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Cold brew coffee in 3 minutes using acoustic cavitation

unsw.edu.au

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Re: Cold brew coffee in 3 minutes using acoustic cavitation

#231

Post by ClumsyPilot »

taylorportman wrote: post #229
solardev wrote: post #225

Earlier quoted context omitted.

This is why I love my fully automated luxury mediocre espresso maker ( https://www.seattlecoffeegear.com/blogs/scg-blog/jura-a1-rev... ). I push a button, it grinds the coffee and does stuff inside that I can't see, then moments later I have a perfectly average cup of something resembling burnt bean soup. I don't know whether it's megasonically brewed or absolute-zero infused or just wet caffeine pills. Sometimes it'…

Your ambivalence contributes little to the conversation.

It represents the same position of mediocre acceptance that many espresso affectionadors will arrrive at after spending many months/years mucking about with expensive kit.

It’s the natural progression of most hobbies

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#232

Post by ClumsyPilot »

dmix wrote: post #156
WirelessGigabit wrote: post #130

Earlier quoted context omitted.

> I’m baffled that so many people who sell coffee for a living, think they know a lot about it, and act like coffee snobs, don’t seem to understand what cold brew even is. Anecdotally, this is something I've experienced in the USA more than in Europe. When I ask a question in store a lot of times I get the feeling that the person answering considers themselves an expert and quickly make claims that I know for a fact…

You're saying Europeans are less smug than Americans?

It’s more about behaving like a chatbot or pre-programmed robot.

If dealing with situation B is not in the manual, they will tell u situation B can’t happen, even if it happening right now.

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#233

Post by conchy »

As someone who makes cold brew every day, this is one of the two approaches I've considered to speed things up, the other being one of those magnetic stirrers they have in chemistry lab. However, after careful consideration, the real low-hanging-fruit here is the time it takes to grind the coffee, load it, fill the water, clean the filter, and rinse the jar. If a cold brew machine could automate these steps (like some hot coffee machines do) you wouldn't care about making a cup in 3 minutes because you'd always have an automatic jar ready for you from 24 hours ago.

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#234

Post by NegativeLatency »

hammock wrote: post #224
NegativeLatency wrote: post #208

Earlier quoted context omitted.

> or doing anything more than pressing it slowly I have a french press for camping, it's fine but when I want that first cup of coffee and it's cold and rainy outside you better believe I'm not pressing it slowly.

Three seconds faster? You must really like coffee

Hm maybe not that fast, whats considered fast?

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#235

Post by horacemorace »

panopticon wrote: post #218
thrixton wrote: post #198

Earlier quoted context omitted.

How did you go about roasting your own if you don’t mind me asking.

It was a journey! My wife got me a roaster for Christmas several years ago, and I had absolutely no idea how to use it. After tons of reading, YouTube, and trial-and-error I eventually got the hang of it. I still use the same roaster she bought me, but I upgraded to a double-walled chamber to make winter roasting more consistent and temperature probes [1] to record the roast process with Artisan [2]. Since collecting…

[dead]

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#236

Post by waldothedog »

thrixton wrote: post #198
panopticon wrote: post #137

Earlier quoted context omitted.

This is mainly what got me into roasting my own coffee. It was becoming a pain to find high quality dark roasts as all of the boutique roasters turned their efforts to light roasts.

How did you go about roasting your own if you don’t mind me asking.

I’d recommend getting a stove top popcorn popper and a range hood vent :)

Or if you’re like me and live in an apartment, get a window fan blowing out, and be prepared for your apartment to smell amazing/terrible (depending on your perspective) for a few days

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#237

Post by waldothedog »

LargoLasskhyfv wrote: post #115
kurthr wrote: post #66

Earlier quoted context omitted.

It's funny cuz Charbux has no problem pouring hot espresso into cold ice milk with caramel and cream on top. I think it's pretty clearly just "baristas" justifying not changing their process, which is fine if a bit lazy and argumentative. Many coffee people are totally interested in finding new ways to do stuff, but they have to have the mental space to do it.

Funny. Exactly that stuff is the only reason I've ever entered a Starbucks. Venti! But TBH one can do that with better coffee, caramel sirup, some crushed ice from the fridge, and even spray cream out of a can for much less money, just not 'on-demand' and anywhere/anytime. Also, too much (spray) cream and caramel in Venti amounts can't be that good for your body.

Why not trenta?

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#238

Post by solardev »

taylorportman wrote: post #229
solardev wrote: post #225

Earlier quoted context omitted.

This is why I love my fully automated luxury mediocre espresso maker ( https://www.seattlecoffeegear.com/blogs/scg-blog/jura-a1-rev... ). I push a button, it grinds the coffee and does stuff inside that I can't see, then moments later I have a perfectly average cup of something resembling burnt bean soup. I don't know whether it's megasonically brewed or absolute-zero infused or just wet caffeine pills. Sometimes it'…

Your ambivalence contributes little to the conversation.

Wait till you see my cookbook, "1-minute Meal Replacement Powders", the perfect complement to my self-help/self-sabotage title, "Better Living Through Lower Standards".

YOLO, and no one gets it right on the first try anyway...

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#239

Post by askvictor »

papertokyo wrote: post #221
askvictor wrote: post #196

Earlier quoted context omitted.

> heard an uktrasonicator Is this a joke?

No. These machines sound like robot hornets operating dental drills.

I thought ultra sonic was defined as being above the sonic range of humans. Genuine question: why would an ultrasonic noise generator create sound audible frequencies? Can it not provide enough power without doing so?

Re: Cold brew coffee in 3 minutes using acoustic cavitation

#240

Post by ChrisMarshallNY »

solardev wrote: post #225
dahart wrote: post #17

Recently I discovered that many coffee shops, maybe half in my sampling of a couple dozen in different cities, are selling cold coffee (brewed hot, then refrigerated) under the name cold brew, and even the ones that actually cold-brew them seem to be under the impression that it needs to be served cold. I was laughed at in one hipster joint for asking for a steamed or warmed cold-brew, and another one initially refus…

This is why I love my fully automated luxury mediocre espresso maker ( https://www.seattlecoffeegear.com/blogs/scg-blog/jura-a1-rev... ). I push a button, it grinds the coffee and does stuff inside that I can't see, then moments later I have a perfectly average cup of something resembling burnt bean soup. I don't know whether it's megasonically brewed or absolute-zero infused or just wet caffeine pills. Sometimes it'…

Friend of mine, with money, has a coffee machine, by a company I’d never heard of, called “Jura”[0].

I’d not heard of it, because it’s not for plebes, like me.

Grinds and brews a perfect cuppa in about a minute.

I used to have a toddy maker, where you dumped a whole pound of ground coffee into a bucket of water, let it sit overnight, in the fridge, then you drained through a filter.

The resulting thick liquid was like really good instant coffee. You threw a bit into a cup, added hot water, and it tasted great.

[0] https://us.jura.com/en

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