Vacuum extraction · WAVE Brew
WAVE Brew – Coffee. Water.
Vacuum.
WAVE Brew connects your freeze dryer to a new way of extracting. Add coffee and water, lower the pressure – and the liquid boils at room temperature.
From €3,900
WAVE Brew · Freeze dryer and accessories sold separately
Room temperature
Boiling under vacuum
Up to 2 kW
Integrated heating power
Up to 20% TDS
Achievable coffee concentration
The system in action
See the system. Understand the process.
Explore Brew, the FD 440, WaveDry35 and the CO₂ connection in 3D. Rotate the system, inspect the connections or follow the full extraction cycle.
Fill, pull a vacuum and collect the coffee. Rotate the system and explore each step.
A 48-second time-lapse. The cutaway reveals the process; hose routing and CO₂ pressure equalisation are shown schematically.
From coffee to extract
Three steps. One closed process.
- 01
Fill
Open Brew, add ground coffee to the filter basket and pour in water. Close the lid using the six screw clamps.
- 02
Extract under vacuum
The pump lowers the pressure through the FD 440. The liquid starts boiling at room temperature while the freeze dryer’s cold trap collects the water vapour.
- 03
Collect the extract
Isolate the vacuum lines and equalise the pressure. Open the bottom outlet and collect the coffee in the receiving vessel.
Low pressure. Controlled extraction.
Under vacuum, the boiling point of water drops. The liquid starts moving at room temperature. Since evaporation also cools it, the integrated heater offsets this heat loss to keep the extraction running.
Water vapour travels through the stainless-steel line to the freeze dryer, where it is captured by the cold trap.
How the components work together
More from your freeze dryer.
Brew adds vacuum extraction to a WAVE system. In this example, four components each play a specific role.
WAVE Brew
Extraction happens here. A stainless-steel vessel, filter basket, transparent lid and bottom outlet form the process unit.
FD 440
The cold trap collects the water vapour. Vacuum lines from Brew and the pump connect at the back of the machine.
Explore the FD 440WaveDry35
The vacuum pump evacuates the connected system. Flexible stainless-steel lines and separate isolation valves connect the equipment.
WAVE vacuum pumpsCO₂ connection
The second KF25 port on Brew connects to the CO₂ supply. The animation shows pressure equalisation before dispensing.
One system. Many recipes.
Think beyond coffee.
Coffee
Concentrates for drinks, recipe development and subsequent freeze drying into instant coffee.
Tea & botanicals
Extracts from tea, herbs and plant ingredients for new products and experimental batches.
Fruits & berries
Liquid fruit extracts as a starting point for concentrates or freeze-dried ingredients.
Brew in detail.
We match the configuration to your recipe, freeze dryer and intended process.
Enquire about Brew- Construction
- Stainless steel vessel + 6-clamp pressure lid
- Pressure Rating
- Vacuum and overpressure rated
- Heating Power
- Up to 2 000 W (configurable)
- Achievable TDS
- Up to 20 % on coffee
- Filter
- Removable filter basket / filter bag
- Outlet
- Bottom dispense valve for liquid extract
- Connection
- Direct flange connection to WAVE freeze dryer chamber
- Compatible Machines
- FD260, FD440, FD440 MAX, FD470, IC550, IC570 and larger
- Connections in the illustrated system
- 2 × KF25 on Brew: vacuum to FD 440 and CO₂ connection
TDS is the proportion of total dissolved solids. Results depend on the raw material, water ratio and process settings.
Every perspective.
Good to know.
Why does coffee boil at room temperature?
The boiling point depends on pressure. Lowering the pressure sufficiently allows water to boil at room temperature. WAVE Brew uses this effect for extraction.
What does the freeze dryer do?
Its cold trap collects the water vapour from Brew. The vacuum pump creates the low pressure in the connected system. This example uses an FD 440 and a WaveDry35.
Why does Brew need a heater?
Evaporation removes heat from the liquid. The integrated heater, with up to 2 kW of power, offsets this cooling so extraction can continue.
Does the Brew price include the complete system?
The starting price covers WAVE Brew. The freeze dryer, vacuum pump, CO₂ equipment and required connections are specified separately in a quote for your setup.
Can I freeze-dry the extract afterwards?
Yes. The collected extract can then be processed in the freeze dryer, for example into instant coffee or botanical extract powders.
What would you like to extract?
Tell us about your ingredients and your freeze dryer. We’ll put together the right Brew setup for you.