Ethanol extraction is one of the most versatile methods for separating oils, aromatic compounds, flavors and other desirable constituents from botanical material. But extracting those compounds is only part of the process. To create a concentrated botanical extract efficiently, the ethanol must also be separated and, whenever possible, recovered for reuse.
That combination of botanical extraction + filtration + ethanol recovery is what makes modern ethanol extraction systems so useful for everyone from home botanical crafters to small-batch producers.
In this guide, we'll explain how ethanol extraction works, the difference between warm and cold ethanol extraction, why solvent recovery matters, and how Extract Craft's Source Turbo and EtOH Pro simplify the process.
What Is Ethanol Extraction?
Ethanol extraction is a botanical extraction method that uses ethyl alcohol as a solvent to dissolve and separate selected compounds from plant material. After extraction, the botanical material is filtered away and the ethanol is separated from the liquid extract through evaporation and recovery. The result is a more concentrated botanical extract, while properly recovered ethanol may potentially be reused.
How Does Ethanol Extraction Work?
Plant oils cannot always be separated efficiently by simply pressing or squeezing botanical material. Instead, solvent extraction uses a liquid capable of dissolving selected compounds within the plant.
In ethanol extraction, that solvent is ethyl alcohol, or ethanol.
When botanical material comes into contact with ethanol, soluble plant compounds migrate into the alcohol. Depending on the botanical, temperature, contact time and other processing conditions, ethanol may extract oils, aromatic compounds, pigments and other soluble constituents.
The botanical material is then separated from the liquid, and the resulting tincture is filtered before entering the final and often overlooked stage of the process:
Ethanol Recovery.
Instead of intentionally allowing valuable ethanol to evaporate into the surrounding environment, specialized ethanol recovery equipment can separate the solvent from the botanical extract using controlled evaporation and condensation.
For a deeper look at solvent selection and safe handling, read our complete guide to food-grade ethanol and botanical extraction safety.
The Botanical Ethanol Extraction Process: Step by Step
Although individual recipes and botanicals vary, the basic ethanol extraction process generally follows five stages.
1. Prepare the Botanical Material
Botanical material is prepared according to the extraction method and characteristics of the plant being processed.
2. Extract With Ethanol
The botanical material is brought into contact with high-proof ethanol. The ethanol acts as a solvent, dissolving selected compounds from the plant material and creating an ethanol-based botanical solution often referred to as a tincture or wash.
3. Separate & Filter
The bulk botanical material is separated from the liquid. The resulting tincture can then be filtered more thoroughly to remove suspended plant particles before solvent recovery.
4. Recover the Ethanol
A dedicated ethanol recovery system uses controlled evaporation and condensation to separate ethanol from the filtered botanical tincture.
5. Collect the Botanical Concentrate
As ethanol is removed, the botanical compounds remaining in the processing vessel become increasingly concentrated. The finished concentrate can then be collected and prepared for its intended application.
Why Is Ethanol Used for Botanical Extraction?
Ethanol has become an established botanical extraction solvent because it combines useful solvent properties with widespread availability and the ability to be recovered after processing.
Benefits of Ethanol Extraction
- Versatile solvent: Ethanol can dissolve a broad range of botanical constituents.
- Food-grade options are available: High-purity, non-denatured ethanol can be used for appropriate food-processing and botanical applications.
- Recoverable: Proper equipment can separate and collect ethanol for potential reuse.
- Scalable: Ethanol extraction can be adapted to both small-batch and higher-volume workflows.
- Compatible with low-temperature processing: Vacuum-assisted systems can lower the temperature required to separate ethanol from an extract.
- Efficient workflow: Extraction, filtration and solvent recovery can be incorporated into a repeatable botanical processing system.
What Is Ethanol Recovery — and Why Does It Matter?
One of the biggest differences between a basic ethanol extraction setup and a dedicated botanical extraction machine is what happens to the ethanol after extraction.
Simply allowing ethanol to evaporate means losing solvent with every batch.
An ethanol recovery system instead captures ethanol during processing so it can potentially be reused when appropriate.
Recovering ethanol can reduce solvent waste, lower the amount of replacement ethanol required and create a more controlled processing workflow than intentionally evaporating large quantities of solvent into the surrounding environment.
For anyone performing botanical extraction regularly, solvent recovery can be just as important as the extraction itself.
Learn more in our Food-Grade Ethanol Extraction Equipment & Solvent Recovery Guide.
Cold Ethanol Extraction vs. Warm Ethanol Extraction
Temperature can significantly affect what ethanol removes from botanical material.
Cold Ethanol Extraction
Cold ethanol extraction lowers the temperature of the ethanol, botanical material or both before and during extraction.
Lower temperatures can reduce the extraction of certain unwanted compounds such as some waxes, lipids and pigments. This can make downstream filtration and refinement easier for applications where a cleaner extract is desired.
Warm Ethanol Extraction
Warmer extraction conditions can increase the rate at which ethanol dissolves botanical constituents, but they may also increase the extraction of compounds that later need to be removed.
Depending on the botanical and intended product, additional processing such as winterization and filtration may therefore be useful.
| Factor | Cold Ethanol Extraction | Warm Ethanol Extraction |
|---|---|---|
| Temperature | Lower | Higher |
| Extraction Speed | Often slower | Often faster |
| Co-extracted Compounds | Can reduce extraction of some waxes, lipids and pigments | May extract a broader range of compounds |
| Post-Processing | May reduce some downstream refinement | May require additional winterization or filtration depending on the application |
Neither method is automatically the right choice for every botanical. Temperature, solvent ratio, contact time and filtration should be selected according to the plant material and the desired finished extract.
What Type of Ethanol Is Used for Botanical Extraction?
Not every type of ethanol is appropriate for botanical processing.
For applications where the resulting extract may be used in food, culinary, cosmetic or other consumer products, the purity and composition of the ethanol are especially important.
Extract Craft's published equipment guidance specifies high-proof, non-denatured ethanol for its ethanol extraction systems.
Denatured ethanol contains intentionally added substances and should not be substituted for appropriate food-grade ethanol in applications intended for consumption.
Before choosing a solvent, read: Is Ethanol Safe for Botanical Extraction? A Complete Guide to Food-Grade Ethanol.
Botanical Ethanol Extraction Equipment
The right ethanol extraction equipment depends largely on how much material you plan to process and how frequently you'll be extracting.
Extract Craft offers two primary ethanol extraction and recovery systems for different production levels.
Source Turbo: Small-Batch Botanical Extraction
The Source Turbo is designed for home crafters and small-batch botanical extraction. Its compact countertop footprint combines vacuum-assisted, low-temperature processing with ethanol recovery in a single system.
Source Turbo is well suited for:
- Home botanical extraction
- Small-batch tinctures and concentrates
- Culinary and aromatic extracts
- Botanical hobbyists and craft producers
- Users who want a compact ethanol recovery system
EtOH Pro: Higher-Capacity Ethanol Extraction
For larger batches, the EtOH Pro increases processing capacity while maintaining the same fundamental goal: low-temperature botanical extraction with efficient ethanol recovery.
The EtOH Pro has a 4-liter processing capacity and is designed for more serious hobbyists, advanced users and small botanical businesses that require greater throughput.
EtOH Pro is well suited for:
- Larger botanical extraction batches
- Higher-volume ethanol recovery
- Advanced home extractors
- Small botanical businesses
- Users moving beyond countertop-scale processing
Source Turbo vs. EtOH Pro: Which Ethanol Extraction Machine Is Right for You?
| Feature | Source Turbo | EtOH Pro |
|---|---|---|
| Best For | Home & small-batch extraction | Larger batches & advanced users |
| Footprint | Compact countertop system | Higher-capacity system |
| Processing Capacity | Small to medium batches | Up to 4 liters of processing liquid |
| Ideal User | Home crafter / hobbyist | Advanced user / small business |
Compare Extract Craft Extraction Machines →
Frequently Asked Questions About Ethanol Extraction
Is ethanol good for botanical extraction?
Ethanol is an established botanical extraction solvent because it can dissolve a broad range of plant compounds, high-purity food-grade options are available, and the solvent can be separated and recovered using appropriate equipment.
What is ethanol recovery?
Ethanol recovery is the process of separating ethanol from a botanical tincture through controlled evaporation and condensation and collecting the solvent rather than intentionally releasing it into the surrounding environment.
Can ethanol be reused after botanical extraction?
Ethanol collected by appropriate solvent recovery equipment may potentially be reused. Recovered solvent should be evaluated for purity and suitability for the intended application before reuse.
Does filtration remove ethanol?
No. Filtration removes solid botanical material and suspended particles. Ethanol remains dissolved in the liquid and requires a separate evaporation or solvent-recovery process.
What is the difference between ethanol extraction and infusion?
Ethanol extraction uses alcohol as a solvent to remove compounds from botanical material and is followed by solvent separation. An infusion typically uses oil, butter or another carrier that remains part of the finished preparation.
What equipment is needed for ethanol extraction?
A complete workflow may include extraction containers, filtration equipment, filter papers, a Buchner funnel, filtration flask and an ethanol recovery machine such as the Source Turbo or EtOH Pro. The exact equipment depends on batch size and the botanical being processed.
Start Your Botanical Extraction Journey
Successful botanical extraction isn't simply about removing compounds from plant material. A complete workflow considers solvent selection, extraction temperature, filtration, ethanol recovery and final concentrate collection.
Whether you're experimenting with botanical extraction at home or moving toward larger batches, Extract Craft's extraction systems are designed to make low-temperature ethanol extraction and solvent recovery more accessible and controlled.
Better Extraction. Smarter Recovery.
Explore Extract Craft's botanical extraction machines, filtration equipment and ethanol recovery systems.
Shop Extraction Machines Learn About Source TurboSafety Note: Ethanol is highly flammable. Use only appropriate ethanol for your intended application and follow the operating instructions, ventilation requirements, safety precautions and applicable regulations for your equipment and location.