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Making espresso with ultrasound

unsw.edu.au

71–80 of 94 posts

Re: Making espresso with ultrasound

#71
post #27

Earlier quoted context omitted.

...you discover frackuccino with cat processed beans: https://www.youtube.com/watch?v=rqw09I-BTvE

Civet coffee is the best! The production method not so much sadly :( Maybe they can create an artificial cat stomach?

Trung Nguyen did that:

https://www.vice.com/en/article/a-vietnamese-company-is-brin...

Seemingly as early as 2010:

https://en.wikipedia.org/wiki/Trung_Nguy%C3%AAn#Weasel_and_L...

Re: Making espresso with ultrasound

#72
post #42

> Both espresso samples were served at 22 °C to ensure a fair like-for-like comparison […] > It is noted that espresso is normally consumed hot and has transient sensory attributes that are temperature- and time-dependent. Hence, serving espresso at 22 °C will alter its sensory characteristics. This is a weird test, coffee get’s so much worse when cold. So people can’t distinguish between two bad coffees.

> coffee get’s so much worse when cold Coldbrew is a thing and done right it brings out a refreshing sweetness. Also iced coffee. Bad coffee is bad hot or cold.

"Cold brew" means that the coffee was brewed with "cold" water. Whether or not it is served cold is orthogonal -- iced coffee is usually brewed hot.

Re: Making espresso with ultrasound

#73
post #8

Awesome idea. I would love to try it. If that can also make my espresso routine easier I am up for it.

If you are looking for an easier routine, have you tried the OXO rapid brewer to make "soup"? It is as easy to operate as an Aeropress, and it makes a really yummy concentrated cup.

A typical recipe is something like 20g coffee and 80g water, yielding about 60g of concentrated coffee. Lance Hedrick has done a few videos on the subject.

It is not espresso, obviously, but it takes no time to prepare, it tastes fantastic and it is very easy to dial-in.

Re: Making espresso with ultrasound

#74
post #70
post #5

The crema looks like terrible, more like Nespresso, and having the coffee warm is kinda important. But perhaps this can be used in the instant coffee industry or something.

It's funny people associate crema with good tasting espresso given the crema is the worst tasting part of an espresso

Yup. I bet they haven't tried scooping the crema and tasting it by itself. Since doing that, I now scoop and throw away the crema every time.

Re: Making espresso with ultrasound

#75
post #70
post #5

The crema looks like terrible, more like Nespresso, and having the coffee warm is kinda important. But perhaps this can be used in the instant coffee industry or something.

It's funny people associate crema with good tasting espresso given the crema is the worst tasting part of an espresso

This is completely false if the espresso is brewed with freshly ground and properly roasted beans with correct temperature and pressure. The texture of the crema also says a lot about the quality of the extraction.

Re: Making espresso with ultrasound

#76
post #5

The crema looks like terrible, more like Nespresso, and having the coffee warm is kinda important. But perhaps this can be used in the instant coffee industry or something.

> having the coffee warm is kinda important. Cold drip coffee is a thing, done well a very nice thing.

Absolutely, and I enjoy a lot of cold brew, but it's not espresso.

Re: Making espresso with ultrasound

#77
post #70

Earlier quoted context omitted.

It's funny people associate crema with good tasting espresso given the crema is the worst tasting part of an espresso

Yup. I bet they haven't tried scooping the crema and tasting it by itself. Since doing that, I now scoop and throw away the crema every time.

I guess it's a matter of taste, and the quality of the coffee, but I love the crema. Personally I think removing it sounds a bit like picking the olives off the pizza.

Re: Making espresso with ultrasound

#79
post #67
post #61

Earlier quoted context omitted.

> coffee get’s so much worse when cold This is a myth. Bad coffee tastes better when hot because your sense of taste is dulled - reducing bitterness. Also, at higher temperatures, aromatics and volatile compounds are more airborne, improving the smell of coffee. Good coffee is better enjoyed around 60-70C

I don’t understand, you say it’s a myth and then said it’s better when warm? Regardless, I would say it’s an objective fact that good coffee is ruined at room temperature. It still tastes fine , but no where near as good. What especially irks me is that they could have just heated the stuff in a microwave [1] to 50°C and have a much better test. [1] https://youtu.be/yqgKlqAUM9g

[deleted]

Re: Making espresso with ultrasound

#80
post #55

Earlier quoted context omitted.

I grow my own beans and harvest rain water from my roof to use in my coffee ritual and ... am happy to let others do their own thing

I actually capture free hydrogen and oxygen and make my own water.

If you're not creating your own galaxy which can make free hydrogen, oxygen, and an environment to promote the evolution of a coffee plant over millions of years, you're consuming such an inferior product that you might as well drink instant coffee.
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