5L Fully Automated Compound Remediation System
A bench-scale system that refines a finished botanical extract, selectively removing unwanted constituents at room temperature while preserving the aromatics and actives.
COMERG • Botanical extraction
Peppermint
Mentha piperita L.
Turn peppermint into a premium essential oil, tincture or full-spectrum extract with COMERG equipment. Our cold, room-temperature, low-pressure process pulls a dark-green, intensely aromatic oil from the herb while keeping the full menthol-rich character of the plant intact, the result you see in the profile below.
Technical reply in 48h
Free yield review
Worldwide shipping
≥70% volatile oil • 21% menthol
The plant
A cool, sharp signature
Peppermint is a hardy aromatic hybrid mint of the Lamiaceae family, prized for the bright menthol note carried in its essential oil. It is one of the most widely used flavour and fragrance botanicals in the world, at home in everything from oral care to fine perfumery.
Worked from dried, ground aerial parts, it gives up its oil readily to a gentle, low-temperature process, which is exactly what protects that fresh, cooling character. Nothing is added, and the natural compound balance of the herb is preserved.
Raw material
Botanical nameMentha piperita L.
FamilyLamiaceae
Plant partStems / aerial parts
ConditionDried, ground
OriginBulgaria
AvailabilityAll year
The extract
What the process delivers
Run on COMERG equipment, peppermint yields a standardised, high-purity oil, batch after batch. Because the extraction is cold and solvent-light, with no high heat, the true aromatic profile of the herb carries straight through to the finished extract. The figures below are typical of a standardised BMin-70.1 grade.
≥70%Volatile oil v/w
31%Menthone
21%Menthol
<25 °CExtraction temp
97%Compound recovery
~300 kgHerb per kg extract
The method
Cold extraction, in three steps
No heat, no leftover solvent. This is what happens inside a COMERG aerosol system, and why the oil keeps its full character.
1
Pressurised R134a flooding
Non-toxic liquefied R134a gas is introduced to the dried herb at controlled, low pressure. There is no heat, the cycle begins and stays at room temperature.
2
Selective aromatic dissolution
The liquid gas gently dissolves menthol, menthone, menthyl acetate and the other volatile compounds, while the heat-sensitive aromatics stay structurally intact.
3
Recovery and pure extract
The R134a is fully recovered and recycled in a closed loop. What is left is a concentrated peppermint extract at 70-75% volatile oil, with under 0.1 g/kg residue.
Aromatic profile
The compound fingerprint
Principal constituents identified by GC-MS, each above 1%. Menthone and menthol lead the profile and give the extract its fresh, cooling character.
0%10%20%30%+
Waxes and other extractables max. 30%. Per-batch GC-MS report available on request.
Specification
BMin-70.1 at a glance
Identity & origin
Botanical nameMentha piperita L.
Plant partStems / aerial parts
OriginBulgaria
Product codeBMin-70.1
CAS No.84082-70-2
EINECS No.282-015-4
Production
MethodLiquefied-gas extraction
TemperatureBelow 25 °C
SolventFood-grade (Dir. 97/60/EC)
Solvent residue< 0.1 g/kg
StandardisationDeclared volatile oil
Concentration1 kg ≈ 280-320 kg herb
Physical
AppearanceDark-green oily liquid
Volatile oil≥ 70% v/w (ASTA 70-75%)
Density @20 °C935 g/l
Refractive index1.4766
Acid value17.1 mg KOH/g
Flash point> 61 °C
Solubility & output
In oilsFully soluble
In 40% alcoholPartial
In waterInsoluble
FormsEssential oil, tincture, extract
Typical pack2.50 l / 6.25 l
Shelf life2 years
Measured properties
Tested, not assumed
Antioxidant activity
DPPH free-radical method
IC500.331 mg/ml
Maximal inhibition91.8%
At concentration1.2 mg/ml
Antimicrobial activity
MIC / MBC, % w/v
S. aureus / S. epidermidis0.2 / 0.2
E. coli0.4 / 0.4
C. albicans0.4 / 0.4
S. abony0.4 / 0.8
P. aeruginosa0.8 / >1.0
Applications
What you can make
Food & flavour
Confectionery
Beverages
Oral care
Perfumery
Cosmetics & personal care
Aromatherapy blends
The extract can be taken concentrated or diluted in a carrier oil to suit the application. As a guide, a concentrated peppermint extract is typically dosed at 1-20 mg per kg of finished food product.
Why the COMERG line
Built for botanicals like peppermint
The profile and purity above are not an accident of the plant alone, they are what the right equipment makes repeatable. Our line is engineered around the things that matter when you process an aromatic herb.
Room temperatureR134a aerosol extraction works cold and at low pressure, so delicate menthol and the fresh top notes are not cooked off.
Fully automatedClosed-loop systems run the cycle for you, so results stay consistent and one operator can handle the line.
Fast cycles, high yieldLow-pressure extraction is quick and recovers up to 97% of the plant's compounds, more than older high-pressure CO2 lines from the same biomass.
Natural integrityThe process keeps the plant's full spectrum intact, with no solvent left behind and none of the character stripped out.
Scales with youFrom a 10 l bench unit to 2000 l production, the same method grows from R&D batches to full volume.
Clean and economicalIt uses around 85% less energy than solvent methods and needs no special hazardous-location facility, so your oil cost is essentially the herb.
Why it wins
Compared to the alternatives
Against steam, solvent and CO2, cold R134a extraction keeps more of the plant and runs cleaner and cooler.
| Feature | COMERG R134a | Steam distillation | Solvent | CO₂ supercritical |
|---|---|---|---|---|
| Process temperature | < 25 °C (room temp) | 100-150 °C | 40-70 °C | 31-80 °C |
| Aromatic preservation | 95%+ | 60-75% | ~85% | ~80% |
| Compound recovery | up to 97% | 70-85% | 80-90% | 85-92% |
| Solvent residue | < 0.1 g/kg | None | Needs post-purge | None |
| Energy use | 85% less vs solvent | High | Medium-high | Very high |
| Special facility | Not required | Not required | Required | High-pressure safety |
| Automation | Fully automated | Manual | Semi-automated | Semi-automated |
From field to extract
The machines for peppermint
A complete COMERG line takes peppermint from field to finished oil. These are the core stages, each available as standalone equipment.
Aerosol extraction
The heart of the line. Liquefied-gas systems that pull the oil cold, below 25 °C, from 10 l bench units up to 2000 l.
Room temp • high yieldView system
Botanical harvester
Brings the crop in fast, cutting flowering tops and stalks in one pass at up to 2 hectares per hour.
Field stageView machine
Conveyor dryer
Dries the harvested herb gently and evenly at an adjustable 0-90 °C, ready for extraction.
Prep stageView system
Stick & seed separation
Sorts the dried biomass into clean flower, stalk and seed fractions, so only the good material is extracted.
Prep stageView system
Product specificationFull composition, properties, packaging and handling for peppermint extract BMin-70.1.
Download PDF
Questions
Peppermint extraction, explained
A 100% natural peppermint extract, the basis for essential oil, tincture or full-spectrum extract. A standardised grade (BMin-70.1) reaches at least 70% volatile oil with the full menthol-rich character of the herb, with no additives.
Liquefied food-grade gas extraction at room temperature, below 25 °C, and low pressure. Because there is no high heat, the delicate aromatic compounds are preserved and solvent residue stays below 0.1 g/kg.
Low-pressure aerosol extraction runs cold, fast and fully automated, recovers up to 97% of the plant's compounds, uses about 85% less energy than solvent methods, and needs no special hazardous-location facility.
Roughly 1 kg of extract represents 280 to 320 kg of dried raw material, so a little goes a long way in a formulation.
Yes. The same method runs from a 10 l bench unit to 2000 l production systems, so you can start small and grow without changing process.
It is produced with a food-grade solvent per Directive 97/60/EC. It is a raw material for formulation, not intended for direct consumption or undiluted topical use, and users are responsible for compliance with applicable legislation.
Yes. A per-batch GC-MS analysis is available on request, and a Safety Data Sheet per 2006/1907/EC is supplied with the product.
Set up your peppermint line
Tell us your throughput and target product. We will recommend the right equipment, share a specification and reply with pricing and lead time, usually within 48 hours.
COMERG extracts are raw materials for product formulation. They are not intended for direct consumption or for undiluted topical application in cosmetics, perfumery or aromatherapy. This information is provided to the best of our knowledge and is not a substitute for prior testing of suitability for the intended use. Keep away from children.
The peppermint line
Equipment for processing peppermint
The machines below make up the peppermint line, the equipment that takes the herb through to an essential oil, tincture or extract. Request a quote on any unit and we will reply with pricing and lead time.
testing
Showing 17–26 of 26 results
-
-
6″ SS Wiped Film Distillation System
A stainless-steel short-path wiped film system that distills and purifies heat-sensitive botanical fractions in seconds under deep vacuum, with no thermal damage.
-
Automated Vape Cartridge Filling Machine
A compact automated filler for viscous botanical oils, with a heated mixer, jacketed feed and temperature-controlled nozzle for clean, bubble-free 0.3-3 mL doses.
-
Dual-Cut Botanical Harvester
A tractor-towed harvester that cuts flowering tops and stalks in a single pass, feeding a self-unloading 5 m³ bunker at up to 2 hectares per hour.
-
EtOH Fully Automated Ethanol Extraction System
A scalable 20-1000L ethanol platform that washes botanicals with chilled food-grade ethanol and recovers the solvent in a closed loop for clean, full-spectrum extracts.
-
Gas Chromatography Analysis System
A compact benchtop GC-FID analyser with a built-in hydrogen generator and dual columns for fast, low-cost potency, aroma-profile and residual-solvent testing.
-
Mold & Yeast Remediation System
A low-pressure decontamination system that removes mold, yeast and microbial load from botanical material and extracts at room temperature, with no heat or irradiation.
-
SHW 120L Subcritical Hot Water Extraction System
A solvent-free 120L production system that extracts polar, water-soluble compounds with pressurised hot water, delivering both a concentrated extract and an aromatic water.
-
SHW 60L Subcritical Hot Water Extraction System
A solvent-free 60L system that extracts polar, water-soluble compounds with pressurised hot water, yielding both a concentrated extract and a fragrant aromatic water.
-
Stick & Seed Separation System
A sifting and air-separation line that sorts dried botanical biomass into three clean fractions – flower and leaf, stalk, and seed – ready for extraction or sale.