I see the value for American-style "espresso-flavored" drinks, or similar bottled/packaged products. But, yuck, who on earth wants to drink actual espresso at room temperature?
Yeah not for me. I like my coffee hot. Scalding hot. McDonald's was great until they had that lawsuit.
I used sound waves to make espresso
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Re: I used sound waves to make espresso
#32Don't show this to the EU, or they will force us drink only ultrasound espresso from now on.
Re: I used sound waves to make espresso
#33As I glance at my (checks notes) $200 power bill in San Diego apartment used entirely to run 3 ceiling fans and a box fan, I’m getting curious about all the ways power consumption can be reduced. No AC, LED lights, all gas appliances. I am going to switch over to a bunch of DC tower fans which claim to cut energy usage substantially. I wish more appliances would just switch to DC motors.
If you turn off all of your AC consuming devices is your meter still registering usage?
Re: I used sound waves to make espresso
#34Re: I used sound waves to make espresso
#35However, I'm going through the research paper, and am a bit skeptical of the energy savings angle, especially considering the many variables with espresso machine in terms of how they heat and brew (single vs dual boilers, heat exchangers vs dippers, spring lever machines vs pump driven). I'm weary of how they are doing a baseline comparison here, especially because the paper states that the comparison was done between a modified Ascaso machine (with the ultrasound gizmo) vs an entirely different machine (Sanremo Cube); and also that they swapped the Ascaso machine's original brew pump and put in a seemingly expensive, but more efficient "positive displacement magnetic gear pump". They still use the pump to drive about 11 bar of pressure during brewing with it run on some sort of interval schedule throughout the 3 minute cycle. They did factor out the initial heat up times which I guess makes sense.
However, another thing (on top of the obvious "room temperature espresso" problem) is that you'd still need steam / heat to produce milk based drinks (relevant for both home and especially cafes). Depending on the machine (including the Sanremo Cube they tested with) some of the "idle energy" usage is to support on demand steam generation. This doesn't seem to have been factored into their energy model which is pretty sketchy.
Re: I used sound waves to make espresso
#36Re: I used sound waves to make espresso
#37Is power consumption really the issue. Or just more consistent flavor?
For home use I'm much more interested in being able to add it to cold drinks and desserts.
Re: I used sound waves to make espresso
#38- The taste is apparently the same "There were no significant differences in aroma, flavour, bitterness or overall liking."
- That ultrasonic horn looks a lot smaller than both a modern espresso machine or a hand-cranked model like a Flair/Rok.
Re: I used sound waves to make espresso
#39At a 3 minute shot, I’d rather use the same time to do a pour over
Re: I used sound waves to make espresso
#40Very 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…
I felt a great disturbance in Italy, as if millions of voices suddenly cried out in terror and were suddenly silenced.
Espresso does not have milk.
Macchiato, is an espresso based drink with milk.
Edit: it's bad form to change your message after-the-fact to remove the thing that was quoted.