Too slow
Traditional cold brew can take 12 to 24 hours.
Cold brew, accelerated by ultrasound
Extracted in minutes,
not hours.
Nebura uses ultrasonic extraction to reinvent cold brew — preserving the ritual, removing the wait.
Specialty cold brewUltrasonic extractionBuilt for a faster coffee culture
01 — The problem
Cold brew is beautiful.
Waiting 24 hours is not.
Cold brew has become one of the most loved coffee rituals, but the process is slow, hard to control and inefficient for both home users and coffee businesses.
Hard to scale
Coffee shops need planning, storage and batch preparation.
Limited control
Time, temperature, grind size and agitation are difficult to tune consistently.
Preserve the ritual. Remove the wait.
02 — Technology
Ultrasound meets
specialty coffee.
Nebura accelerates extraction using controlled ultrasonic energy, creating microscopic cavitation effects that help release coffee compounds faster in cold water.
Inside Nebura, ultrasonic waves travel through water and coffee grounds. These waves generate microscopic bubbles that collapse rapidly, improving mass transfer and helping extract flavor compounds without relying on heat.
Specialty coffee meets controlled cavitation.
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Ultrasonic energy
High-frequency vibrations are transmitted into the brewing chamber.
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Controlled cavitation
Microscopic bubbles help disrupt the boundary layer around coffee particles.
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Faster extraction
Cold brew extraction is accelerated while keeping the process cold.
03 — Product
A new machine
for cold extraction.
Nebura is being designed as a countertop machine for fast, controlled cold brew preparation.
Prototype stage — under development
Concept render — the design shown is an early prototype direction, not the final product.
Fast cold brew
Designed to reduce extraction time from hours to minutes.
Cold process
No need to heat the water to speed up extraction.
Recirculation system
Continuous flow helps create a more homogeneous extraction.
Compact design
Built for countertops, coffee bars and small professional spaces.
Controlled parameters
Future versions may allow control of time, ultrasonic power, temperature and flow.
Specialty coffee focused
Designed for experimentation with grind size, ratios and recipes.
The future of cold extraction.
04 — For coffee shops
Built for coffee professionals.
For cafés, restaurants and hotels, cold brew is not only a drink — it is inventory, storage, planning and consistency. Nebura is designed to make cold brew more flexible.
Faster service
Prepare fresh cold brew without relying only on overnight batches.
Recipe experimentation
Test new origins, ratios and profiles faster.
Less waste
Produce smaller batches when needed.
Operational flexibility
Reduce dependence on large refrigerated storage.
We are looking for specialty coffee professionals to test early prototypes.
Request a demo05 — Culture
For the people
changing coffee culture.
Nebura is for people who love the ritual of coffee, but believe technology can open new ways to experience it. Faster recipes. New textures. New service models. New moments for cold coffee.
Home explorers
For curious coffee lovers experimenting with new brewing methods.
Specialty cafés
For baristas who want more control and faster iteration.
Modern hospitality
For spaces where speed, quality and experience matter.
Built for curious coffee people.
06 — Comparison
Traditional cold brew
vs Nebura
A faster way to explore cold coffee.
| Attribute | Traditional cold brew | Nebura ultrasonic extraction |
|---|---|---|
| Extraction time | 12–24 hours | Designed for minutes |
| Process | Passive immersion | Ultrasonic-assisted extraction + recirculation |
| Flexibility | Requires planning ahead | More responsive preparation |
| Experimentation | Slow recipe iteration | Faster testing of variables |
| Temperature | Cold | Cold process |
Final performance depends on coffee origin, grind size, recipe, water, temperature and prototype configuration.
07 — Early access
Be part of the first
Nebura brews.
We are building our first prototypes and looking for coffee lovers, baristas and specialty cafés to join the journey.
Designed for cafés, creators and cold brew lovers.