Lena Savoie
Decarboxylation, or decarbing, is a chemical reaction that removes a carboxyl group from a molecule. In the context of cannabis, decarbing is a critical step in activating the psychoactive properties of cannabinoids such as THC and CBD. When making alcohol-extracted concentrates, there are varying opinions on whether to decarb before or after the ethanol extraction. Some sources suggest decarbing before ethanol extraction to remove as much water from the biomass as possible, while others recommend decarbing after most of the ethanol has evaporated. It is also possible to let the alcohol evaporate, collect the result, and then decarb the concentrate. Additionally, some people choose to decarb the plant material before infusing it into oil or butter for cooking or baking. Ultimately, the decision of when to decarb depends on the specific process and desired outcome.
| Characteristics | Values |
|---|---|
| Temperature for decarboxylation | Between 200 - 290°F (104 - 118°C) |
| Time for decarboxylation | Between 7 - 60 minutes |
| Decarboxylation before alcohol extraction | Recommended by some sources |
| Decarboxylation after alcohol extraction | Suggested by some sources |
| Purpose of decarboxylation | Activating the psychoactive properties of cannabinoids like THC and CBD |
| Decarboxylation process | Removal of a carboxyl group (COOH) from a molecule |
| Decarboxylation without heat | Possible with alcohol bath |
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What You'll Learn
- Decarbing before alcohol extraction is recommended to remove water from the biomass
- Decarbing after alcohol extraction is possible, but may be a fire hazard
- Decarbing in oil form is possible after evaporation
- Decarbing in a sealed jar with ethanol is possible, but takes 3-4 months
- Decarbing in an oven is possible, but the temperature must be carefully controlled
Decarbing before alcohol extraction is recommended to remove water from the biomass
Decarbing, or decarboxylation, is a chemical reaction that converts the non-active acid form of cannabinoids to their active form. It is a crucial step in the production of cannabis extracts to ensure the final product contains the desired levels of active cannabinoids. While decarbing can be done before or after the extraction process, there are several reasons why decarbing before alcohol extraction is advantageous, especially to remove water from the biomass.
Firstly, decarbing before extraction helps remove water from the biomass. This is important because the presence of water can lead to the co-extraction of unwanted green, brown, or black water-soluble substances, affecting the colour and purity of the final product. By decarbing beforehand, you can reduce the water content in the biomass, thereby minimizing the co-extraction of these undesirable compounds and improving the quality of your concentrate.
Secondly, decarbing before extraction can simplify the overall process. By decarbing first, you can utilize the same equipment for both decarbing and extraction, as the decarbing apparatus can serve as a reactor and evaporator, facilitating the removal of both CO2 and ethanol. This dual-purpose setup can save time, space, and equipment costs.
Additionally, decarbing before extraction provides more control over the process. By decarbing first, you can precisely activate the desired cannabinoids and ensure their complete conversion, maximizing the potency of your final product. This is especially important if your goal is to create a product with specific cannabinoid profiles, such as one rich in THC or CBD.
Moreover, decarbing before extraction is a recommended practice for certain types of end products. If your final product is intended for topical or edible consumption, such as capsules, decarbing beforehand is essential to ensure the activation of cannabinoids. On the other hand, if the product is meant for smoking or vaping, the high temperatures achieved during consumption can activate the cannabinoids, making pre-extraction decarbing unnecessary.
In conclusion, decarbing before alcohol extraction is recommended to remove water from the biomass, improve the purity and quality of the concentrate, simplify the process, gain better control over cannabinoid activation, and ensure the desired cannabinoid profile for specific product types. While post-extraction decarbing is also an option, the advantages of pre-extraction decarbing make it a preferred choice for many processors.
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Decarbing after alcohol extraction is possible, but may be a fire hazard
Decarbing after alcohol extraction is possible and may be done in certain situations. However, it is essential to exercise caution as alcohol is a flammable substance, and the decarbing process involves heating, which could potentially lead to a fire hazard if not handled properly.
Decarboxylation, or "decarbing," is a chemical reaction that converts the non-active acid form of cannabinoids into their active form. This process can be performed before or after extraction. When performed after extraction, it is known as a Closed Wash Decarb (CWD). This method is typically done while the extract is still in ethanol, and it serves the dual purpose of discharging both CO2 and ethanol.
Some people choose to decarb after extraction because it allows them to remove more water from the biomass before extraction, resulting in a purer product. Additionally, decarbing after extraction can be more convenient as it utilizes the same equipment for both evaporation and decarbing, saving time and effort.
However, one of the main concerns with decarbing after alcohol extraction is the potential fire hazard. Alcohol has a low boiling point and is highly flammable. During the decarbing process, the temperature is increased, which can cause the alcohol to evaporate rapidly and potentially ignite if not properly contained or ventilated. Therefore, it is crucial to have the proper equipment and safety measures in place when attempting to decarb after alcohol extraction.
Furthermore, it is important to note that decarbing after extraction may not always result in the optimal end product. Some people believe that decarbing before extraction leads to a higher-quality concentrate. Additionally, the heat involved in the decarbing process can cause the loss of natural terpenes, affecting the flavour and aroma of the final product.
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Decarbing in oil form is possible after evaporation
Decarboxylation is the process of removing a carboxyl group from a molecule through gentle heating. This process is essential for creating potent, high-quality extracts. It turns cannabinoid acids like CBD and THC into active, beneficial compounds that can be more easily absorbed by the body. When making edibles, decarboxylation typically occurs in an oven before infusion into a medium such as butter or oil.
When decarbing in oil form, it is important to control temperature and time. For example, one source recommends heating olive oil infused with CBD/THC buds in a fan-assisted oven at 120°C for 27 minutes. However, another source notes that at this temperature, THC will rapidly start to convert to CBN, resulting in a high CBN/CBD oil.
One user on a cannabis forum notes that they decarb their bud first, then infuse it with butter. They also mention that it is possible to infuse the butter first and then decarb it, but this is not their preferred method. Another user describes a process of evaporating ethanol from their product, leaving pure oil, and then continuing to apply heat to decarb the oil.
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Decarbing in a sealed jar with ethanol is possible, but takes 3-4 months
Decarbing in a sealed jar with ethanol is possible, but it is a slow process that can take up to 3-4 months. During this time, the THC-A gradually converts to THC. It is important to store the jar in a cool, dark place and shake it lightly once a week. This method, known as "jar tech", involves applying heat to the sealed jar, which increases the pressure inside and helps to prevent the valuable terpene profile from being blown off, oxidized, or degraded.
However, it is worth noting that some sources suggest that decarbing before ethanol extraction is preferable. This is because alcohol is an accelerant, and by removing as much water from the biomass as possible, you can avoid co-extracting water-soluble compounds that may affect the final product. Additionally, decarbing before extraction reduces the time required for soaking the buds, as the THC has already been activated.
The process of decarbing in a sealed jar with ethanol involves covering the plant material with ethanol by about a quarter to half an inch, sealing the jar, and storing it in a cool, dark place. The jar should be shaken lightly once a week, and the process can be adjusted based on the desired level of CBN and other conversions. After 3-4 months, the material can be filtered, resulting in a full-spectrum naturally decarbed tincture.
It is important to note that working with sealed, heated glass can be hazardous, especially if residual solvents are not well purged. Therefore, anyone attempting this process should exercise caution and follow all applicable safety precautions. Additionally, it is recommended to use the highest proof ethanol available to improve the effectiveness of the process.
While decarbing in a sealed jar with ethanol is possible, alternative methods such as using an oven to heat the plant material or decarbing in oil form after the evaporation of ethanol are also viable options that may be more convenient or suitable for different applications. Ultimately, the choice of method depends on the specific requirements and preferences of the individual.
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Decarbing in an oven is possible, but the temperature must be carefully controlled
To combat the temperature variability, it is recommended to use an oven-safe enclosed vessel, such as a DecarBox, which will provide insulation and more consistent temperatures. It is also suggested to calibrate your oven and use a secondary thermometer to check the temperature several times once it reaches the target temperature. If your oven is consistently too hot or too cold, consult your oven manual to adjust the calibration.
Additionally, exposing the compounds to freezing temperatures before decarbing can enhance access to these compounds and potentially increase extraction. After decarbing, freezing the bud can help decrease oxidation, which turns psychoactive chemicals into sleep-inducing compounds.
Decarbing in an oven is a common practice, especially when making edibles, but it is important to carefully control the temperature to avoid incomplete conversion, oxidation, or burning off valuable cannabinoids and terpenes.
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Frequently asked questions
Decarbing, or decarboxylation, is a chemical reaction that removes a carboxyl group (COOH) from a molecule. In the context of cannabis, decarbing is a critical step to activate the psychoactive properties of the cannabinoids present in the plant, like THC and CBD.
The bubbling reaction is drastically different when the ethanol evaporates. When the bubbling stops, the concentrate will decarb.
Alcohol extraction is a simple, fast, and safe way to produce a high-quality concentrate. It dissolves the THCA, decarboxylates it into THC, and preserves the resultant material so that it won't spoil.
