Butane Hash Oil (BHO) extraction is one of the most efficient methods of cannabis extraction. It is one of the preferable cannabis extraction methods for producing dabbable concentrated extracts. This article explores the intricacies of BHO extraction, its process, methods, and crucial safety guidelines. If you are an enthusiast planning to use the process, understanding what BHO is and how to make BHO is essential for navigating this complex extraction technique.
BHO is a solvent-based cannabis extraction method that uses butane to extract cannabinoids and terpenes from plant material. The term “BHO” stands for Butane Hash Oil, as the extract produced by this method is also known as hash oil.
The BHO extraction process involves passing liquid butane through the cannabis plant material to strip away the desirable compounds, resulting in a potent concentrate. Let’s understand this process in detail.
BHO Extraction Process: Step-by-Step Guide
1. Preparation: The first step of the process is to prepare cannabis plants for extraction. This step involves grinding the plant matter to increase surface area and packing the powdered material into an extraction tube. Proper preparation ensures maximum efficiency during the extraction process.
2. Extraction: This is the crucial phase of the BHO process in which liquid butane is forced through the packed cannabis material. Acting as a solvent, butane dissolves the cannabinoids and terpenes from the plant matter. For efficient extraction of desired compounds, the temperature of butane is maintained at -40°F (-40°C).
3. Filtration: After the initial cannabis extraction, the resulting mixture is filtered to remove plant particulates. This BHO extraction step is essential for producing a clean, high-quality extract. Proper filtration contributes significantly to the overall purity of the final product.
4. Purging: Butane is a toxic hydrocarbon, so purging any traces of the solvent from the extracts is mandatory. Purging involves removing residual butane from the extract using heat and vacuum pressure. This phase ensures that the final product is safe for consumption and free from harmful solvents.
5. Post-Processing: While optional, the final step of the extraction process can involve further refining the extract to achieve the desired consistency and potency. Additional purging techniques like winterization and distillation enhance the quality of the BHO concentrate.
What is Vacuum Purging BHO?
Vacuum purging is a cleansing technique in the BHO extraction process that involves placing the extract in a vacuum oven to remove residual butane under low pressure and controlled heat. As BHO is a volatile hydrocarbon, it can be harmful if ingested. The purging process ensures cleaner, safer, and high-quality BHO concentrates.
Comparing BHO Extraction to Other Methods
Extraction Method | Pros | Cons |
BHO Extraction | High efficiency process | Safety concerns due to high volatile butane |
CO₂ Extraction | Much safer extraction process Environmentally friendly | High initial cost due to special equipment |
Ethanol Extraction | Efficient for large-scale production | May extract unwanted compounds such as chlorophyll |
Solventless Methods (Rosin Press, Ice Water Hash) | Produces purest extracts | Lower yields |
How Do Cannabis Extractors Utilize BHO Extraction?
Cannabis extractions use BHO extraction for the commercial production of extracts. The BHO extraction method is easily scalable, making it appropriate for industrial and small-scale operations.
For large-scale production, extractors use closed-loop BHO extraction systems. These systems are highly efficient and much safer than open-loop methods. These systems keep the butane solvent within the equipment throughout the process, minimizing the risk of leaks or explosions. This not only improves the safety and quality of the process but also results in higher yields and the ability to recycle and reuse the solvent.
For smaller operations, open-loop systems might be more economical. Such systems do not contain the solvent and require frequent transfer of butane from one component to another for the process to complete. This makes open-loop BHO systems risky, with a higher potential for fire, explosions, and solvent contamination.
Due to the use of hydrocarbon solvent, the BHO extraction method makes it mandatory that licensed cannabis manufacturers adhere to strict regulations. Also, some jurisdictions ban open-loop systems due to safety concerns. Extractors should use sophisticated BHO extraction systems to ensure product safety and consistency.
The role of automation and advanced extraction equipment has revolutionized the BHO extraction method. Modern BHO extractors like Rootsciences’ hydrocarbon extraction equipment utilize precise temperature controls, automated purging systems, and sophisticated filtration techniques to produce high-quality concentrates. By leveraging technology, you can bring greater consistency, higher yields, and improved safety into the cannabis extraction process.
Find the right extraction equipment for your needs today!
Safety Guidelines for BHO Extraction
If you are implementing a BHO extraction process, then ensure to follow these safety guidelines:
- Ensure that your facility has proper ventilation to prevent butane vapor accumulation
- Install closed-loop systems to minimize exposure to solvents and improve the safety of workers
- Make wearing appropriate personal protective equipment (PPE) for staff mandatory at all times
- Regularly inspect and maintain all equipment to proactively find any issues that can result in accidents
- Ensure you follow the regulatory guidelines and standard practices for extraction activities
How to Consume BHO Concentrates
Depending on their preference, consumers can choose among several BHO concentrate consumption methods:
- Dabbing: Dabbing is a popular method for consuming BHO extract. This consumption method involves vaporizing the concentrate on a hot surface and inhaling the resulting vapor. BHO hash makes a highly potent dabbing product. Dabbing results in a rapid onset of effects, allowing users to appreciate the complete flavor profile.
- Vaping: Similar to dabbing, BHO concentrates can also be used for vaping. Vape pens and portable dab rigs are available that consumers can use to conveniently and discreetly consume BHO hash. Vaping allows for precise dosing and temperature control, enhancing the overall experience.
- Edibles: BHO cannabis products can be easily incorporated into various edible products. While the effect is not as fast as vaping or dabbing, edibles provide a longer-lasting effect. Also, for consumers who don’t prefer to inhale their cannabis, edibles offer a safer alternative. However, careful dosing is crucial due to the high potency of BHO concentrates.
How to Store BHO for Maximum Potency
1. Use Airtight Containers
As terpenes and cannabinoids are volatile, storing BHO butane extracts in airtight, non-stick silicone or glass containers is essential to prevent degradation. Airtight contains preserved terpenes and maintains the concentrate’s potency and flavor profile over time.
2. Keep Away from Heat and Light
BHO extracts contain terpenes that are sensitive to light and heat. Storing them in a calm and dark place is essential, as UV light and high temperatures can degrade cannabinoids and terpenes. This will reduce the extract’s potency and alter its effects.
3. Use Parchment Paper for Short-Term Storage
You don’t need airtight containers if you store small-quality for the short term. Parchment paper is also effective for short-term storage as it prevents the concentrate from sticking and is easily portable.
4. Refrigerate for Longer Shelf Life
For long-term storage, you can refrigerate BHO concentrates. This will slow down the degradation process and help preserve the extract’s chemical composition, ensuring a longer shelf life.
5. Avoid Humidity and Moisture Exposure
The ultimate goal of all the above storage methods is to keep BHO concentrates away from moisture. Humidity and moisture can lead to mold growth and degradation of the product. If you live in a humid environment, use moisture-absorbing packets to store BHO extracts.
Conclusion
BHO extraction is a commercially successful test method. As an extractor, you should explore how to make BHO, and this guide provides a step-by-step extraction process. We also compared it to other methods and discussed essential safety guidelines.
Root Sciences offers advanced BHO extraction systems. Whether you’re considering making BHO on a small-scale or industrial scale, our systems prioritize safety, quality, and legal compliance. Also, always adhere to local laws and regulations and ensure proper equipment and training for the protection of the whole process.
