What is R134a aerosol extraction?

It is COMERG's core method: liquefied R134a gas dissolves the aromatic compounds of a plant at room temperature and low pressure, then is fully recovered, leaving a clean extract that keeps the aroma, colour and character of the raw material.

Why extract cold and at low pressure?

Running at room temperature with no air exposure preserves heat-sensitive aromatics and avoids oxidation. The cycle works at just 2 to 9 bar, so there is no high-pressure vessel and no fire hazard, and no special hazardous-location facility is required.

Is there any solvent left in the extract?

No meaningful amount. The R134a is recovered and recycled in a closed loop, leaving under 0.1 g per kg of residue, clean enough to use directly in food, drinks and cosmetics.

Can it run fresh and dried material?

Yes. The process is universal and works with dry or fresh raw material, and it recovers up to 97% of the plant's extractable compounds.

What scale do the systems cover?

The same method runs from a 10 litre pilot unit to 2000 litre production systems, so you can start small and scale output without changing the process.

R134A Extractors

Q: How do I get a quote?

Tell COMERG your material and target throughput. They will size the system, share a yield estimate and reply with pricing and lead time, usually within 48 hours, from Phoenix, Arizona.

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COMERG • Equipment

Aerosol R134a Extractors

Cold, low-pressure botanical extraction

Our core technology. Liquefied R134a gas extracts at room temperature and low pressure, so the extract keeps the full aroma, colour and character of the plant, with no heat, no oxidation and no solvent residue.

Request a quote Browse the systems

Phoenix, Arizona Reply within 48h Worldwide shipping

R134a aerosol • Phoenix, AZ

< 25 °CRoom temperature

Up to 97%Compound recovery

2 - 9 barLow pressure

< 0.1 g/kgSolvent residue

The technology

Why R134a is the core method

Cold and clean R134a works at room temperature with no air exposure, so heat-sensitive aromatics are preserved and there is no oxidation during the run.

Low pressure, fire-safe The cycle runs at just 2 to 9 bar with a low-pressure recovery system, no high-pressure vessel and no fire hazard, so no special hazardous-location facility is required.

No residue The R134a is fully recovered and recycled in a closed loop, leaving under 0.1 g/kg residue, clean enough to use directly in food, drinks and cosmetics.

From the field

What operators tell us

We put the R134a extract next to our steam-distilled oil and the aroma is just closer to the fresh plant. That comparison is what sold us.
NKN. Kostov
Founder, fragrance house

Low pressure meant we did not need a rated room, which changed the whole budget. George's team laid that out honestly before we ordered.
PDP. Daskalov
Operations, extracts

It runs cold, recovers the gas, and the extract comes out clean. Two seasons in with no surprises and the support is there when we call.
JFJ. Fischer
Production Manager

The range

Aerosol systems, pilot to production

10 L pilot 20 - 200 L commercial 500 - 2000 L industrial

The aerosol systems are listed below

Add R134a extraction to your operation

Room temperature No residue Fire-safe low pressure 10 L to 2000 L

Tell us your material and your throughput. We will size the system, share a yield estimate, and reply with pricing and lead time, usually within 48 hours.

Request a quote Talk to an engineer

COMERG designs and manufactures liquefied-gas botanical extraction equipment in Phoenix, Arizona. System specifications vary by configuration and intended use. This page is for information; contact us for a detailed quote and guidance for your site.

Showing all 10 results

1000L HTE Fully Automated Aerosol Extraction System

An industrial-scale aerosol extraction system for very high-volume, room-temperature, residue-free processing of any botanical.
100L HTE Fully Automated Aerosol Extraction System

A commercial-scale low-pressure aerosol system that gently extracts essential oils and aromatics from any botanical at room temperature, with no residue.
10L HTE Fully Automated Aerosol Extraction System

An entry-level, fully automated low-pressure aerosol system that gently extracts essential oils and aromatics from virtually any botanical at room temperature, with no residue.
2000L HTE Fully Automated Aerosol Extraction System

Our largest aerosol extraction platform, built for maximum-volume industrial production with the same gentle, residue-free low-pressure process.
200L HTE Fully Automated Aerosol Extraction System

A high-capacity commercial low-pressure aerosol system for room-temperature, residue-free extraction of essential oils and aromatics from any botanical.
20L Aerosol Extraction System

A compact production-scale low-pressure aerosol system that gently extracts essential oils and aromatics from any botanical at room temperature, with no residue.
20L MAX HTE Fully Automated Aerosol Extraction System

A dual-vessel 20L MAX system that doubles throughput while keeping the same gentle, room-temperature, residue-free aerosol extraction for any botanical.
30L Ultrasonic Extraction System

A 30L ultrasonic-assisted extraction system that uses 20 kHz cavitation to rupture plant cells and release oils into solvent quickly, at low temperature, with vacuum filtration.
500L HTE Fully Automated Aerosol Extraction System

A large-scale industrial aerosol system delivering high-volume, room-temperature, residue-free botanical extraction at low pressure.
50L HTE Fully Automated Aerosol Extraction System

A floor-standing production-scale low-pressure aerosol system that gently extracts essential oils and aromatics from any botanical at room temperature, with no residue.