-brew coffee in under 3 minutes using ultrasound
https://arstechnica.com/science/2024/05/how-you-can-make-cold-brew-coffee-in-under-3-minutes-using-ultrasound/

It is interesting. Anyone criticizing the method, should read the
article first, and then criticize with precision.
Me, I am curious and would like to taste it and do my own comparison.

Yep, it is cool, I have not been much into coffee the last year or so,
but I have a lot of high power ultrasonic stuff here,
was for ultraonic anti-fouling (cleaning ship outside from stuff growing on it)
No boat ATM, so it is sitting here for experiments:-)
Loading Image...
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Note the big transducers:
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It can automatically send a whole range of frequencies:
https://panteltje.nl/pub/ ultrasonic_anti_fouling_OLED_running_5120.avi

Wind your own transformers:
Loading Image...

So maybe when I regain that craving for coffee I will have a go :-)

So this was some electronics for a change...