probably can be done, but ultrasound irradiation itself will warm up coffee a little. if all of it goes to heat, then it's extra 20C or so so you'll have to cool it down afterwards anyway

[–] tabris@lemmy.world 12 points 3 days ago (1 children)

They're talking about commercial scale coffee products and coffee flavoured products (bottled coffee drinks, instant coffee, etc.), where a reduction of 75% of the energy consumption could not only be very profitable, but also helpful in hitting environmental targets. Coffee is already a bit of an environmental nightmare when it comes to water usage in farming, so lessening the impact of commercial coffee is definitely a plus.

[–] rain_enjoyer@sopuli.xyz 2 points 3 days ago (1 children)

if all that energy is used to boil water and we're cutting that energy use by 3/4 then it's saving 70Wh (not kWh) per litre, or 70kWh per cubic meter. that's not much

[–] tabris@lemmy.world 4 points 2 days ago

When you're dealing with thousands of litres per hour, it's a fair amount.

[–] FauxPseudo@lemmy.world 7 points 3 days ago (1 children)

You can heat the water afterwards. A lot of the heat in the hot water is lost in the beans. This might never have an application at your local coffee shop, but for canned coffee it will make a dramatic difference in profitability.

[–] Onomatopoeia@lemmy.cafe -4 points 3 days ago* (last edited 3 days ago) (1 children)

A coffee shop is still going to have a regular espresso machine running all the time.

[–] FauxPseudo@lemmy.world 7 points 3 days ago

Did you use reading comprehension as a dump stat? You just used different words to say what I said.