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I used sound waves to make espresso

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Re: I used sound waves to make espresso

#141

Post by djtango »

moozilla wrote: post #108
hdndjsbbs wrote: post #43

Earlier quoted context omitted.

"room temperature espresso" was the first thing I thought of - espresso is meant to be drunk hot, right away. If you let a good shot cool off and compare it to a bad shot you're not going to notice the difference as much because you made them both worse by letting them sit and cool. For industrial processes it probably doesn't matter - look at how nescafe is manufactured.

This is only true for poor quality coffee. The hot temperature masks defects (bitterness). Good coffee tastes better as it cools. https://www.baristamagazine.com/the-temperature-paradox-why-...

I find this is definitely true for americano and pour overs but I don't drink enough espresso to know if this also true? I at least feel the sentiment that you want to drink an espresso fairly quickly although I do enjoy savouring it and also drink water in between to re-experience it on the palette

Re: I used sound waves to make espresso

#142

Post by mminer237 »

crazygringo wrote: post #131

This is fascinating from a food technology standpoint. But the framing of the article around espresso specifically is somewhat bizarre. Most people want their shot of espresso to be piping hot, not room temperature. And most iced coffee is very intentionally not made with espresso (although you certainly can use it if you want). The text of the article seems to suggest that this is more intended for "making ready-to-…

Iced espresso drinks are the large majority of what people buy at, e.g., Starbucks.

Re: I used sound waves to make espresso

#143

Post by 8note »

gerdesj wrote: post #93
__alexs wrote: post #86

Earlier quoted context omitted.

The majority of people that drink espresso drink it with milk.

Have you lost your mind 8) Espresso is so named because you "express" the brew from the beans and you do that with water because water is pretty neutral in flavour, is not poisonous and has quite a few other properties that we have evolved to exploit or live with. Milk is a weird liquid associated with mammals nursing infants. We humans have evolved to be somewhat lactose tolerant post infancy which is rare in animal…

a latte?

as in, a glass of just milk?

Re: I used sound waves to make espresso

#144

Post by maplethorpe »

jhbadger wrote: post #112
maplethorpe wrote: post #94

Earlier quoted context omitted.

Really? The Last time I was in an American office, there didn't seem to be any milk around. They had an unrefrigerated bottle of "creamer" next to the coffee machine, but I was too scared to try it. I'm still not sure what it is, or how I'm supposed to use it.

Office coffee is not what people drink for pleasure -- it's a caffeine delivery device. If you go to a coffeehouse in the US you'll find that people often order drinks called Lattes which is espresso and steamed milk. And the word is Italian like espresso itself, so I think this isn't some weird Americanism but pretty traditional.

I did go to an American coffee house while I was there. It was called something like "Phil's" and there were no lattes to be had.

Re: I used sound waves to make espresso

#145

Post by maplethorpe »

HWR_14 wrote: post #114
maplethorpe wrote: post #94

Earlier quoted context omitted.

Really? The Last time I was in an American office, there didn't seem to be any milk around. They had an unrefrigerated bottle of "creamer" next to the coffee machine, but I was too scared to try it. I'm still not sure what it is, or how I'm supposed to use it.

Creamer is a liquid made with oil and sweetener that approximates the taste and mouthfeel of milk and sugar. Or really a flavored syrup, not sugar. They often have hazelnut or vanilla flavoring added. You would use it by pouring it in your coffee, at about a 1:1 ratio with how you would use milk. I'm surprised you associated it with espresso. Creamer and drip coffee machines go together. Milk and espresso machines go…

It was a "Keurig", and I had to put a pod in it and wait a few seconds. Is that not espresso?

I make espresso at home by grinding/tamping it myself so I admittedly don't know much about the pod version or whether that still counts as espresso.

Re: I used sound waves to make espresso

#146

Post by tasercake »

PoorlyNamed wrote: post #136
stevage wrote: post #132

Earlier quoted context omitted.

> And most iced coffee is very intentionally not made with espresso Really? How is it made?

By soaking regular ground coffee in water for 12 hours or so.

You may be thinking of cold brew, which is usually more expensive due to the higher coffee-to-water ratio. A standard ‘iced coffee’ at most coffee shops is espresso-based

Re: I used sound waves to make espresso

#147

Post by TheDong »

asdff wrote: post #130
embedding-shape wrote: post #120

Earlier quoted context omitted.

I guess that might explain why they had it at such a low temperature (way to low I'd say), as they wanted to make a point about the lower energy consumption? If you wanted it hotter, then it might not actually save energy at all potentially?

Probably best suited for cold drinks where the heat is just purely wasted against the ice and diluting the drink.

The heat isn't wasted, it has a significant impact on flavor.

Extraction of flavor etc from coffee grounds changes based on the water temperature. You can easily experiment with this by taking some coffee grounds and trying to brew with various temperatures, and noticing what flavors you get out.

There's a reason cold-brew needs hours and hours to extract a good coffee flavor while regular espresso or pourover is done in a matter of minutes.

Re: I used sound waves to make espresso

#148

Post by pezezin »

drawnwren wrote: post #88
__alexs wrote: post #86

Earlier quoted context omitted.

The majority of people that drink espresso drink it with milk.

The majority of Americans that drink espresso drink it with milk.

Not only Americans. In my home country of Spain espresso with milk is pretty much the default coffee at bars ("café con leche").

Re: I used sound waves to make espresso

#149

Post by mandeepj »

cyberax wrote: post #103
mandeepj wrote: post #72

Earlier quoted context omitted.

Maybe there can be an ultra-sonic laundry machine

There are! And you can buy them for a couple bucks. The biggest downside: rinsing. You have to do it manually. And no, just refreshing the water and letting the ultrasonic emitter run will do nothing. And doing it manually takes a surprising amount of time.

Thanks! I googled after posting my comment here. No viable path with ultrasonic washers.

Re: I used sound waves to make espresso

#150

Post by brian-m »

alfiedotwtf wrote: post #117
brian-m wrote: post #29

Very interesting for industrial use, that’s for sure. For domestic use, in the home of somebody whose coffee snobbery is dialled to 11, I need far more information. What beans were they using, freshness, etc? (Edit: Campos coffee… not on my shopping list that’s for sure…) How did they control for extraction method differences to maximise output quality for all brew methods? (Edit: TDS and EY) Were the “regular” coffe…

> Campos coffee… not on my shopping list that’s for sure I’m from Melbourne, have a Brewtus IV + Mazza Mini, probably have a low user ID on coffeesnobs, hung out every day our Prouds and Patricia’s, and can tell from first sip if the beans are South American, African, or from Sumatra, so you can probably tell I’m anal about my coffee… and all I can say is don’t knock Campos (especially their King Street).

It has probably been 10-15 years since I've had anything from Campos. Wasn't a fan. Will give it another shot if I get caught in Sydney again.
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