Somewhere in Australia, a group of researchers looked at a perfectly normal espresso machine and thought: “What if we yelled at the coffee, but scientifically?”
Good news: it worked.
A 2026 study in the Journal of Food Engineering found that espresso-strength coffee can be brewed at low temperature in just 2–3 minutes using ultrasonic sound waves. Instead of relying on super-hot water and pressure, the system sends high-intensity ultrasound into a coffee basket, creating tiny bubbles that form and collapse in the water. This process, called acoustic cavitation, helps pull flavor, oils, and caffeine from the grounds.
In less science-y terms: sound shakes the coffee until the good stuff comes out.
As audio people, we are obviously delighted.
Because this study proves something we wish every brand understood:
Sound is not background.
Sound does things.
Sound Gets the Good Stuff Out
In the study, water alone could not hit espresso-level extraction at low temperature. Add ultrasound, and suddenly the coffee had richness, strength, and concentration.
That is exactly what great brand audio does.
A brand may already have all the ingredients: a good product, a strong message, a visual identity, a story, a vibe. But without the right sound, some of the emotional flavor stays trapped in the grounds.
Creative audio helps extract it.
A sonic logo can pull out recognition.
A voice can pull out trust.
Music can pull out momentum.
A podcast intro can pull out familiarity.
Basically, audio is the tiny invisible barista inside your brand saying, “I got this.”
Resonance Beats Noise
The researchers did not just blast random sound at coffee and hope for the best. They designed the system so the coffee basket itself became a resonant ultrasonic reactor.
Very nerdy. Very useful.
Because the best brand audio works the same way. It does not sit on top of a brand like a stock track dropped in at 11:47 p.m. It resonates through the whole thing.
When audio is tuned well, people do not just hear it. They recognize it. They feel it before they can explain it.
Noise says, “Please notice me.”
Resonance says, “You already know me.”
Tuning Matters
The coffee team tuned grind size, brew ratio, ultrasound power, and extraction time. Tiny changes mattered.
Brand audio is no different.
“Make it more upbeat” is not a strategy.
“Can it be premium but approachable but disruptive but not too disruptive?” is not a strategy.
“Do we have anything that sounds like Apple, but legally not Apple?” is definitely not a strategy.
Good audio is tuned to the job.
Who is listening?
Where are they hearing it?
What should they feel in the first two seconds?
Should the brand whisper, wink, strut, hug, sparkle, or politely kick the door open?
That is the work.
A Little Sound Goes a Long Way
The ultrasonic system reportedly used about 75% less energy than a conventional espresso machine to reach matched beverage strength. That is a big deal for coffee.
It is also a useful reminder for branding: audio is incredibly efficient.
A few seconds of sound can carry a lot. A sonic logo, a startup chime, a podcast theme, a product notification — these sounds can create massive recognition.
Audio travels where visuals cannot. It works when people are driving, cooking, scrolling, walking, or even just half-listening.
A good sound system is not just a nice-to-have.
It is brand infrastructure with a catchy bassline.
The Takeaway
The reason this coffee study is exciting is not just that sound can help make espresso, although yes, that is deeply fun.
The bigger lesson is that sound can be functional. It can transform a system. It can unlock something that would otherwise take more heat, more pressure, more time, or more effort.
That is what creative audio can do for brands.
It can make a message land faster.
It can make identity more memorable.
It can make a product feel more intuitive.
It can make a brand recognizable before the logo even shows up.
So the next time someone treats audio like the garnish, remember the ultrasonic espresso.
Sound is not the foam art.
Sound is the thing shaking loose the magic.
Source sip: Inspired by the 2026 Journal of Food Engineering study “Ultrasound Enables Espresso-Strength Coffee Brewing in 2–3 Minutes at Low Temperature with Lower Energy Consumption.”
