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

    From Jan Panteltje@21:1/5 to All on Sat May 11 06:19:26 2024
    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/

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  • From John Larkin@21:1/5 to All on Sat May 11 07:35:19 2024
    On Sat, 11 May 2024 06:19:26 GMT, Jan Panteltje <alien@comet.invalid>
    wrote:

    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.

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  • From Bill Sloman@21:1/5 to John Larkin on Sun May 12 01:17:08 2024
    On 12/05/2024 12:35 am, John Larkin wrote:
    On Sat, 11 May 2024 06:19:26 GMT, Jan Panteltje <alien@comet.invalid>
    wrote:

    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.

    --
    Bill Sloman, Sydney

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  • From Jeroen Belleman@21:1/5 to John Larkin on Sat May 11 19:35:02 2024
    On 5/11/24 16:35, John Larkin wrote:
    On Sat, 11 May 2024 06:19:26 GMT, Jan Panteltje <alien@comet.invalid>
    wrote:

    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

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  • From John Larkin@21:1/5 to jeroen@nospam.please on Sat May 11 10:55:24 2024
    On Sat, 11 May 2024 19:35:02 +0200, Jeroen Belleman
    <jeroen@nospam.please> wrote:

    On 5/11/24 16:35, John Larkin wrote:
    On Sat, 11 May 2024 06:19:26 GMT, Jan Panteltje <alien@comet.invalid>
    wrote:

    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.

    --- SoupGate-Win32 v1.05
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  • From Carlos E.R.@21:1/5 to Jan Panteltje on Sat May 11 22:46:23 2024
    On 2024-05-11 08:19, Jan Panteltje wrote:
    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.

    --
    Cheers, Carlos.

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  • From John Larkin@21:1/5 to robin_listas@es.invalid on Sat May 11 15:18:19 2024
    On Sat, 11 May 2024 22:46:23 +0200, "Carlos E.R."
    <robin_listas@es.invalid> wrote:

    On 2024-05-11 08:19, Jan Panteltje wrote:
    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.


    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.

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  • From Bill Sloman@21:1/5 to John Larkin on Sun May 12 14:13:36 2024
    On 12/05/2024 3:55 am, John Larkin wrote:
    On Sat, 11 May 2024 19:35:02 +0200, Jeroen Belleman
    <jeroen@nospam.please> wrote:

    On 5/11/24 16:35, John Larkin wrote:
    On Sat, 11 May 2024 06:19:26 GMT, Jan Panteltje <alien@comet.invalid>
    wrote:

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

    Yuck.

    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.

    --
    Bill Sloman, Sydney

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  • From Jan Panteltje@21:1/5 to robin_listas@es.invalid on Sun May 12 06:25:49 2024
    On a sunny day (Sat, 11 May 2024 22:46:23 +0200) it happened "Carlos E.R." <robin_listas@es.invalid> wrote in <v125hkxsmb.ln2@Telcontar.valinor>:

    On 2024-05-11 08:19, Jan Panteltje wrote:
    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:-)
    https://panteltje.nl/pub/ultrasonic_anti_fouling_circuit_diagram_IMG_5144.JPG
    https://panteltje.nl/pub/listening_to_ultrasonics_IMG_5145.JPG

    Note the big transducers:
    https://panteltje.nl/pub/40_KHz_ultrasonic_transducers_IMG_5133.JPG

    It can automatically send a whole range of frequencies:
    https://panteltje.nl/pub/ ultrasonic_anti_fouling_OLED_running_5120.avi

    Wind your own transformers:
    https://panteltje.nl/pub/ultrasonic_antifouling_bigger_transformer_IMG_5179.JPG

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

    So this was some electronics for a change...

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